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L6384E

High-voltage half bridge driver

STMicroelectronics 

L6384E

High-voltage half bridge driver

Features

■ High voltage rail up to 600V

■ dV/dt immunity ±50V/nsec in full temperature

range

■ Driver current capability:

– 400mA source,

– 650mA sink

■ Switching times 50/30 nsec rise/fall with 1nF

load

■ CMOS/TTL Schmitt trigger inputs with

hysteresis and pull down

■ Shut down input

■ Dead time setting

■ Under voltage lock out

■ Integrated bootstrap diode

■ Clamping on VCC

■ SO-8/DIP-8 packages

DIP-8

SO-8

Description

The L6384E is an high-voltage device,

manufactured with the BCD"OFF-LINE"

technology. It has an Half - Bridge Driver structure

that enables to drive N-channel Power MOS or

IGBT. The High Side (Floating) Section is enabled

to work with voltage Rail up to 600V. The Logic

Inputs are CMOS/TTL compatible for ease of

interfacing with controlling devices. Matched

delays between Low and High Side Section

simplify high frequency operation. Dead time

setting can be readily accomplished by means of

an external resistor.

Figure 1. Block diagram

VCC

2

BOOTSTRAP DRIVER

UV

DETECTION

1

IN

VCC

Idt

DT/SD

3

Vthi

DEAD

TIME

LOGIC

8 VBOOT

H.V.

RS

LEVEL

SHIFTER

HVG

DRIVER

7

VCC

6

HVG

OUT

5 LVG

LVG

DRIVER

4 GND

CBOOT

LOAD

D97IN518A

October 2007

Rev 1

1/17

www.st.com

17

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