Fairchild FAN73832 service manual

FAN73832

Half-Bridge Gate-Drive IC

FAN73832 Half-Bridge Gate-Drive IC

February 2007

Features

 Floating Channel for Bootstrap Operation to +600V  Typically 350mA/650mA Sourcing/Sinking Current

Driving Capability for Both Channels

 Extended Allowable Negative V

Signal Propagation at VDD=VBS=15V

 High-Side Output in Phase of IN Signal  Built-in UVLO Functions for Both Channels  Built-in Common-Mode dv/dt Noise Canceling Circuit  Internal 400ns Minimum Dead-Time at R  Programmable Turn-on Delay-Time Control

(Dead-Time)

Swing to -9.8V for

S

=20KΩ

DT

Applications

 SMPS  Motor Drive Inverter  Fluorescent Lamp Ballast  HID Ballast

Description

The FAN73832 is a half-bridge, gate-drive IC with shutdown and programmable dead-time control functions for driving MOSFETs and IGBTs, operating up to +600V.

Fairchild’s high-voltage process and common-mode noise canceling technique provide stable operation of high-side driver under high dv/dt noise circumstances.

An advanced level-shift circuit allows high-side gate driver operation up to V

The UVLO circuits for both channels prevent malfunction when VDD and VBS are lower than the specified threshold voltage.

Output drivers typically source/sink 350mA/650mA, respectively, which is suitable for all kinds of half- and full-bridge inverters.

8-SOP

=-9.8V (typical) for VBS=15V.

S

8-DIP

Ordering Information

Part Number Package Pb-Free Operating Temperature Range Packing Method

FAN73832M

FAN73832MX

FAN73832N 8-DIP Tube

Note:

1. These devices passed wave soldering test by JESD22A-111.

(1)

8-SOP

Yes -40°C ~ 125°C

Tube

Tape & Reel

Typical Application Diagrams

V

DD

PWM

PWM IC

Control

Shutdown

Figure 1. Application Circuit for Half-Bridge Switching Power Supply

R

DT

1

2

3

4

R

BOOT

FAN73832

IN

GND

DT/ SD

V

DD

FAN73832 Half-Bridge Gate-Drive IC

D

BOOT

HO

LO

V

B

V

S

V

DC

8

7

C

BOOT

6

5

FAN73832 Rev.01

V

DC

V

CC

PHA

PHB

DC Motor

Controller

SD

V

DD

B

HO

IN

V

S

FAN73832

DT/

SD

LO

GND

Figure 2. Application Circuit for Full-Bridge DC Motor Driver

V

DD

IN

FAN73832

DT/

SD

GND

V

B

HO

V

S

Forward

M

Reverse

LO

FAN73832 Rev.01

Internal Block Diagram

1

IN

SCHMITT

TRIGGER INPUT

HS(ON/OFF)

FAN73832 Half-Bridge Gate-Drive IC

8

V

B

UVLO

GEN ERATOR

PULS E

NOISE

CANCELLER

UVLO

R

S

DRI VER

7

R

Q

HO

6

V

S

V

4

DD

DT/

SD

R

DTINT

3

DEAD - TIME

CONTROL

LS(ON/OFF)

DELAY

DRI VER

LO

5

2

GND

FAN73832 Rev:00

Figure 3. Functional Block Diagram of FAN73832

Pin Assignments

FAN73832 Half-Bridge Gate-Drive IC

IN

1

GND

DT/SD

Figure 4. Pin Configuration (Top View)

2

3

V

4

DD

FAN73832

FAN73832 Rev:00

Pin Definitions

Pin # Name Description

1 IN Logic Input 2 GND Ground 3DT/SD 4V 5 LO Low-Side Driver Output 6V 7 HO High-Side Driver Output 8V

DD

S

B

Dead-Time Control with External Resistor and Shutdown Function Low-Side Supply Voltage

High-Side Floating Supply Return

High-Side Floating Supply

V

8

B

HO

7

V

6

S

LO

5

Absolute Maximum Ratings

Stresses exceeding the absolute maximum ratings may damage the device. The device may not function or be operable above the recommended operating conditions and stressing the parts to these levels is not recommended. In addition, extended exposure to stresses above the recommended operating cond itions may affect device reliability. The absolute maximum ratings are stress ratings only. T

Symbol Parameter Min. Max. Unit

V

S

V

B

V

HO

V

DD

V

LO

V

IN

V

DT/SD

GND Logic ground V

/dt Allowable offset voltage slew rate 50 V/ns

dV

S

(2)(3)(4)

P

D

θ

JA

T

J

T

STG

Notes:

2. Mounted on 76.2 x 114.3 x 1.6mm PCB (FR-4 glass epoxy material).

3. Refer to the following standards: JESD51-2: Integral circuits thermal test method environmental conditions - Natural convection JESD51-3: Low effective thermal conductivity test board for leaded surface mount packages

4. Do not exceed P

High-side offset voltage VB-25 VB+0.3 V High-side floating supply voltage -0.3 625 V High-side floating output voltage HO VS-0.3 VB+0.3 V Low-side and logic-fixed supply voltage -0.3 25 V Low-side output voltage LO -0.3 VDD+0.3 V Logic input voltage (IN) -0.3 VDD+0.3 V Dead-time and shutdown control voltage -0.3 5.0 V

Power dissipation

Thermal resistance, junction-to-ambient

Junction temperature 150 °C Storage temperature 150 °C

under any circumstances.

D

=25°C unless otherwise specified.

A

-25 VDD+0.3 V

DD

8-SOP 0.625 W

8-DIP 1.25

8-SOP 200

8-DIP 100

°C/W

FAN73832 Half-Bridge Gate-Drive IC

Recommended Operating Conditions

The Recommended Operating Conditions table defines the conditions for actual device operation. Recommended operating conditions are specified to ensure optimal perfor mance to the datasheet specifications. Fairchild does not recommend exceeding them or designing to Absolute Maximum Ratings.

Symbol Parameter Condition Min. Max. Unit

V

B

V

S

V

DD

V

HO

V

LO

V

IN

T

A

High-side floating supply voltage VS+15 VS+20 V High-side floating supply offset voltage 6-V

DD

600 V Low-side supply voltage 15 20 V High-side (HO) output voltage V

S

Low-side (LO) output voltage GND V Logic input voltage (IN) GND V

V

B DD DD

Ambient temperature -40 125 °C

V V V