(China (Mainland))
Product Summary
The STRW6252 is a current-mode PWM IC that incorporates controller chips. The STRW6252 is manufactured using a proprietary high-voltage BCD process, and avalanche-guaranteed MOSFETs. These elements allow power supply systems designs that are highly reliable and simple, with fewer peripheral components. The STRW6252 also provides Auto-Burst mode operation, which lowers input power requirements at light loads, and improves efficiency over the entire load range and universal-input range. Applicatons include: TV set top box, LCD PC monitor, LCD TV, Printer, scanner and General consumer, PC, and industrial applications requiring SMPS power supply with standby mode.
Parametrics
STRW6252 absolute maximum ratings: (1)Drain Current1 IDpeak: 3.2 A; (2)Maximum Switching Current2 IDMAX: 3.2 A; (3)Single Pulse Avalanche Energy EAS: 62 mJ; (4)S/OCP Terminal Voltage VOCP: –6 to 6 V; (5)FM/ELP Terminal Voltage VFM: –0.3 to 12 V; (6)FM/ELP Terminal Inflow Current IFM: 3 mA; (7)FB Terminal Voltage VFB: –0.3 to 9 V; (8)Controller (MIC) Input Voltage VCC: 0 to 32 V.
Features
STRW6252 features: (1)Overcurrent protection (OCP) with ac input voltage compensation function; no additional peripheral circuits required-minimizes dependency of OCP on ac input; (2)Overload protection (OLP) with integrated timer reduces power stress (temperature rise) at overload condition, requires no peripheral components; (3)Avalanche-guaranteed MOSFET improves device capability of withstanding excess surge voltage, providing a simple surge absorber circuit without breakdown voltage derating; (4)Start-up circuit eliminates the need for a start-up resistor, and helps to reduce input power consumption.
Diagrams
