HM2730中文资料华之美半导体数据手册PDF规格书

Overview

HM2730 is a high-precision, low-cost PWM controlled non-isolated step-down driver chip. The chip uses a dedicated current control loop structure and high Dynamic response detection circuit.HM2730 Built-in high-voltage power MOS, which greatly reduces the system cost. HM27300 The built-in voltage detection circuit greatly improves the accuracy of the output voltage. At the same time, the chip adopts different working modes under different loads to improve The overall efficiency of the system. +0 With frequency jitter function and drive soft turn-on function, reducing the influence of EMI. It has a soft start function and integrates a variety of protection functions, which greatly enhances the reliability of the system. Protection functions include undervoltage protection, week by week Periodic overcurrent protection, output overload protection, output short circuit protection, output overvoltage protection and chip overtemperature protection functions.

FEATURES

◆ Low standby power consumption: <0.1W

◆ Current loop control mode

◆ High-precision constant pressure control

◆ High dynamic response

◆ Soft start circuit

◆ Frequency jitter function and drive soft turn-on function to optimize EMI

◆ Cycle by cycle overcurrent protection

◆ Leading edge blanking function

◆ Undervoltage lockout (UVLO)

◆ Over temperature protection function