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Technical content
Features
Wide Supply Voltage Operating Range: 1.8 to 15V Precision Reference Voltage: 0.5V ± 2% Low Current Consumption: 5.5mA in Operation Mode Low Current Consumption: 1 μA in Standby Mode High Oscillator Frequency: 1MHz max. Totem-Pole Output with Adjustable ON / OFF Current (for NPN Transistors or n-Channel MOSFET) Logic Level Control Stand-by Mode Function Programmable Soft Start Function (SS) Short Circuit Protection Function (SCP) Package: TSSOP-8L
Applications
Digital Camera PDA Portable Equipment
This datasheet contains new product information. Feeling Technology reserves the ri ghts 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 sales of the product. Function Block Diagram Soft Start SCP Reference voltage supply Sawtooth wave oscillator Output drive control circuit 0.1V 0.5V Error Amp. 500 36k 0.6V 1.25V DTC 0.6V PWM Comp. 0.1V 30k 0.22V VCC GND SCP BR / CTL OSC OUT FB COMP
This datasheet contains new product information. Feeling Technology reserves the ri ghts 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 sales of the product. Pin Descriptions TSSOP-8L Marking Information TSSOP-8L 9Fa-86L Halogen Free Lot Number Per-Half Month Year FP5139 Internal ID Name No. I / O Description FB 1 I Error Amplifier Inverting Input SCP 2 I Soft Start and SCP Function Connect a Capacitor to this pin VCC 3 P IC power supply BR / CTL 4 I Output Current Setting and Control OUT 5 O Totem-Pole Output GND 6 P IC Ground OSC 7 I Oscillator Output: Connect Capacitor and Resistor to this pin for Frequency Adjustment COMP 8 O Error Amplifier Compensation Output Halogen Free: Halogen free product indicator Lot Number: Wafer lot number’s last two digits For Example: 132386TB 86 Internal ID: Internal Identification Code Per-Half Month: Production period indicated in half month time unit For Example: January → A (Front Half Month), B (Last Half Month) February → C (Front Half Month), D (Last Half Month) Year: Production year’s last digit
This datasheet contains new product information. Feeling Technology reserves the ri ghts 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 sales of the product.
Ordering Information
Part Number Operating Temperature Package MOQ Description FP5139BWR-LF -10°C ~ +85°C TSSOP-8L 2500EA Tape & Reel Absolute Maximum Ratings Parameter Symbol Conditions Min. Typ. Max. Unit Power Supply Voltage V IN 15 V Output Source Current -50 mA Output Sink Current 50 mA Allowable Power Dissipation SOP-8L, TA +25≦ ℃ 570 mW MSOP-8L, TA +25≦ ℃ 400 mW TTSOP-8L, TA +25≦ ℃ 400 mW Storage Temperature -55 +125 ℃ Lead Temperature SOP-8L, (soldering, 10 sec) +260 ℃ TSSOP-8L, (soldering, 10 sec) +260 ℃ MSOP-8L, (soldering, 10 sec) +260 ℃ Suggested IR Re-flow Soldering Curve
This datasheet contains new product information. Feeling Technology reserves the ri ghts 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 sales of the product. Recommended Operating Conditions Parameter Symbol Conditions Min. Typ. Max. Unit Supply Voltage 1.8 15 V Operating Temperature -10 +85 ℃ Parameter Symbol Test Conditions Min. Typ. Max. Unit Under Voltage Lock-Out Section (UVLO) Low Threshold Voltage VLOW 0.9 V Upper Threshold Voltage V UPPER 1.1 1.3 1.5 V Soft Start Section (SS) Input Source Current I SS V SCP= 0V -1.5 -1.0 -0.7 µA Soft Start Threshold Voltage V SST 0.8 0.9 1.0 V Short Circuit Protection Section (SCP) Input Source Current I SCP V SCP= 0V -1.5 -1.0 -0.7 μA SCP Threshold Voltage V SCP 0.7 0.8 0.9 V Oscillator Section Oscillation Frequency f R T =3.0KΩ, CT =270pF 400 500 600 KHz Frequency Change With Voltage Δf / ΔV V CC =2V to 15V 2 10 % Frequency Change With Temperature Δf / ΔT TA = 0℃ to 85℃ 5 % Idle Period Adjustment Section Maximum Duty Cycle T DUTY RT =3.0kΩ, CT =270pF, VFB =0.8V 85 % Maximum Duty Cycle Change With Temperature Δ TDUTY / ΔT TA = -10℃ to 85℃ 10 % Total Device Section Standby Current I STANDBY Pin 4 is open or =VCC 1 μA Average Current Consumption I AVE RB =390Ω, VCC =0~15V 5.0 10 mA Error Amplifier Section Input Threshold Voltage V FB V COMP =450mV 490 500 510 mV VT Change With Voltage ΔVFB / ΔV VCC =2V to 15V 5 20 mV VT Change With Temperature ΔVFB / ΔT TA = -10℃ to 85℃ 1 % Input Bias Current I B -1.0 -0.2 1.0 μA Voltage Gain Av 100 V / V Frequency Bandwidth BW A V =0 dB 6 MHz Output Voltage Swing Positive V POS 0.78 0.87 V Output Voltage Swing Negative V NEG 0.05 0.2 V Output Source Current I SOURCE V COMP =450 mV -40 -24 μA Output Sink Current I SINK V COMP =450 mV 24 40 μA
This datasheet contains new product information. Feeling Technology reserves the ri ghts 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 sales of the product. Parameter Symbol Test Conditions Min. Typ. Max. Unit Output Section Output High Voltage VOH1 RB=390Ω, IO=-15mA 1.0 1.2 V VOH2 RB=750Ω, IO=-10mA, VCC= 1.8V 0.8 1.0 V Output Saturation Voltage VOL1 RB=390Ω, IO=15mA 0.1 0.2 V VOL2 RB=750Ω, IO=10mA, VCC= 1.8V 0.1 0.2 V Output Source Current I OSOURCE RB=390Ω, Vo=0.9V -40 -20 mA Output Sink Current I OSINK RB=390Ω, Vo=0.3V 30 40 - mA Internal Pull-Down Resistor R O 20 30 40 kΩ Output Current Setting / Control Section Pin Voltage V BR RB=390Ω 0.15 0.22 0.3 V Input Off Condition I OFF -20 0 μA Input On Condition I ON -45 μA Pin Current Range I BR -1.8 -0.1 mA
This datasheet contains new product information. Feeling Technology reserves the ri ghts 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 sales of the product.
This datasheet contains new product information. Feeling Technology reserves the ri ghts 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 sales of the product. Function Description Voltage Reference A 1.25V regulator operating from V CC is used to power the FP5139 internal circuitry. An internal resistive divider provides 0.5V re ference for the error amplifier, Soft-start (0.9V typ.) and SCP (0.8V typ.) circuits. Error Amplifier The error amplifier compares a sample of t he DC-DC converter outpu t voltage to the 0.5V reference and generates an error signal for the PWM comparator. Output voltage of DC-DC converter is setting with the resistor divider using the following equation (see figure12): 5.02R 1R1VOUT 0.5V 36K 500 VOUT FP5139 Error Amplifier Figure 12 Error Amplifier with Feedback resistance divider Oscillator The oscillator frequency can be set from 20KHz to 1MHz by connecting a resistor and a capacitor at OSC pin of FP5139 to ground. The oscillator frequency can be determined by using the graph shown in Figure 9. The oscillator output is a sawtooth wave with a minimum value of approximately 0.1V and a maximum value of approximately 0.6V. The PWM com parator compares the oscillator voltage with error amplifier output voltage, internal maximum duty control voltage (0.6V typ.) and soft start setting voltage. When the sawtooth wave voltage is lower than all of above three-output voltage, the output of FP5139 is high (Turn on external NPN transistor or NMOS).
This datasheet contains new product information. Feeling Technology reserves the ri ghts 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 sales of the product. Under Voltage Lockout (UVLO) The under voltage lockout circuits turn the output off whenever the supply voltage drops too low (approximately 0.9V at 25 ℃) for proper operation. A hysteresis voltage of 200mV eliminates false triggering on noise and chattering. Soft Start/ Short-circuit protection (SS / SCP) The soft start is functional after power on. The interval of soft start time is determined by a capacitor connected to SCP pin (pin 2). When soft start function finished, the internal soft start voltage is setting high, but external SCP pin is setting lo w in order to change to short circuit detection / protection function. The time of soft start is: [] [ ]FμC×35.0=mSTss The short circuit protection is triggered when a heavy loading makes output voltage drop and error amplifier output (COMP pin) is larger than VPOS (0.9V typ.). The SS pin capacitor will be charged to the SCP threshold voltage (0.8V typ.), then FP5139 output is disabled (internal pull-low) and the capacitor is discharged to low. The time of short circuit protection is: [] [ ]FμC×8.0=mSTscp Output Transistor The FP5139 has a totem-pole transistor with a 40m A source/sink current capability to drive an external NPN transistor or NMOS directly. The driving current capability depends on a resistor R that is connected to BR / CTL pin (Pin4) of FP5139. (see figure 13) Figure 13 Output Transistor Driving Control Circuit
This datasheet contains new product information. Feeling Technology reserves the ri ghts 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 sales of the product. BR / CTL pin can also use to control the output of FP5139 for disable or enable function of system. Control Pin Q1 BR / CTL Pin Output Transistor Function Mode Low Off Open Disable Stand-by High On Bias Current Enable Operation
This datasheet contains new product information. Feeling Technology reserves the ri ghts 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 sales of the product.
Application Information
Vout 9V/0.5AVin 3V Vin 390 CA1 0.1uF L1 10uH 51k 20k C11 220uF 0.1uF NPN 0.1uF C8 0.1uF 220uF NPN R7 4.7k 0.1uF IC1 FP5139 4 5 8FB SCP VCC BR/CTL OUT GND OSC COMP 3.9k 330pF AP2306GN PNP R3 0 SM340A SW1 ON/OFF Socket Figure14 DC 3V to DC 9V Boost Converter Circuit Vin 9~24V Vout 12V/2A Vin PNP NPN 390 L1 22uH 0.1uF 46k CA1 1uF 20k 470uF 0.1uF C10 10uF SR55 NPN QA1 NPN R7 4.7k Cs1 22uF 0.1uF IC1 FP5139 4 5 8FB SCP VCC BR/CTL OUT GND OSC COMP 470pF 3.9k DA1 10V AP9974AGH 22uHR3 0 330uF RA1 SW1 ON/OFF Socket Figure15 DC 9V~24V to DC 12V SEPIC Converter Circuit
This datasheet contains new product information. Feeling Technology reserves the ri ghts 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 sales of the product. C16 0.1uF R R17 4.7k SW1 ON/OFF Socket R14 R13 0 C10 0.1uF C17 470pF R16 C1 0.1uF R12 51k 1% 0.1uF Vin CON3 Vot Socket3 R Vout2 R L1 33uH D5 SCD34 1uF BAT54S/SOT_0 CON1 Vot Socket2 C15 100uF CON4 Vot Socket1 C11 R Vout3Q2 NPN BEC Vout1 IC1 FP5139 4 5 8FB SCP VCC BR/CTL OUT GND OSC COMP Vout1 TL431 C2 0.1uF Vout2 1uF R NPN 3904 CON2 Vin Socket R15 3k 1% L2 33uH Vout3 C14 0.1uF 1uF MOSFET P NPN R10 R 1uF C12 220uF/6.3V 1uF R D1 BAT54S/SOT_0 TL431 3 2 Vin C13 100uF R11 R Vin Q5 MOSFET N GDS1 1uF Figure16 Charge Pump DC-DC Converter Circuit VCC +C1 330uF D5 BAT54HT1 + C8 100uF/25V (R9+R8)=17.48*R12 104 2N3904 R11 5.1K COMP L1 18uH 220 FUSE +15V 33KON / OFF 56K 10K L3 33uH + C12 100uF/16V R12 3.3K +3.3V 0.1uF 1.8K + C13 47uF/16V + C14 100uF/16V D2 BAT54HT1 R6 0 C16 1nF + C10 100uF/16VD4 BAT54RCLT1 470pF BAT54RCLT1 L4 33uH L2 33uH +5V + C9 47uF/16V + C15 47uF/16V 8.2 L5 33uH -7.5V CTL FP5139 4 5 8FB SCP VCC CTL OUT GND Cosc COMP FB R10 33K 0.47uF + C11 47uF/16V AP2304 270pF SCP CLS12 Figure17 Flyback Multi-Output DC-DC Converter Circuit
This datasheet contains new product information. Feeling Technology reserves the ri ghts 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 sales of the product. Timing Waveform Soft-start ts COMP pin Voltage Soft-start setting voltage OUT pin waveform SS/SCP pin waveform Idle period setting voltage Oscillator waveform Control pin voltage Output Short Circuit Output Short Circuit tpe Short Circuit Protection IC Shutdown Reference input for SCP Comparator Figure18 FP5139 Timing Diagram
This datasheet contains new product information. Feeling Technology reserves the ri ghts 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 sales of the product. Package Outline TSSOP-8L UNIT: mm Notes: 1. Package dimensions are in compliance with JEDEC outline: MO-153 AA. 2. Dimension “D” does not include moldi ng flash, protrusions or gate burrs. 3. Dimension “E1” does not include inter-lead flash or protrusions. Symbols Min. (mm) Max. (mm) A 1.200 A1 0.050 0.150 A2 0.960 1.060 D 2.900 3.100 E 6.400 BSC E1 4.300 4.500 L 0.450 0.750 θ° 0° 8°