IR2085S数据手册集成电路（IC）的栅极驱动器规格书PDF

描述 Description

The IR2085S is a self-oscillating half-bridge driver IC with 50% duty cycle ideally suited for 36V – 75V halfbridge DC-bus converters.
This product is also suitable for push-pull converters without restriction on input voltage. Each channel frequency is equal to fOSC, which can be set by selecting RT & CT, where fOSC = 1/(2*RT.CT). Dead-time can be controlled through proper selection of CT and can range from 50ns to 200ns. Internal soft-start increases the pulse width during power up and maintains pulse width matching for the high and low outputs throughout the start up cycle. The IR2085S initiates a soft start at power up and after every overcurrent condition. Undervoltage lockout prevents operation if VCC is less than 7.5V.

特性 Features

· Simple primary side control solution to enable half-bridge DC-Bus Converters for 48V distributed systems with reduced component count and board space · Integrated 50% duty cycle oscillator & half-bridge driver IC in a single SO-8 package · Programmable switching frequency with up to 500kHz max per channel · +/- 1A drive current capability optimized for low charge MOSFETs · Adjustable dead-time 50ns – 200ns · Floating channel designed for bootstrap operation up to +100Vdc · High and low side pulse width matching to +/- 25ns · Adjustable overcurrent protection · Undervoltage lockout and internal soft start · Also available Leadfree

简介

IR2085S属于集成电路（IC）的栅极驱动器。由制造生产的IR2085S栅极驱动器栅极驱动器电源管理集成电路 (PMIC) 可用于提供隔离、放大、参考位移、自举或其他必要功能，这些功能可将来自电源转换应用中控制设备的信号连接到电源被控制通过的半导体设备（通常为 FET 或 IGBT）。任何特定设备提供的确切功能各不相同，但与它适合驱动的半导体配置相关。