Supertex Inc HV9606
HV9606 Current-Mode PWM Controller with Supervisor
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 *For short duration line loss, supervisor disables soft start if output within tolerance when VIN returns and thus reduces holdup requirements.GENERAL DESCRIPTION
The HV9606 PWM controller allows the design of high efficiency (>90%) power supplies for distributed board mounted power (BMP) applications.