APW7073 Datasheet | Anpec Electronics Coropration

Features - Single 12V Power Supply Required - 0.6V Reference with 1% Accuracy - Shutdown and Soft-Start Function - Programmable Frequency Range from 50 k Hz to 1000k Hz - Voltage Mode PWM Control Design - Up to 100% Duty Cycle - Under-Voltage Protection (UVP) - Over-Current Protection (OCP) - SOP-14 Package - Lead Free and Green Devices Available (Ro HS pliant) Typical Application Circuit 12V RFS ROCSET VIN L VOUT General Description The APW7073 is a voltage mode, synchronous PWM controller which drives dual N-channel MOSFETs. The device integrates all of the control, monitoring and protecting functions into a single package, provides one controlled power output with under-voltage and over-current protections. The APW7073 provides excellent regulation for output load variation. The internal 0.6V temperature-pensated reference voltage is designed to meet the requirement of low output voltage applications. The device includes a 200k Hz free-running triangle-wave oscillator that is adjustable from 50k Hz to 1000k Hz. The APW7073 has been equipped with excellent protection functions: POR, OCP, and UVP. The Power-On-Reset (POR) circuit can monitor the VCC, EN, and OCSET voltage to make sure the supply voltage exceeds their threshold voltage while the controller is running. The Over-Current Protection (OCP) monitors the output current by using the voltage drop across the upper MOSFET’s R . When the output current reaches the trip point, the DS(ON) controller will run the soft-start function until the fault events are removed. The Under-Voltage Protection (UVP) monitors the voltage at FB pin (V ) for short-circuit FB protection. When the V is less than 50% of V , the FB REF controller will shutdown the IC directly. Applications - Graphic Cards Ordering and Marking Information Assembly Material Handling Code Temperature Range Package Code Package Code K : SOP - 14 Operating Ambient Temperature Range E : -20 to 70°C Handling Code TR : Tape &...