©2005 Fairchild Semiconductor Corporation

www.fairchildsemi.com

Rev. 1.0.0

Features

• Floating Channel Designed For Bootstrapping Operation

To +600V

• Typically 90mA/180mA Sourcing/Sinking Current

Driving Capability For Both Channels

• Common-Mode dv/dt Noise Canceling Circuit

• Extended Allowable Negative VS Swing To -9.8V For

Signal Propagation @ VCC=VBS=15V

• VCC & VBS Supply Range From 10V To 20V

• UVLO Functions For Both Channels

• TTL Compatible Input Logic Threshold Levels

• Matched Propagation Delay Below 50nsec

• Built-in 100nsec Dead-Time Control Function

• Output In-Phase With Input

Typical Applications

• Fluorescent Lamp Ballast

• Compact Fluorescent Lamp Ballast

Description

The FAN7380 is a monolithic half-bridge gate driver IC for

MOSFETs and IGBTs, which operate up to +600V. Fair-

child’s high voltage process and common-mode noise can-

celing technique give stable operation of high-side driver

under high dv/dt noise circumstances. Advanced level shift

circuit allows high-side gate driver operation up to VS=-

9.8V(typ.) for VBS=15V. The input logic level is compatible

with standard TTL series logic gates. The internal shoot-

through protection circuit provides 100nsec dead-time to

prevent output switching devices from both conduction dur-

ing transition periods. UVLO circuits for both channels pre-

vent malfunction when VCC and VBS are lower than the

specified threshold voltage. Output drivers typically source/

sink 90mA/180mA, respectively, which is suitable for the

applications such as fluorescent/compact fluorescent lamp

ballast applications and the systems that require low di/dt

noise.

8SOIC

1

FAN7380

Half-Bridge Gate Driver

(SOURCING/SINKING : 90mA/180mA)

Internal Block Diagram

HO

LO

COM

HIN

LIN

5

6

7

DELAY

LEVEL

SHIFTER

NOISE

CANCELLER

1

4

2

8

3

PULSE

GENERATION

R

S

R

Q

UVLO

UVLO

LOW-SIDE DRIVER

HIGH-SIDE DRIVER