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FA5311BP

Fuji Electric
Part Number FA5311BP
Manufacturer Fuji Electric
Description Bipolar IC For Switching Power Supply Control
Published Mar 30, 2005
Detailed Description FA531X series series FA531X Bipolar IC For Switching Power Supply Control s Dimensions, mm SOP-8 8 5 FA5310BP(S), FA53...
Datasheet PDF File FA5311BP PDF File

FA5311BP
FA5311BP

Overview
FA531X series series FA531X Bipolar IC For Switching Power Supply Control s Dimensions, mm SOP-8 8 5 FA5310BP(S), FA5314P(S), FA5316P(S) FA5311BP(S), FA5315P(S), FA5317P(S) s Description The FA531X series are bipolar ICs for switching power supply control that can drive a power MOSFET.
These ICs contain many functions in a small 8-pin package.
With these ICs, a high-performance and compact power supply can be created because not many external discrete components are needed.
1 6.
05 4 +0.
1 –0.
05 • Drive circuit for connecting a power MOSFET • Wide operating frequency range (5 to 600kHz) • Pulse-by-pulse overcurrent limiting function • Overload cutoff function (Latch or non-protection mode selectable) • Output ON/OFF control function by external signal • Overvoltage cutoff function in latch mode • Undervoltage malfunction prevention function • Low standby current (90µA typical) • Exclusive choices by circuits (See selection guide on page 25) • 8-pin package (DIP/SOP) ° 0~10 0.
4±0.
1 1.
27±0.
2 0.
6 DIP-8 8 5 s Applications • Switching power supply for general equipment 1 9.
3 1.
5 4 6.
5 3.
0min 4.
5max 3.
4 0.
3 7.
6 s Block diagram FA5310BP(S)/FA5311BP(S)/FA5316P(S)/FA5317P(S) 2.
54±0.
25 0.
5±0.
1 0~15 ˚ 0~1 5˚ Pin No.
1 2 3 4 5 6 7 8 Pin symbol Description Oscillator timing resistor Feedback Overcurrent (+) detection Ground Output Power supply Oscillator timing capacitor Soft-start and ON/OFF control RT FB IS (+) GND OUT VCC CT CS FA5314P(S)/FA5315P(S) Pin No.
1 2 3 4 5 6 7 8 Pin symbol Description Oscillator timing resistor Feedback Overcurrent (–) detection Ground Output Power supply Oscillator timing capacitor Soft-start and ON/OFF control RT FB IS (–) GND OUT VCC CT CS 1 2.
0max +0.
1 5 –0.
0 0.
20 s Features 8.
2±0.
3 5.
3 FA531X series s Selection guide Type FA5310BP(S) FA5311BP(S) FA5314P(S) FA5315P(S) FA5316P(S) FA5317P(S) Max.
duty cycle (typ.
) 46% 70% 46% 70% 46% 70% UVLO (typ.
) Polarity of overcurrent detection ON threshold OFF threshold +...


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