概览
简介
ISL78424、ISL78434 和 ISL78444 是汽车级（AEC-Q100 1 级）高压、高频、半桥 NMOS FET 驱动器，用于驱动高达 70V 半桥拓扑结构的栅极。
该系列半桥驱动器的峰值栅极驱动电流为 3A 拉电流和 4A 灌电流。 ISL78424 和 ISL78444 具有单个三电平 PWM 输入，用于控制两个栅极驱动器。 ISL78434 具有双独立输入，分别用于控制高侧和低侧驱动器。 ISL78424 和 ISL78434 为每个栅极驱动器提供独立的拉电流和灌电流引脚，ISL78444 为每个栅极驱动器提供一个合并的拉电流和灌电流输出引脚。
强大的栅极驱动强度和自适应死区时间（ADT）特性使该系列驱动器能够在高工作频率下切换半桥拓扑中的高电压、低 rDS（ON）功率 FET，同时提供击穿保护并最大限度地降低死区时间开关损耗。
ISL78424、ISL78434 和 ISL78444 采用 14 引脚 HTSSOP 封装，符合 IPC-2221B 的 100V 导体间距。 ISL78444 与 ISL78420 引脚兼容。 所有器件的额定环境温度范围均为 -40°C 至 +140°C。
特性
- 获得专利的栅极检测自适应死区时间控制功能可提供击穿保护并最大限度地减少死区时间
- 独特的三电平 PWM 输入，用于与瑞萨电子多相控制器（例如ISL78225 和 ISL78226）集成
- 3A 拉电流和 4A 灌电流输出电流
- 片内 3Ω 自举 FET 开关
- 采用单个电阻器的可编程死区时间延迟
- 三电平 PWM 输入
- 驱动器输出端具有独立的拉电流/灌电流引脚
- 自举和 VDD 欠压闭锁（UVLO）
- 宽电源电压范围：8V 至 18V
- 自举电源最大电压：100V
- 最大相电压：86V
- 最小相电压：-10V
产品对比
应用
设计和开发
开发板与套件
开发板与套件
Traction Motor Controller Board
This traction motor controller mainly intends to drive motor control for HEV/EV-based applications and these consist of two boards – the controller board which controls...
RL78/F24 的 12V 电机控制评测系统
此款套件用于 RL78/F24（48 引脚）产品的电机控制测估。
此款套件包括一个永磁同步电机 (TG-55N-KA 12V；Tsukasa Electric Co., Ltd)，允许用户在购买后轻松开始评测电机。
模型
ECAD 模块
Schematic symbols, PCB footprints, and 3D CAD models from SamacSys can be found by clicking on products in the Product Options table. If a symbol or model isn't available, it can be requested directly from the website.
Processing table
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视频和培训
48V Auxiliary Inverter Solution
Renesas' 48V Auxiliary Inverter Solution is a complete 48V motor control design using an RH850 microcontroller, power management ICs, and an inductive position sensor. It incorporates 12V/48V dual-domain concept with domain isolation, and is a proof-of-concept covering the recommendations of VDA320.
Video List