CS51220 Datasheet (ON Semiconductor) - Feed Forward Voltage Mode PWM Controller

CS51220, Feed Forward Voltage Mode PWM Controller

PACKAGE PIN # 16 Lead SO Narrow 1 2 3 4 5 PIN SYMBOL VO GND VCC VREF ISET FUNCTION Logic output connecting to external gate driver.

Ground.

Supply Voltage.

3.3 V reference voltage output.

Voltage at this pin sets pulse *by *pulse overcurrent threshold.

When the ISENSE exceeds ISET for

www.DataSheet4U.com CS51220 Feed Forward Voltage Mode PWM Controller with Programmable Synchronization CS51220 is a single output PWM Controller with switching frequency up to 500 kHz.

The feed forward voltage mode control provides excellent line regulation for wide input range.

This PWM controller has a synchronization output allowing programmable phase delay.

For overcurrent protection, the “soft hiccup” technique effectively limits the output current with maximum flexibility.

In addition, th

CS51220 Features

* as: soft start, pulse

* by

* pulse current limit, programmable foldback current limit, volt

* second clamping, maximum duty cycle, overvoltage and undervoltage protection, and synchronization input. The CS51220 is available in 16 SO narrow surface mount package. http://onsemi.com