HF920BGSE-P

HF920B is a flyback regulator with a monolithic, 900V MOSFET. It is an enhanced version of the HF920 with EMI optimization. It provides excellent power regulation with very few external components for AC/DC applications that require high reliability, such as smart meters, large appliances, industrial controls and products powered by AC grids. The HF920B uses peak current control mode to provide excellent transient response and easy loop compensation. When the output power falls below a given level, the regulator enters burst mode. The IC is also optimized to achieve very low power consumption during standby conditions. MPS’s proprietary, 900V, monolithic process enables over-temperature protection (OTP) on the same silicon as the 900V power MOSFET, offering the most precise thermal protection. Typically used in E-meters, industrial controls and large appliances. Available in SOIC8-7A package.

• Monolithic 900V/15ohm MOSFET and high voltage current source
• Programmable switching frequency, up to 150KHz
• Current mode control scheme and frequency jittering
• Low standby power consumption via active burst mode
• Less than 30mW no-Load consumption, frequency doubling mode
• Internal leading-edge blanking (LEB), built-in soft start (SS)
• Internal slope compensation
• External input PRO pin protection with hysteresis and auto-restart recovery
• Short-circuit protection (SCP)
• VCC undervoltage lock-out(UVLO), overload protection (OLP) and overvoltage protection (OVP)

Notes

MPS part numbers ending in "-P" and "-Z" are the same parts. P & Z only indicates reel size.