AP450 ANACHIP | Alldatasheet

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2 Channel Linear Controller with Enable Function

This datasheet contains new product information. Anachip Corp. reserves the rights to modify the product specification without notice. No liability is assumed as a result of the use of this product. No rights under any patent accompany the sale of the product. Rev. 1.1 Sep 7, 2004 „ Features - 2 Channel Linear Control Circuitries - Operating voltage can be up to 20V - Under voltage Lockout (UVLO) Protection - Current Limit - Over Voltage Protection - Power Good Function - 1.25V/0.8V internal voltage reference - 8-pin PDIP and SOP Pb-Free packages „ Applications - Backlight inverter - LCD Monitor - XDROM, XDSL Product „ General Description The AP450 series integrates two channel linear controllers into a single chip, mainly designs for power-supply regulator. All the functions included an on-chip 1.25V/0.8V reference output, error amplifier, UVLO, current limit. During low VCC situation, the UVLO makes sure that the outputs are off until the internal circuit is operational normally. „ Pin Assignment SOP-8L/PDIP-8L (Top View) EN1/2 FB1 AP450 OUT1 FB2 OUT2 VREF GND Vcc „ Pin Descriptions Pin Name Pin No.

Description

Linear Controller CH1output FB1, 2 4, 5 Voltage Feedback OUT2 Linear Controller CH2 output VREF 1.25V/0.8V Output Vcc Supply Voltage „ Ordering Information AP450 X X X Package Packing N: PDIP-8L S: SOP-8L Blank: Tube A : Taping Bandgap Version A: 1.25VBG B: 0.8VBG

Anachip Corp. „ Block Diagram Bandgap Reference Amp Current Limit Buffer LPF Amp Buffer LPF EN1/2 FB2 FB1 GND OUT1 OUT2 Current Limit UVLO Vcc 1.25V/0.8V 2.5V VREF „ Absolute Maximum Ratings Symbol Parameter Rating Unit VCC Supply voltage V VI Amplifier input voltage V VO1 / VO2 CH1 / CH1Linear driver voltage to ground -0.3≦V≦20 V TOP Operating temperature range -20 to +85 oC TST Storage temperature range -65 to +150 oC TLEAD Lead temperature 1.6 mm(1/16 inch) from case for 10 seconds 260 oC „ Recommended Operating Conditions Symbol Parameter Min. Max. Unit VCC Supply voltage 3.6 V VI Amplifier input voltage 1.05 1.45 V VO1 / VO2 CH1 / CH2 Linear driver voltage to ground Vcc-1.5 V IFB Current into feedback terminal µA RF Feedback resistor 100 kΩ TOP Operating free-air temperature -20 ºC

Anachip Corp. „ Electrical Characteristics (TA=25ºC, VCC=6V) Reference (REF) Symbol Parameter Conditions Min. Typ. Max. Unit AP450A 1.225 1.25 1.275 VO1 / VO2 connect to FB1 / FB2 AP450B 0.784 0.800 0.816 V TA = -20ºC ~ 25ºC -0.1 VOUT1/2 Output voltage change with temperature TA = 25ºC ~ 85ºC -0.2 Under voltage lockout (UVLO) VUT Upper threshold voltage (VCC) 2.9 V VLWT Lower threshold voltage (VCC) 2.4 V VHT Hysteresis (VCC) IO(REF) = 0.1mA TA = 25ºC 500 mV Output section ICL1 CH1 Current Limit VCC=5V, VNOUT2=VFB2=0V mA ICL2 CH2 Current Limit VCC=5V, VNOUT3=VFB3=0V mA Enable function VIL Low (regulator ON) 0.6 V VIH EN pin logic input threshold voltage for EN1/2 High (regulator OFF) 2.0 1.3 V IIL Low (regulator ON) -0.03 µA IIH EN pin logic input current for EN1/2 High (regulator OFF) 0.3 µA Total device ICCA Average supply current mA Thermal Resistor SOP8 OC/W θJA Thermal Resistor Junction to Ambient PDIP8 OC/W „ Typical Application Circuit GND Vcc EN1/2 FB1 FB2 OUT1 OUT2 V REF Vcc=12V OFF ON VOUT3=1.8V 270Ω 220µF 3.3V 3.3V 220Ω 390Ω 180Ω VOUT2=2.5V 0.1µF 220µF 220µF AP450B

Anachip Corp. „ Typical Characteristics REFERENCE OUTPUT VOLTAGE v.s. POWER-SUPPLY VOLTAGE 0.795 0.7975 0.8 0.8025 0.805 Vcc-Power Supply Voltage (V) Vref- Reference Output Voltage (V) AVERAGE SUPPLY CURRENT v.s. POWER-SUPPLY VOLTAGE Vcc - Power-Supply Voltgae (V) Icc-Average Supply Current (mA) AVERAGE SUPPLY CURRENT v.s. AMBIENT TEMPERATRUE -50 -25 100 TA - Ambient Temperatrure(℃) ICC - Average Supply Current (mA) „ Marking Information (Top View) SOP-8L/PDIP-8L AP450 X YY WW X Logo Part No. ID code: internal Year: "01" =2001 "02" =2002 Xth week: 01~52 Bandgap version A: 1.25VBG B: 0.8VBG

Anachip Corp. „ Package Information (1) PDIP-8L (Plastic Dual-in-line Package ) D 7 (4X) A L B e S 15 (4X) E C eB E-PIN O0.118 inch PIN #1 INDENT O0.025 DEEP 0.006-0.008 inch Dimensions in millimeters Dimensions in inches Symbol Min. Nom. Max. Min. Nom. Max. A 5.33 0.210 0.38 0.015 3.1 3.30 3.5 0.122 0.130 0.138 B 0.36 0.46 0.56 0.014 0.018 0.022 1.4 1.52 1.65 0.055 0.060 0.065 0.81 0.99 1.14 0.032 0.039 0.045 C 0.20 0.25 0.36 0.008 0.010 0.014 D 9.02 9.27 9.53 0.355 0.365 0.375 E 7.62 7.94 8.26 0.300 0.313 0.325 6.15 6.35 6.55 0.242 0.250 0.258 e 2.54 0.100 L 2.92 3.3 3.81 0.115 0.130 0.150 eB 8.38 8.89 9.40 0.330 0.350 0.370 S 0.71 0.84 0.97 0.028 0.033 0.038

Anachip Corp. „ Package Information (Continued) (2) SOP- 8L(JEDEC Small Outline Package) VIEW "A" L C VIEW "A" H E A B e D 7 (4X) 0.015x45 7 (4X) y Dimensions In Millimeters Dimensions In Inches Symbol Min. Nom. Max. Min. Nom. Max. A 1.40 1.60 1.75 0.055 0.063 0.069 0.10 0.25 0.040 0.100 1.30 1.45 1.50 0.051 0.057 0.059 B 0.33 0.41 0.51 0.013 0.016 0.020 C 0.19 0.20 0.25 0.0075 0.008 0.010 D 4.80 5.05 5.30 0.189 0.199 0.209 E 3.70 3.90 4.10 0.146 0.154 0.161 e 1.27 0.050 H 5.79 5.99 6.20 0.228 0.236 0.244 L 0.38 0.71 1.27 0.015 0.028 0.050 y 0.10 0.004 θ