MIC38C43YM

MICREL SEMICONDUCTOR MIC38C43YM 芯片, 脉宽调制控制器, 电流模式, 7.6-20V, SOIC-8

General Description

The MIC38C4x are fixed frequency, high performance, current-mode PWM controllers. ’s BiCMOS devices are pin compatible with 384x bipolar devices but feature several improvements.

Features

• Fast 40ns output rise and 30ns output fall times

• –40°C to +85°C temperature range meets UC284x specifications

• High-performance, low-power BiCMOS Process

• Ultralow start-up current 50µA typical

• Low operating current 4mA typical

• CMOS outputs with rail-to-rail swing

• ≥ 500kHz current-mode operation

• Trimmed 5V bandgap reference

• Pin-for-pin compatible with UC3842/3843/3844/3845A

• Trimmed oscillator discharge current

• UVLO with hysteresis

• Low cross-conduction currents