Fairchild FAN73833 service manual

FAN73833 Half-Bridge Gate-Drive IC

FAN73833 — Half-Bridge Gate-Drive IC

May 2008

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

 3.3V and 5V Input Logic Compatible  Outputs in Phase with Input Signals  Built-in UVLO Functions for Both Channels  Built-in Shoot-Through Prevention Circuit  Built-in Common-Mode dv/dt Noise Canceling Circuit  Internal Dead-Time: 400ns Typical

Swing to -9.8V for

S

Applications

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

Description

The FAN73833 is a half-bridge gate-drive IC 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.

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

S

8-SOP

Ordering Information

Operating

Part Number Package

FAN73833M

FAN73833MX Tape & Reel

For Fairchild’s definition of “green” Eco Status, please visit: http://www.fairchildsemi.com/company/green/rohs_green.html.

8-SOP -40°C to +125°C RoHS

Temperature Range Eco Status Packing Method

Tube

Typical Application Circuit

FAN73833 — Half-Bridge Gate-Drive IC

V

DD

LIN

HIN

Internal Block Diagram

SCHMITT

TRIGGER INPUT

2

HIN

LIN

1

100K

SHOOT-THOUGH

100K

PREVENTION

DEAD TIME

{ 400ns }

BOOT

D

BOOT

V

HO

V

LO

8

B

7

C

BOOT

6

S

5

1

2

3

4

R

LIN

HIN

V

DD

COM

Figure 1. Application Circuit for Half-Bridge

GENERATOR

PULSE

HS(ON/OFF)

LS(ON/OFF)

NOISE

CANCELLER

UVLO

R S

DELAY

Up to 600V

R

Q

DRIVER

Load

8

7

6

3

5

V

HO

VS

V

LO

B

DD

COM

4

Figure 2. Functional Block Diagram

Pin Configuration

FAN73833 — Half-Bridge Gate-Drive IC

1

LIN

2

HIN

3

V

DD

COM

4

Figure 3. Pin Configuration (Top View)

FAN73833

8

7

6

5

Pin Definitions

Pin # Name Description

1 LIN Logic Input for Low-Side Driver 2 HIN Logic Input for High-Side Driver 3V 4 COM Logic Ground and Low-Side Driver Return 5 LO Low-Side Driver Output 6V 7 HO High-Side Driver Output 8V

DD

S

B

Low-Side Supply Voltage

High-Side Floating Supply Return

High-Side Floating Supply

V

HO

V

LO

B

S

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

COM Logic Ground and Low-side Driver Return V

/dt Allowable Offset Voltage Slew Rate 50 V/ns

dV

S

P

D

θ

JA

T

J

T

STG

Notes:

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

2. 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

3. Do not exceed P

High-side Offset Voltage VB-25 VB+0.3 V High-side Floating Supply Voltage -0.3 625.0 V High-side Floating Output Voltage HO VS-0.3 VB+0.3 V Low-side and Logic-fixed Supply Voltage -0.3 25.0 V Low-side Output Voltage LO -0.3 VDD+0.3 V Logic Input Voltage (HIN/LIN) -0.3 VDD+0.3 V

Power Dissipation

(1)(2)(3)

Thermal Resistance, Junction-to-Ambient 200 °C/W Junction Temperature +150 °C Storage Temperature -55 +150 °C

under any circumstances.

D

=25°C, unless otherwise specified.

A

-25 VDD+0.3 V

DD

0.625 W

FAN73833 — 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 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 COM V Logic Input Voltage (HIN/LIN) COM V

V

DD DD

B

V V V

Ambient Temperature -40 +125 °C