General Description

The HV9606 PWM controller allows the design of high efficiency (>90) power supplies for distributed board mounted power (BMP) applications. Due to its high frequency capability it can provide high currents (20A @ 3.3V) with small transformers and due to its low internal operating voltage and current is also able to achieve high efficiencies in low power applications.

特性 Features

? Synchronous Forward, Forward, and Flyback Controller

? Lowest External Parts Count, Smallest Magnetics

? Eliminates Bootstrap Transformer Winding

? Supervisor Circuit Reduces Output Capacitance* up to 40

? Supervisor Circuit Functions as μP Supply Monitor and POR

? 15V to 250V Start-Up Regulator with START/STOP Control

? <1mA Operating, <6μA Standby Input Current

? VDD Powered Operation down to 2.9V

? Charge Pump Gate Drive Supply

? Programmable Soft Start

? Under Voltage Lockout with Programmable Hysteresis

? <50 Duty Cycle Operation

? 15kHz to 400kHz Fixed Frequency PWM Operation

? Fault Tolerant Peer-to-Peer Synchronization

? Precision !1 Band Gap Voltage Reference

? Current Sense Leading Edge Blanking

? Small SSOP-20 Footprint

Applications

? Powered Ethernet and VoIP Terminals

? Cable Modems and Amplifiers

? ISDN Network Terminations, Terminals and Adapters

? Network Equipment

? Servers, PCs and Peripheral Equipment

? Telecommunication Systems and Terminals

? Distributed Board Mounted Power

? Battery Backup Systems

? Portable Power Applications

? Automotive and Heavy Equipment