DAP002 Datasheet – PWM Controller – DEI

Part Number : DAP002 ( = L5991 )

Function : PWM ( Pulse-Width Modulation ) Controller

Package : SOP 16 Pin

Manufacturers : DEI, ST

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DAP002 datasheet dei

DAP002 PWM Controller

 

Description

This primary controller I.C., developed in BCD60II technology, has been designed to implement off line or DC-DC power supply applications using a fixed frequency current mode control. Based on a standard current mode PWM controller this device includes some features such as programmable soft start, IN/OUT synchronization, disable (to be used for over voltage protection and for power management), precise maximum Duty Cycle Control, 100ns leading edge blanking on current sense, pulse by pulse current limit, overcurrent protection with soft start intervention, and Standby function for oscillator frequency reduction
when the converter is lightly loaded.

Pinout

L5991 DAP002 pinout

Features

1. CURRENT-MODE CONTROL PWM
2. SWITCHINGFREQUENCY UP TO 1MHz
3. LOW START-UP CURRENT (< 120mA)
4. HIGH-CURRENT OUTPUT DRIVE SUITABLE FOR POWERMOSFET (1A)
5. FULLY LATCHED PWM LOGIC WITH DOUBLE PULSE SUPPRESSION
6. PROGRAMMABLE DUTY CYCLE
7. 100%AND50%MAXIMUMDUTY CYCLELIMIT
8. STANDBY FUNCTION
9. PROGRAMMABLE SOFT START
10. PRIMARY OVERCURRENT FAULT DETECTION WITH RE-START DELAY
11. PWMUVLO WITH HYSTERESIS
12. IN/OUT SYNCHRONIZATION
13. LATCHED DISABLE
14. INTERNAL 100ns LEADING EDGE BLANKING OF CURRENT SENSE

Refernece Site

1. http://monitor.espec.ws/section27/topic179114.html

DAP002 Datasheet

 

 


Other data sheets within the file : DAP002TR