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FP1451

Feeling Technology
Part Number FP1451
Manufacturer Feeling Technology
Description DUAL CHANNEL PWM CONTROL IC
Published Aug 25, 2014
Detailed Description Technology FP1451 DUAL CHANNEL PWM CONTROL IC WITH SCP/DTC FUNCTION GENERAL DESCRIPTION The FP1451, a 1-chip composed ...
Datasheet PDF File FP1451 PDF File

FP1451
FP1451

Overview
Technology FP1451 DUAL CHANNEL PWM CONTROL IC WITH SCP/DTC FUNCTION GENERAL DESCRIPTION The FP1451, a 1-chip composed of dual open collector transistor pulse-width-modulation control circuits with two error amplifiers and dead-time comparators (DTC), the FP1451 contains a 2.
5V precision voltage reference regulator, under-voltage lockout circuit (UVLO), short circuit protection circuit (SCP), applied to offer space and low cost in many applications such as the DC/DC converter and backlight inverter.
Using few external components, FP1451, a high performance integrated IC, is designed for a control circuit.
The circuit diagram of the typical application example is as below.
FEATURES £» £» £» £» £» £» £» £» £» £» Fixed Reference Voltage: 2.
5V Reference Voltage Precision: 2% (FP1451) Output sink current up to 100mA Low quiescent supply current Wide operating voltage range: 3.
6~40V Variable dead-time control (DTC) UVLO protection function SCP protection function Oscillator Frequency: Max.
500KHz Package: SOP16 / PDIP16 PDIP 16 SOP16 TYPICAL APPLICATION £» £» DC/DC converters for video cameras and TFT LCD monitor Back light CCFL inverter.
Rev0.
5 Apr.
01, 2004 P1/FP1451 Technology FUNCTIONAL BLOCK DIAGRAM 9 11 2 1 FP1451 12 10 14 13 Oscillator 1/2 Vref 15 Reference Voltage PWM COMP 16 R S 3 UVLO R 7 4 PWM COMP 5 6 8 MARK VIEW PIN DESCRIPTION NAME NO.
STATUS DESCRIPTION Connect a Capacitor for Oscillator Connect a Resistor for Oscillator Error Amplifier 1 Non-inverting Input Error Amplifier 1 Inverting Input Error Amplifier 1 Feedback Output Output 1 Dead-Time Comparator Open Collector Output 1 IC Ground IC Power Supply Open Collector Output 2 Output 2 Dead-Time Comparator Error Amplifier 2 Feedback Output Error Amplifier 2 Inverting Input Error Amplifier 2 Non-inverting Input Short Circuit Protection Input 2.
5V Reference Voltage Output 1 2 3 16 15 14 CT RT EA1+ EA1FB1 DTC1 OUT1 GND VCC OUT2 DTC2 FB2 EA2EA2+ SCP VREF 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16...


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