APW7065C Ver la hoja de datos (PDF) - Anpec Electronics

Número de pieza

componentes Descripción

Fabricante

APW7065C

Synchronous Buck PWM Controller

Anpec Electronics 

APW7065C

Function Description (Cont.)

Shutdown and Enable

Pulling the COMP voltage to GND by an open drain

transistor, as shown in Typical Application Circuit,

shutdowns the APW7065C PWM controller. In shut-

down mode, the UGATE and LGATE turn off and pull to

PHASE and GND respectively.

Under Voltage Protection

The FB pin is monitored during converter operation by

the internal Under Voltage (UV) comparator. If the FB volt-

age drops below 50% of the reference voltage (50% of

0.8V = 0.4V), a fault signal is internally generated, and the

device turns off both high-side and low-side MOSFET

and the converter’s output is latched to be floating.

Copyright © ANPEC Electronics Corp.

11

Rev. A.2 - Mar., 2008

www.anpec.com.tw

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