UP1637 UPI | Alldatasheet
Document overview
- Manufacturer or author: Provided By ALLDATASHEET.COM(FREE DATASHEET DOWNLOAD SITE)
- PDF pages: 24
Technical content
Features
GPU Core Power Supplies
Ordering Information
The uP1637 is an 6/5/4/3/2/1-phase PWM controller specifically designed to provide high-precision output voltage system for next generation GPUs. The uP1637 works with tables which programed by I2C. The controller also includes programmable output voltage and active voltage positioning functions to adjust the output voltage as a function of the load current, so it is optimally positioned for a load current transient. The uP1637 adopts continuous DCR current sensing for load line programming and channel current balance. The uP1637 also provides accurate and reliable over current protection, over voltage protection and a delayed power good output. The uP1637 includes an I2C interface, allowing the controller to communicate with other devices. Signals sent over the I2C bus can command the uP1637 to adjust output voltage, switching frequency and operating phase number in different load current state. The uP1637 is available in VQFN5x5-40L package. Note: uPI products are compatible with the current IPC/ JEDEC J-STD-020 requirement. They are halogen-free, RoHS compliant and 100% matte tin (Sn) plating that are suitable for use in SnPb or Pb-free soldering processes. GND 11ISP1 ISN2 ISP2 ISN3 ISP3 ISP4 ISN4 5VCC ISP6 TM PWM2 PWM3 PWM4 PWM5 ISN5 ISP5 ISN6 PWM6 PWM1 ISN1 FB EAP FBRTN COMP SS VID2 DACQ RT IMON VOUT PWRGD VRHOT# NC SCL VID1 VID0 EN/ADDR PSI# SDA
2 uP1637-DS-F0000, Mar. 2012 www.upi-semi.com Typical Application Circuit Load VCC5 EAP DACQ 5VCC GND IMON RT VNS SS EN/ADDR SCL SDA PWRGD PSI# VID[2:0] FBRTN COMP FB PWM1 VCC12 ISP1 ISN1 SW1 VCCP Repeat to 6 VCC PWM OD# GND BOOT UGATE PHASE LGATE uP1955 VCCN VCORE1 VNS VRHOT# TM PTC VCC5 VPS VOUT VPS
3uP1637-DS-F0000, Mar. 2012 www.upi-semi.com Functional Block Diagram Modulator Waveform Generator Power- On Reset Channel Current Sense VID Table Generator ISEN[N] > 50uA A/D Converter I2C Interface RT RAMP[6:1] FB EAP EA UVP COMP DACQ VID[2:0] FBRTN IMON OCP VOLTAGE_ADJ FREQ_ADJ PHASE_NUM_ADJ 5VCC EN PWM1 OE1RAMP1 COMP RCB1 ISEN1 ISP1 ISN1 ISEN1 = V(P,N)/RCS1 PSI# ADDR SCL SDA Soft Start & Fault Logic PWRGD SS OCP OVP POR 2.56V 0.5*ISUM 0.5*ISUM Repeat to 6 VRHOT# TM 5VCC 30% of 5VCC Default GND OVPVEAP + 300mV VEAP - 300mV UVP VOUT
4 uP1637-DS-F0000, Mar. 2012 www.upi-semi.com Functional Pin Description . oNe m aNn o i t c n u F n i P
11 N S I
. 1 e s a h P r o f r e i f i l p m AM Gg n i s n e S t n e r r u C e h t f o t u p n I g n i t r e v n If o y a w d i me h t o t n i p s i h t e i T e b d l u o h s r o t c u d n i 1 l e n n a h c f o e d i s E R O C V e h T . r o t i c a p a c g n is n e s 1 l e n n a h c f o e d i s E R O C V d l u o h s 1 r o t c u d n i f o e d i s E R O C V e h t o t 1 N S I n e e w t e b e c n a t s i s er e h T . e l b i s s o p s a e s o l c s a d e c a l p . n o i t a r e d i s n o c o t n i n e k a t e b d l u o h s e c n a t s i s e r e c a r t B C P . el b i s s o p s a l a u q e s a e b
22 N S I
. 2 e s a h P r o f r e i f i l p m AM Gg n i s n e S t n e r r u C e h t f o t u p n I g n i t r e v n If o y a w d i me h t o t n i p s i h t e i T e b d l u o h s r o t c u d n i 2 l e n n a h c f o e d i s E R O C V e h T . r o t i c a p a c g n is n e s 2 l e n n a h c f o e d i s E R O C V d l u o h s 2 r o t c u d n i f o e d i s E R O C V e h t o t 2 N S I n e e w t e b e c n a t s i s er e h T . e l b i s s o p s a e s o l c s a d e c a l p . n o i t a r e d i s n o c o t n i n e k a t e b d l u o h s e c n a t s i s e r e c a r t B C P . el b i s s o p s a l a u q e s a e b
32 P S I
. 2 e s a h P r o f r e i f i l p m AM Gg n i s n e S t n e r r u Ce h t f o t u p n I g n i t r e v n i - n o N r o f d e s u s i n i p s i h T t n e r r u c l e n n a h c r o f d e s u s i t n e r r u c d e s n e s e h T . t n e r r u c t u p tu o 2 l e n n a h c g n i s n e s y l l a i t n e r e f f i d g n i d n u o r r u s s t n e m e l e e s n e s C R e h t n e e w t e b e d o n e h t o t n i p s i ht t c e n n o C . n o i t c e t o r p d n a g n i c n a l a b . r o t c u d n i e h t
43 P S I
. 3 e s a h P r o f r e i f i l p m AM Gg n i s n e S t n e r r u Ce h t f o t u p n I g n i t r e v n i - n o N r o f d e s u s i n i p s i h T t n e r r u c l e n n a h c r o f d e s u s i t n e r r u c d e s n e s e h T . t n e r r u c t u p tu o 3 l e n n a h c g n i s n e s y l l a i t n e r e f f i d g n i d n u o r r u s s t n e m e l e e s n e s C R e h t n e e w t e b e d o n e h t o t n i p s i ht t c e n n o C . n o i t c e t o r p d n a g n i c n a l a b . r o t c u d n i e h t
53 N S I
. 3 e s a h P r o f r e i f i l p m AM Gg n i s n e S t n e r r u C e h t f o t u p n I g n i t r e v n If o y a w d i me h t o t n i p s i h t e i T e b d l u o h s r o t c u d n i 3 l e n n a h c f o e d i s E R O C V e h T . r o t i c a p a c g n is n e s 3 l e n n a h c f o e d i s E R O C V d l u o h s 3 r o t c u d n i f o e d i s E R O C V e h t o t 3 N S I n e e w t e b e c n a t s i s er e h T . e l b i s s o p s a e s o l c s a d e c a l p . n o i t a r e d i s n o c o t n i n e k a t e b d l u o h s e c n a t s i s e r e c a r t B C P . el b i s s o p s a l a u q e s a e b
64 N S I
. 4 e s a h P r o f r e i f i l p m AM Gg n i s n e S t n e r r u C e h t f o t u p n I g n i t r e v n If o y a w d i me h t o t n i p s i h t e i T e b d l u o h s r o t c u d n i 4 l e n n a h c f o e d i s E R O C V e h T . r o t i c a p a c g n is n e s 4 l e n n a h c f o e d i s E R O C V d l u o h s 4 r o t c u d n i f o e d i s E R O C V e h t o t 4 N S I n e e w t e b e c n a t s i s er e h T . e l b i s s o p s a e s o l c s a d e c a l p . n o i t a r e d i s n o c o t n i n e k a t e b d l u o h s e c n a t s i s e r e c a r t B C P . el b i s s o p s a l a u q e s a e b
74 P S I
. 4 e s a h P r o f r e i f i l p m AM Gg n i s n e S t n e r r u Ce h t f o t u p n I g n i t r e v n i - n o N r o f d e s u s i n i p s i h T t n e r r u c l e n n a h c r o f d e s u s i t n e r r u c d e s n e s e h T . t n e r r u c t u p tu o 4 l e n n a h c g n i s n e s y l l a i t n e r e f f i d g n i d n u o r r u s s t n e m e l e e s n e s C R e h t n e e w t e b e d o n e h t o t n i p s i ht t c e n n o C . n o i t c e t o r p d n a g n i c n a l a b . r o t c u d n i e h t
85 P S I
. 5 e s a h P r o f r e i f i l p m AM Gg n i s n e S t n e r r u Ce h t f o t u p n I g n i t r e v n i - n o N r o f d e s u s i n i p s i h T t n e r r u c l e n n a h c r o f d e s u s i t n e r r u c d e s n e s e h T . t n e r r u c t u p tu o 5 l e n n a h c g n i s n e s y l l a i t n e r e f f i d g n i d n u o r r u s s t n e m e l e e s n e s C R e h t n e e w t e b e d o n e h t o t n i p s i ht t c e n n o C . n o i t c e t o r p d n a g n i c n a l a b . r o t c u d n i e h t
95 N S I
. 5 e s a h P r o f r e i f i l p m AM Gg n i s n e S t n e r r u C e h t f o t u p n I g n i t r e v n If o y a w d i me h t o t n i p s i h t e i T e b d l u o h s r o t c u d n i 5 l e n n a h c f o e d i s E R O C V e h T . r o t i c a p a c g n is n e s 5 l e n n a h c f o e d i s E R O C V d l u o h s 5 r o t c u d n i f o e d i s E R O C V e h t o t 5 N S I n e e w t e b e c n a t s i s er e h T . e l b i s s o p s a e s o l c s a d e c a l p . n o i t a r e d i s n o c o t n i n e k a t e b d l u o h s e c n a t s i s e r e c a r t B C P . el b i s s o p s a l a u q e s a e b
016 N S I
. 6 e s a h P r o f r e i f i l p m AM Gg n i s n e S t n e r r u C e h t f o t u p n I g n i t r e v n If o y a w d i me h t o t n i p s i h t e i T e b d l u o h s r o t c u d n i 6 l e n n a h c f o e d i s E R O C V e h T . r o t i c a p a c g n is n e s 6 l e n n a h c f o e d i s E R O C V d l u o h s 6 r o t c u d n i f o e d i s E R O C V e h t o t 6 N S I n e e w t e b e c n a t s i s er e h T . e l b i s s o p s a e s o l c s a d e c a l p . n o i t a r e d i s n o c o t n i n e k a t e b d l u o h s e c n a t s i s e r e c a r t B C P . el b i s s o p s a l a u q e s a e b
116 P S I
. 6 e s a h P r o f r e i f i l p m AM Gg n i s n e S t n e r r u Ce h t f o t u p n I g n i t r e v n i - n o N r o f d e s u s i n i p s i h T t n e r r u c l e n n a h c r o f d e s u s i t n e r r u c d e s n e s e h T . t n e r r u c t u p tu o 6 l e n n a h c g n i s n e s y l l a i t n e r e f f i d g n i d n u o r r u s s t n e m e l e e s n e s C R e h t n e e w t e b e d o n e h t o t n i p s i ht t c e n n o C . n o i t c e t o r p d n a g n i c n a l a b . r o t c u d n i e h t 21C C V 5 . C I e h t r o f t u p n I y l p p u S o t n i p s i h t t c e n n o C . r e t l i f C R h t i w e c r u o s e g a t l o v V 5 a o t n i p si h t t c e n n o C . r o t i c a p a c c i m a r e c F u 1 . 0 a g n i s u e l p u o c e d d n a y l p p u s V 5 a
5uP1637-DS-F0000, Mar. 2012 www.upi-semi.com Functional Pin Description . oNe m aNn o i t c n u F n i P 31M T . r o t i n o M l a m r e h T 411 R . g n i t t e S e g a t l o V t u p t u O l a i t i n I . e g a t l o v T O O B V e h t t e s o t n i p s i h t n o r e d i v i d e g a t l o v a t c e n n oC 511 MW P . 1 e s a h P r o f t u p t u OMW P t u p n i e h t o t d e t c e n n o c s i t u p t u o h c a E . t u p t u o n o i t a l u d o m h t di w e s l u P . 5 5 9 1 P u e h t s a h c u s r e v i r d T E F S O M l a n r e t x e f o 612 MW P . 2 e s a h P r o f t u p t u OMW P t u p n i e h t o t d e t c e n n o c s i t u p t u o h c a E . t u p t u o n o i t a l u d o m h t di w e s l u P . 5 5 9 1 P u e h t s a h c u s r e v i r d T E F S O M l a n r e t x e f o 713 MW P . 3 e s a h P r o f t u p t u OMW P t u p n i e h t o t d e t c e n n o c s i t u p t u o h c a E . t u p t u o n o i t a l u d o m h t di w e s l u P . 5 5 9 1 P u e h t s a h c u s r e v i r d T E F S O M l a n r e t x e f o 814 MW P . 4 e s a h P r o f t u p t u OMW P t u p n i e h t o t d e t c e n n o c s i t u p t u o h c a E . t u p t u o n o i t a l u d o m h t di w e s l u P . 5 5 9 1 P u e h t s a h c u s r e v i r d T E F S O M l a n r e t x e f o 915 MW P . 5 e s a h P r o f t u p t u OMW P t u p n i e h t o t d e t c e n n o c s i t u p t u o h c a E . t u p t u o n o i t a l u d o m h t di w e s l u P . 5 5 9 1 P u e h t s a h c u s r e v i r d T E F S O M l a n r e t x e f o 026 MW P . 6 e s a h P r o f t u p t u OMW P t u p n i e h t o t d e t c e n n o c s i t u p t u o h c a E . t u p t u o n o i t a l u d o m h t di w e s l u P . 5 5 9 1 P u e h t s a h c u s r e v i r d T E F S O M l a n r e t x e f o 12D G R W P . n o i t a c i d n I d o o G r e w o P s i s s e c o r p t r a t s t f o s e h t s e t a c i d n i t a h t t u p t u o n i a r d - n e p o na s i n i p s i h T . s n e p p a h t l u a f o n d n a e t e l p m o c 22A D S . e c a f r e t n I C 2 I r o f a t a D . s u b C 2 I e h t f o e n i l a t a d l a n o i t c e r i d i b e h t o t A D S t c e n n o C 32K L C S I r o f k c o l C2 . e c a f r e t n I C . s u b C 2 I e h t r o f l a n g i s k c o l c e h t o t K L C S t c e n n o C 42# T O H R V . t u p t u Og n i n r a We r u t a r e p m e T h g i H e g a t l o v t u p t u o e h t n e h w e c n a d e p m i h g i h o t t e s s i n i p s i h T g n i n r a w e r u t a r e p m e t r e v o s d e e c x e e r u t a r e p m e t d e s n e s n e h ww o l d e l l u p d n a n o i t a l u g e r n i h t i w s i . l e v e l 52N O M I g n i t t e S t n e r r u C r e v O d n a n o i t a c i d n I t n e r r u C t u p t u Od n a n i p s i h t n e e w t e b r o t s i s e r a t c e n n o C . t u p t u o r o f s d n e t n i o s l a n i p s i h T . n o i t c e t o r p t n e r r u c r e v o r of l e v e l d l o h s e r h t r e g g i r t e h t t e s o t D N G . t n e r r u c t u p t u o e h t o t l a n o i t r o p o r p y l t c e r i d s i e g a t l o v s t ie c n i s n o i t a c i d n i t n e r r u c , 7 2 , 6 2 8 2 0 / 1 / 2 D I V . y a l P r e w o P r o f 0 / 1 / 2 s t u p n I l a t i g i D. l i a t e d r o f s n o i t c e s d e t a l e r e h t e e S
6 uP1637-DS-F0000, Mar. 2012 www.upi-semi.com Functional Pin Description . oNe m aNn o i t c n u F n i P 92# I S P . U P Gm o r f t u p n I r o t a c i d n I e t a t S r e w o P , w o l s e o g # I S P U P G n e h W . l a n g i s w o l e v i t c a n a s i # I S P . y c n e i c i f f e d a o l t h g i l e v o r p m i o t r e b m u n e s a h p g n i t a r e p o e ht e c u d e r l l i w r e l l o r t n o c 03R D D A / N E . e c a f r e t n I C 2 I r o f n o i t c e l e S s s e r d d Ad n a e l b a n Ep i h C s t u h s V 4 . 0 n a h t r e w o l n i p s i h t g n i l l u P y b d e s u e b l l i w s e s s e r d d a C 2 I e v a l s t i b - 8 o w t e h t f o h c i h w s t c el e s o s l a n i p e h T . e c i v e d e h t n w o d n i p s i h t g n i t c e n n o C . E 8 s s e r d d a e s o o h c l l i wV 5 2 . 2 n a h t r e h g i h n i p s i h t g n i t c e n n o C . r e l l o r t n o c e h t . C 8 s s e r d d a e s o o h c l l i wV 5 7 . 1 ~ V 5 0 . 1 n e e w t e b 13C N . d e t c e n n o C t o N 23T U O V . t u p n I n o i t c e t e De g a t l o V t u p t u O e h t o t n i p s i h t t c e n n o C . n o i t a l u g e r e g a t l o v r o f d e s u s i T U O V . R V f o t e n T U O V 33N T R B F . n r u t e Rk c a b d e e F t u p t u o e h t f o g n i s n e s e t o m e r r o f e c n e r e f e r r e i f i l p m a r o r r e dn aC A DD I V . e g a t l o v 43S S . t r a t S t f o S l l u P . e m i t p u - p m a r t r a t s t f o s e h t s t e s N T R B F d n a S S n e e w t e b d et c e n n o c r o t i c a p a c A . r e l l o r t n o c e h t n w o d t u h s l l i wD N Go t n i p s i h t 53Q C A D . t u p t u OC A D 63P A E . r e i f i l p m A r o r r E e h t f o t u p n I g n i t r e v n I - n o Ne h t t e s o t C A D o t n i p s i h t m o r f r o t s i s e r a t c e n n o C . e p o l s e n i l d a o l 73B F . n i P k c a b d e e F . r e i f i l p m a r o r r e e h t f o t u p n i g n i t r e v n i e h t s i n i p s i h T 83P M O C . t u p t u On o i t a s n e p m o C r e i f i l p m a r o r r e e h t f o t u p t u o e h t s i n i p s i h T 93T R . g n i mm a r g o r P y c n e u q e r Fg n i h c t i w S e h t t e s o t D N Go t n i p s i h t m o r f r o t s i s e r a t c e n n o C . y c n e u q e r f g n i h c t i w s
041 P S I
. 1 e s a h P r o f r e i f i l p m AM Gg n i s n e S t n e r r u C e h t f o t u p n I g n i t r e v n i - n o Nr o f d e s u s i n i p s i h T t n e r r u c l e n n a h c r o f d e s u s i t n e r r u c d e s n e s e h T . t n e r r u c t u p tu o 1 l e n n a h c g n i s n e s y l l a i t n e r e f f i d s t n e m e l e e s n e sC Re h t n e e w t e b e d o n e h t o t n i p s i h t t c e n n o C . n o i t c e t o r p d n a g n i cn a l a b . r o t c u d n i e h t g n i d n u o r r u s d a P d e s o p x E. d n u o r G . e l b a l i a v a n o i t c e n n o c e c n a d e p m i t s e w o l e h t h g u o r h t e n a l p /d n a l s i d n u o r g e h t o t n i p s i h t e i T
7uP1637-DS-F0000, Mar. 2012 www.upi-semi.com Functional Description The uP1637 is a 6/5/4/3/2/1-phase, multimode (voltage control, current balance control, loadline control), fixed frequency PWM synchronous-rectified buck controller. The internal VID DAC is designed to interface with the next generation GPUs. Phase Number of Operation The uP1637 supports 6/5/4/3/2/1-phase operation. The phase number of operation is set by the status of ISN pins at power on reset. These pins are asserted High if its voltage is higher than (5VCC - 1V). Normally, the uP1637 operates as an 6-phase PWM controller. Connect ISN6 to 5VCC for 5-phase operation; ISN5 to 5VCC for 4-phase operation; ISN4 to 5VCC for 3-phase operation, etc. When operating in 5-phase, PWM6 outputs are set high impedance; in 4-phase, PWM[6:5]; in 3-phase, PWM[6:4], etc. Phase number of operation is decided and latched at each POR rising edge. Phase Switching Frequency The phase switching frequency of the uP1637 is set by an external resistor connected between RT pin and GND. The frequency can be calculated as below and follows the graph in Figure 1. ×= k 2R 104 . 8F RT SW R T Rk (Ω )F W S ) z H k(R T Rk (Ω )F W S ) z H k ( 2 5 . 650 513 7 . 110 0 6 2 9 . 040 022 5 . 010 5 6 1 0 . 230 527 4 .90 0 7 9 . 520 031 8 .80 5 7 7 . 120 538 2 .80 0 8 7 0 . 910 041 7 .70 5 8 5 4 . 610 542 9 .60 0 9 6 6 . 410 056 4 .60 5 9 9 9 . 210 555 1 .60 0 0 1 100 100 1000 Switching Frequency (kHz) RRT (kohm) Figure1. RRT vs. Phase Switching Frequency VBG MUXFBRTN 1.875V RN 0.6V FBRTN 1.875V VDAC I2C Interface 0.6V ~ 1.875V Step = 5mV Figure2. VDAC Generator Circuit The uP1637 builds in a precise bandgap reference circuit as shown in Figure 2. The output voltage of bandgap reference is 1.875V with respective to FBRTN. The uP1637 uses plural resistors to generate precise reference voltages ranging from 0.6V to 1.875V, with 5mV increments. All the voltages connect to a multiplexer (MUX). The multiplexer outputs the selected voltage, VDAC according to the VID inputs and I2C command. Please note that all the voltage values in Figure 2 are referred to FBRTN. Initial Voltage Setting The R1 pin is an initial output voltage setting pin as shown in Figure 3.
Figure 3. Initial Voltage Setting and Address Selection related sections for detail. Pulling EN/ADDR lower than 0.6V shuts down the device. this pin between 1.05V~1.75V will choose address 8C. is programmed by Reg0xD3[7:6] and Reg0x17[7].
010 I V S
011 I V S
Figure 4 shows the power up sequence. Figure 4. Power Up Sequence
Figure 5. Circuit for VOUT Differential Sensing regulate the output voltage. This register is the initial voltage V_INI read back. Reg0xD2: VID register for SVI. Channel current OCP level adjusting. VR_HOT and thermal shut down level adjusting.
10 uP1637-DS-F0000, Mar. 2012 www.upi-semi.com IIC_TM[3:2] = [10]: VR_HOT# trigger level = 50% of 5VCC IIC_TM[3:2] = [11]: VR_HOT# trigger level = 60% of 5VCC IIC_TM[1:0] = [00]: Thermal shut down trigger level = 50% of 5VCC IIC_TM[1:0] = [01]: Thermal shut down trigger level = 60% of 5VCC IIC_TM[1:0] = [10]: Thermal shut down trigger level = 70% of 5VCC IIC_TM[1:0] = [11]: Thermal shut down trigger level = 80% of 5VCC MISC (Reg0xDC[7:4]) Reg0xDC[7:4] set the watch dog timer. MISC[7] = 1/0: enable/disable the watch dog timer. MISC[6]: read only. This bit is set to 1 if time-out happens and is set to 0 if this bit is read. MISC[5:4] = [00]: Time-out = 400ms. MISC[5:4] = [01]: Time-out = 800ms. MISC[5:4] = [10]: Time-out = 1600ms. MISC[5:4] = [11]: Time-out = 3200ms. FLAG (Reg0xDD[7:3]) These bits are set to 1 if faults happen. FLAG[7]: VRHOT# warning. FLAG[6]: UVP (Under Voltage Protection) FLAG[5]: OCP (Over Current Protection) FLAG[4]: TSD (Thermal Shut Down) FLAG[3]: OVP (Over Voltage Protection) IICVID (Reg0xDD[2:0]) Read back VID[2:0] VM Register (Reg0x01 ~ Reg0x07) VM0~6: Define the 8 load current states (LCS0~7) LCS0: V(IMON) > VM0[7:0]*10mV, highest load current. LCS1: VM0[7:0]*10mV > V(IMON) > VM1[7:0]*10mV LCS2: VM1[7:0]*10mV > V(IMON) > VM2[7:0]*10mV LCS3: VM2[7:0]*10mV > V(IMON) > VM3[7:0]*10mV LCS4: VM3[7:0]*10mV > V(IMON) > VM4[7:0]*10mV LCS5: VM4[7:0]*10mV > V(IMON) > VM5[7:0]*10mV LCS6: VM5[7:0]*10mV > V(IMON) > VM6[7:0]*10mV LCS7: VM6[7:0]*10mV > V(IMON), lowest load current. Functional Description VM_Hys (Reg0x08[2:0]) Define the V(IMON) hysteresis voltage of entering/exiting LCS. VM_Hys[2:0] = [000] : 0mV VM_Hys[2:0] = [001] : 15mV VM_Hys[2:0] = [010] : 30mV VM_Hys[2:0] = [011] : 45mV VM_Hys[2:0] = [100] : 60mV VM_Hys[2:0] = [101] : 75mV VM_Hys[2:0] = [110] : 90mV VM_Hys[2:0] = [111] : 105mV IICF0 (Reg0x11[7:6]), IICF1 (Reg0x11[5:4]), IICF2 (Reg0x11[3:2]), IICF3 (Reg0x11[1:0]), IICF4 (Reg0x12[7:6]), IICF5 (Reg0x12[5:4]), IICF6 (Reg0x12[3:2]), IICF7 (Reg0x12[1:0]) IICF0~7 define the frequency offset in load current states LCS0~7 respectively. F0 is the frequency set by resister between RT pin and GND. IICP0 (Reg0x13[7:4]), IICP1 (Reg0x13[3:0]), IICP2 (Reg0x14[7:4]), IICP3 (Reg0x14[3:0]), IICP4 (Reg0x15[7:4]), IICP5 (Reg0x15[3:0]), IICP6 (Reg0x16[7:4]), IICP7 (Reg0x16[3:0]) IICP0~7 define the operating phase number in load current states LCS0~7 respectively. IICPn[3:0] = [0000] => full-phase set by hardware IICPn[3:0] = [0001] => 1-phase IICPn[3:0] = [0010] => 2-phase IICPn[3:0] = [0011] => 3-phase IICPn[3:0] = [0100] => 4-phase IICPn[3:0] = [0101] => 5-phase IICPn[3:0] = [0110] => 6-phase IICPn[3:0] = [0111] => 6-phase IICPn[3:0] = [1xxx] => 6-phase
proportion to target operating phase number. latched-off will be activated. the OCP shut down and re-initiate soft start sequence. prevent false trigger. Only re-start up can release OVP latch. VTM > 0.3*V5VCC, default value, can be adjusted by I2C. VTM > 0.5 * V5VCC, default value, can be adjusted by I2C. An NTC network is also OK for temperature monitoring. Figure 10. Temperature Monitoring and VRHOT# will be programmed by I2C interface.
2 Phase
1 Phase
Figure 11. PSI# Function only change when the clock signal on the SCL line is LOW.
13uP1637-DS-F0000, Mar. 2012 www.upi-semi.com SDA SCL SDA stable Data Valid Change of SDA allowed START and STOP Conditions A START (S) condition is a HIGH to LOW transition of SDA while SCL is HIGH. The STOP (P) condition is a LOW to HIGH transition of SDA while SCL is HIGH. A STOP condition must be sent before each START condition. SDA SCL START(S) STOP(P) Acknowledge Each address and data transmission uses 9 clock pulses. The ninth pulse is the acknowledge bit (A). After the start condition, the master sends 7 slave address bits and a R/ W bit during the next 8 clock pulses. During the ninth clock pulse, the device that recognizes its own address pulls SDA low to acknowledge. The acknowledge bit is also used by both the master and the slave to acknowledge Functional Description receipt of register addresses and data. ACK(A) 981 START(S) SCL SDA MSB LSB Read and Write Protocol Write to a Single Register SW + r d d a _ e v a lsS Ar d d a _ g erS Aa t a d _ g erS AP Read from a Single Register SW + r d d a _ e v a lsS Ar d d a _ g erS AS R + r d d a _ e v a lsS Aa t a d _ g erA NP S = START, P = STOP, AS = ACK from slave, AM = ACK from master, NA = No ACK
Table 1. I2C Registers Summary for PVI and SVI
0 D x0R ] 0 : 7 [ D I p i hCh E1D I p i h C
3 D x0W / R
Table 2. I2C Register Mapping
Table 2. I2C Register Mapping (cont).
Table 3. VID Table for 0x8Bh, 0xD2h, 0xD4h~0xDBh, and 0x09h~0x10h Registers
18 uP1637-DS-F0000, Mar. 2012 www.upi-semi.com Storage Temperature Range ESD Rating (Note 2) Absolute Maximum Rating Thermal Information Recommended Operation Conditions
Electrical Characteristics
(5VCC = 5V, TA = 25OC, unless otherwise specified) Package Thermal Resistance (Note 3) Power Dissipation, PD @ TA = 25°C r e t e m a r aPl o b m ySs n o i t i d n o C t s eTn iMp yTx aMs t i n U t u p n I y l p p u S e g a t l o V t u p n I y l p p uSV 5 C C 5 .4- -5 .5V V 5 C C d l o h s e r h T R O P 0 .42 .44 .4V V 5 C C s i s e r e t s y HR OP. g n i l l a FC C V5- -2 1 .0- -V t n e r r u C y l p p uSI 5 C C g n i h c t i w S oN- -6- -A m r e i f i l p m A r o r r E e g a t l o V t e s f fOV ) A E ( S O 1-- -1V m t n e r r u C s a i B t u p nII A E 0 1-- -0 1A n t c u d o r P h t d i w d n a B n i aGW B G A E --0 1- -z H M y c a r u c c A e g a t l o V y c a r u c c A t u p t u OC ADV B F V 5 7 8 . 1 o t V 0 .15 . 0-- -5 .0% V 0 . 1 o t V 8 .08 -- -8V m V 8 . 0 o t V 6 .00 1-- -0 1V m
19uP1637-DS-F0000, Mar. 2012 www.upi-semi.com r e t e m a r aPl o b m ySs n o i t i d n o C t s eTn iMp yTx aMs t i n U t r a t S t f o S t n e r r u C t r a t S t f oSI S S l a m r oN4 22 30 4A u t n e r r u C g n i s i RD IVI S S t n e i s n a r t D IV- -6 52- -A u t u p n I R D D A / N E l e v e L d l o h s e r h T e l b n a E p i hCV R D D A / N EV R D D A / N Eg n i s ir4 .1- -- -V l e v e L d l o h s e r h T e l b n a E p i hCV R D D A / N EV R D D A / N Eg n i l l af- -- -4 .0V t n e r u C t u p nII R W P N E 1-- -1 A u t u p n I D I V l e v e L d l o h s e r h T h g i H t u p n I D IVV ] 2 : 0 [ D I V g n i s i r 2 D I V ~ 0 D IV4 .1- -- -V l e v e L d l o h s e r h T w o L t u p n I D IVV ] 2 : 0 [ D I V g n i l l a f 2 D I V ~ 0 D IV- -- -4 .0V r o t a l l i c s O e g n a R y c n e u q e rFF W S 0 01- -0 0 01z H k n o i t a i r a V y c n e u q e rFR T R k 6 2 =Ω 0 720 030 33z H k y t u D x aMR T R k 6 2 =Ω --3 8- -% e g a t l o V t u p t uOV T R 5 7 .00 8 .05 8 .0V S C C V e c n a l a B t n e r r u C e g a t l o V t e s f fOV ) S C C V ( S O 1-- -1V m t n e r r u C s a i B t u p nII A E 0 1-- -0 1A n t c u d o r P h t d i w d n a B n i aGG ) S C C V ( W B --0 1- -z H M t u p t u OMWP e g a t l o Vw o L t u p t uOV ) M W P ( L OI K N I S A m 4=- -- -2 .0V e g a t l o V h g i H t u p t uOV M W P ( H OV 5 C C I , V 5 =E C R U O SA m 4=7 .4- -- -V t u p u OD G RWP e g a t l o Vw o L t u p t uOV ) D G R W P ( L OI K N I S A m 4=- -- -2 .0V g n i r o t i n o M t n e r r u C e g a t l o V t u p t u ON O MId a o L l l uF6 4 .26 5 .26 6 .2V n o i t a i r a V e g a t l o VN O MId a o L l l uF6 -- -6 %
20 uP1637-DS-F0000, Mar. 2012 www.upi-semi.com Note 1. Stresses listed as the above “Absolute Maximum Ratings” may cause permanent damage to the device. These are for stress ratings. Functional operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to absolute maximum rating conditions for extended periods may remain possibility to affect device reliability. Note 2. Devices are ESD sensitive. Handling precaution recommended. Note 3. θ JA is measured in the natural convection at TA = 25°C on a low effective thermal conductivity test board of JEDEC 51-3 thermal measurement standard. Note 4. The device is not guaranteed to function outside its operating conditions. r e t e m a r aPl o b m ySs n o i t i d n o C t s eTn iMp yTx aMs t i n U n o i t c e t o r P d l o h s e r h T P VOV P V O V B FV - P A E 5 520 035 43V m y a l e DP VOT P V O --0 2- -s u d l o h s e r h T P VUV P V U V B FV - P A E 5 4 3-0 0 3-5 5 2-V m y a l e DP VUT P V U --0 1- -s u y a l e DP C O t n e r r u C l e n n a hCT 1 P C O --0 8- -s u l e v e L P C ON O M I 6 4 .26 5 .26 6 .2V y a l e DP C O t n e r r u C l a t oTT 2 P C O --0 8- -s u
21uP1637-DS-F0000, Mar. 2012 www.upi-semi.com Typical Operation Characteristics PWM4 (5V/Div) IMON (1V/Div) VOUT (0.5V/Div) PWM1 (5V/Div) PWM4 (5V/Div) IMON (1V/Div) VOUT (0.5V/Div) PWM1 (5V/Div) PWM4 (5V/Div) PSI# (5V/Div) VOUT (50mV/Div) PWM1 (5V/Div) PWM4 (5V/Div) PSI# (5V/Div) VOUT (50mV/Div) PWM1 (5V/Div) EN (2V/Div) SS (1V/Div) PWM1 (5V/Div) PWRGD (2V/Div) EN (2V/Div) SS (0.5V/Div) VOUT (0.5V/Div) PWRGD (2V/Div) Turn Off Waveforms Time (2us/Div) Turn On Waveforms Time (1ms/Div) PSI# Rising Time (10us/Div) PSI# Falling Time (10us/Div) Auto Phase Time (400us/Div) Auto Phase Time (1ms/Div)
22 uP1637-DS-F0000, Mar. 2012 www.upi-semi.com SS (0.5V/Div) VID (2V/Div) VOUT (0.5V/Div) PWM1 (5V/Div) -50 -25 0 25 50 75 100 125 150 -3.0 -2.5 -2.0 -1.5 -1.0 -0.5 0.0 0.5 1.0 1.5 2.0 2.5 3.0 -50 -25 0 25 50 75 100 125 150 250 260 270 280 290 300 310 320 330 340 350 -50 -25 0 25 50 75 100 125 150 IMON (1V/Div) PWRGD (2V/Div) VOUT (0.5V/Div) PWM1 (5V/Div) SS (0.5V/Div) VID (2V/Div) VOUT (0.5V/Div) PWM1 (5V/Div) Typical Operation Characteristics Frequency vs. Temperature Temperature (OC) Frequency (kHz) DAC vs. Temperature Temperature (OC) DAC Accuracy(%) VSS vs. Temperature Temperature (OC) VSS Variation (%) VID High Time (400us/Div) VID Low Time (400us/Div) Over Current Protection Time (20us/Div)
23uP1637-DS-F0000, Mar. 2012 www.upi-semi.com
Package Information
1.Package Outline Unit Description: BSC: Basic. Represents theoretical exact dimension or dimension target MIN: Minimum dimension specified. MAX: Maximum dimension specified. REF: Reference. Represents dimension for reference use only. This value is not a device specification. TYP. Typical. Provided as a general value. This value is not a device specification. 2.Dimensions in Millimeters. 3.Drawing not to scale. 4.These dimensions do not include mold flash or protrusions. Mold flash or protrusions shall not exceed 0.15mm. 4.90 - 5.10 Pin 1 mark Bottom View - Exposed Pad 3.20 - 3.85 3.20 - 3.80 0.15 - 0.25 3.20 - 3.80 0.30 - 0.50 4.05 - 4.15 4.90 - 5.10 0.0 - 0.05 0.20 REF Recommended Solder Pad Pitch and Dimensions 0.15 - 0.25 5.45 - 5.55 0.80 - 1.00
24 uP1637-DS-F0000, Mar. 2012 www.upi-semi.com Important Notice uPI and its subsidiaries reserve the right to make corrections, modifications, enhancements, improvements, and other changes to its products and services at any time and to discontinue any product or service without notice. Customers should obtain the latest relevant information before placing orders and should verify that such information is current and complete. uPI products are sold subject to the terms and conditions of sale supplied at the time of order acknowledgment. However, no res ponsibility is assumed by uPI or its subsidiaries for its use; nor for any infringements of patents or other rights of third parties which may result from its use. No license is granted by implication or otherwise under any patent or patent rights of uPI or its subsidiaries. COPYRIGHT (C) 2011, UPI SEMICONDUCTOR CORP. uPI Semiconductor Corp. Headquarter 9F.,No.5, Taiyuan 1st St. Zhubei City, Hsinchu Taiwan, R.O.C. uPI Semiconductor Corp. Sales Branch Office 12F-5, No. 408, Ruiguang Rd. Neihu District, Taipei Taiwan, R.O.C.