L6571中文资料带振荡器的高压半桥驱动器数据手册ST规格书

描述 Description

The device is a high voltage half bridge driver with built in oscillator. The frequency of the oscillator can be programmed using external resistor and capacitor. The internal circuitry of the device allows it to be driven also by external logic signal.

The output drivers are designed to drive external n-channel power MOSFET and IGBT. The internal logic assures a dead time to avoid cross-conduction of the power devices.

Two version are available: L6571A and L6571B. They differ in the internal dead time: 1.25µs and 0.72µs (typ.)

特性 Features

• ESD PROTECTION
• dV/dt IMMUNITY UP TO ±50V/ns
• PROGRAMMABLE OSCILLATOR FREQUENCY
• UNDER VOLTAGE LOCKOUT WITH HYSTERESIS
• HIGH VOLTAGE RAIL UP TO 600V
• 15.6V ZENER CLAMP ON VS
• BCD OFF LINE TECHNOLOGY
• VERY LOW START UP CURRENT: 150µA
• DEAD TIME 1.25µs (L6571A) or 0.72µs (L6571B)
• DRIVER CURRENT CAPABILITY: SINK CURRENT = 270mASOURCE CURRENT = 170mA

简介

L6571属于集成电路（IC）的栅极驱动器。由ST制造生产的L6571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。