FEBFSL126MR-H432V1-GEVB: 5V, 12V Green Mode Power Switch

The FEBFSL126MR-H432V1-GEVB integrated pulse width modulator (PWM) and SenseFET is designed for high performance offline switch mode power supplies (SMPS) with minimal external components. The FEBFSL126MR-H432V1-GEVB includes an integrated high voltage power switching regulator that combines an avalanche protected SenseFET with a current mode PWM control block. The integrated PWM controller includes: under voltage lockout (UVLO) protection, leading edge blanking (LEB), frequency generator for EMI attenuation, optimized gate turn on/off driver, thermal shutdown (TSD) protection, and temperature compensated precision current sources for loop compensation and fault protection circuits. The FEBFSL126MR-H432V1-GEVB provides good soft start performance. Compared to discrete MOSFET and controller or RCC switching converter solutions, the FEBFSL126MR-H432V1-GEVB reduces total component count, design size and weight while improving efficiency, productivity and system reliability. The device provides a basic platform that is ideal for designing cost-effective flyback converters. Features and ApplicationsFeaturesLow operating current: 1.8mAUndervoltage lockout (UVLO)Auto-restart modeProtections: overvoltage protection (OVP), overload protection (OLP), output short-circuit protection (OSP), abnormal overcurrent protection (AOCP), internal thermal shutdown with hysteresis (TSD)Built-in soft-start: 15ms pulse-by-pulse current limitInternal startup circuitFixed operating frequency with frequency modulation to attenuate EMIStandby power consumption less than 50mW at 265VAC, no-load condition with burst modeInternal avalanche-protected SenseFET (650V)Adjustable peak current limitThe


FEBFSL126MR-H432V1-GEVB integrated Pulse Width Modulator (PWM) and SenseFET is specifically designed for high-performance offline Switch-Mode Power Supplies (SMPS) with minimal external components. The FEBFSL126MR-H432V1-GEVB includes integrated high-voltage power switching regulators that combine an avalanche-rugged SenseFET with a current-mode PWM control block.

The integrated PWM controller includes: Under-Voltage Lockout (UVLO) protection, Leading-Edge Blanking (LEB), a frequency generator for EMI attenuation, an optimized gate turn-on/turn-off driver, Thermal Shutdown (TSD) protection, and temperature-compensated precision current sources for loop compensation and fault protection circuitry. The FEBFSL126MR-H432V1-GEVB offers good soft-start performance. When compared to a discrete MOSFET and controller or RCC switching converter solution, the FEBFSL126MR-H432V1-GEVB reduces total component count, design size, and weight; while increasing efficiency, productivity, and system reliability. This device provides a basic platform that is well suited for the design of cost-effective flyback converters.
Features and Applications


Features
Low Operating Current: 1.8mA
Under-Voltage Lockout (UVLO)
Auto-Restart Mode
Protections: Over-Voltage Protection (OVP), Overload Protection (OLP), Out put-Short Protection (OSP), Abnormal Over-Current Protection (AOCP), Internal Thermal Shutdown Function with Hysteresis (TSD)
Built-in Soft-Start: 15ms
Pulse-by-Pulse Current Limiting
Internal Startup Circuit
Fixed Operating Frequency with Frequency Modulation for Attenuating EMI
Under 50mW Standby Power Consumption at 265VAC, No-load Condition with Burst Mode
Internal Avalanche-Rugged SenseFET (65 0V)
Adjustable Peak Current Limit