L6571集成电路（IC）的栅极驱动器规格书PDF中文资料

L6571属于集成电路（IC）的栅极驱动器。由意法半导体集团制造生产的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。

特性 Features

■ High voltage rail up to 600 V

■ BCD off line technology

■ 15.6 V Zener clamp on Vs

■ Driver current capability:

– Sink current = 270 mA

– Source current = 170 mA

■ Very low start up current: 150 mA

■ Undervoltage lockout with hysteresis

■ Programmable oscillator frequency

■ Dead time 1.25 μs (L6571A) or 0.72 μs

(L6571B)

■ dV/dt immunity up to ±50 V/ns

■ ESD protection

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

nchannel power MOSFET and IGBT. The internal

logic assures a dead time to avoid crossconduction of the power devices.

Two version are available: L6571A and L6571B.

They differ in the internal dead time: 1.25μs and

0.72 μs (typ.)