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.

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