Fairchild FAN73932 service manual

FAN73932 Half-Bridge Gate Drive IC

FAN73932 — Half-Bridge Gate Drive IC

February 2010

Features

 Floating Channel for Bootstrap Operation to +600V  Typically 2.5A/2.5A Sourcing/Sinking Current Driving

Capability

 Extended Allowable Negative V

Signal Propagation at V

 High-Side Output in Phase of IN Input Signal  3.3V and 5V Input Logic Compatible  Matched Propagation Delay for Both Channels  Built-in Shutdown Function  Built-in UVLO Functions for Both Channels  Built-in Common-Mode dv/dt Noise Canceling Circuit  Internal 400ns Minimum Dead-Time

BS

Swing to -9.8V for

S

=15V

Applications

 High-Speed Power MOSFET and IGBT Gate Driver  Induction Heating  High-Power DC-DC Converter  Synchronous Step-Down Converter  Motor Drive Inverter

Description

The FAN73932 is a half-bridge, gate-drive IC with shutdown and dead-time functions which can drive highspeed MOSFETs and IGBTs that operate up to +600V. It has a buffered output stage with all NMOS transistors designed for high pulse current driving capability and minimum cross-conduction.

Fairchild’s high-voltage process and common-mode noise canceling techniques provide stable operation of the high-side driver under high dv/dt noise circumstances. An advanced level-shift circuit offers high-side gate driver operation up to V V

=15V.

BS

The UVLO circuit prevents malfunction when V

are lower than the specified threshold voltage.

V

BS

The high-current and low-output voltage drop feature makes this device suitable for all kinds of half- and fullbridge inverters, like motor drive inverter, switching mode power supply, induction heating, and high-power DC-DC converter applications.

8-SOP

=-9.8V (typical) for

S

DD

and

Ordering Information

Operating

Part Number Package

FAN73932M

FAN73932MX Tape & Reel

For Fairchild’s definition of 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 Diagrams

FAN73932 — Half-Bridge Gate Drive IC

+15V

PWM IC

Control

PWM

Shutdown

IN

1

2

SD

3

COM

4

LO

V

HO

8

B

7

C

BOOT

D

R

BOOT

+15V

V

6

S

5

DD

Figure 1. Typical Application Circuit

Up to 600V

Load

Internal Block Diagram

SD

1

5V

2

TRIGGER INPUT

200K

SHOOT THOUGH

SCHMITT

PREVENTION

DEAD-TIME

{ 400ns }

HS(ON/OFF)

LS(ON/OFF)

GENERATOR

PULSE

Figure 2. Functional Block Diagram

NOISE

CANCELLER

UVLO

R S

DELAY

8

V

B

DRIVER

HO

R

Q

7

6IN

V

S

5

V

DD

DRIVER

4

LO

3

COM

Pin Configuration

FAN73932 — Half-Bridge Gate Drive IC

1

IN

2

SD

COM

3

LO

4

Figure 3. Pin Configuration (Top View)

FAN73932

Pin Definitions

Pin # Name Description

1 IN Logic Input for High-Side and Low-Side Gate Driver Output, In-Phase with HO 2SD 3 COM Ground 4 LO Low-Side Driver Return 5V 6V 7 HO High-Side Driver Output 8V

DD

S

B

Logic Input for Shutdown

Supply Voltage High-Voltage Floating Supply Return

High-Side Floating Supply

8

V

B

7

HO

6

V

S

5

V

DD

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

B

V

S

V

HO

V

LO

V

DD

V

IN

V

SD

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 Floating Supply Voltage -0.3 625.0 V High-Side Floating Offset Voltage VB-25.0 VB+0.3 V High-Side Floating Output Voltage VS-0.3 VB+0.3 V Low-Side Output Voltage -0.3 VDD+0.3 V Low-Side and Logic Fixed Supply Voltage -0.3 25.0 V Logic Input Voltage (IN) -0.3 VDD+0.3 V Logic Input Voltage (SD)-0.35.5V

Power Dissipation

(1, 2, 3)

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

under any circumstances.

D

=25°C unless otherwise specified.

A

-25.0 VDD+0.3 V

DD

0.625 W

FAN73932 — 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

HO

V

DD

V

LO

V

IN

V

SD

T

A

Note:

4. Shutdown (SD

High-Side Floating Supply Voltage VS+10 VS+20 V High-Side Floating Supply Offset Voltage 6-V High-Side Output Voltage V

DD

S

600 V

V

B

V Low-Side and Logic Fixed Supply Voltage 10 20 V Low-Side Output Voltage COM V Logic Input Voltage (IN) COM V Logic Input Voltage (SD)

(4)

COM 5 V

DD DD

V

Operating Ambient Temperature -40 +125 °C

) input is internally clamped with 5.2V.

Electrical Characteristics

V

BIAS(VDD

referenced to COM and are applicable to the respective input leads: IN and SD referenced to COM and are applicable to the respective output leads: HO and LO.

Symbol Parameter Test Condition Min. Typ. Max. Unit

POWER SUPPLY SECTION

BOOTSTRAPPED SUPPLY SECTION

V V

V

INPUT LOGIC SECTION

V

SDCLAMP

GATE DRIVER OUTPUT SECTION

Note:

5 These parameters guaranteed by design.

, VBS)=15.0V, COM=0V, and TA = 25°C, unless otherwise specified. The VIN and IIN parameters are

. The VO and IO parameters are

=0V, SD=5V

I

QDD

I

QBS

I

PDD

I

PBS

I

SD

I

LK

DDUV+ BSUV+

DDUVBSUV-

DDUVH-

BSUVH

V

IH

V

IL

I

IN+

I

IN-

R

IN

Quiescent VDD Supply Current Quiescent VBS Supply Current

Operating VDD Supply Current

Operating VBS Supply Current Shutdown mode Supply Current SD=0V, SD=5V 400 800 µA

Offset Supply Leakage Current

VDD and VBS Supply Under-Voltage Positive Going Threshold Voltage

VDD and VBS Supply Under-Voltage Negative Going Threshold Voltage

VDD and VBS Supply Under-Voltage Lockout Hysteresis Voltage

Logic “1” Input Voltage for HO & Logic “0” for LO 2.5 V Logic “0” Input Voltage for HO & Logic “1” for LO 0.8 V Logic Input High Bias Current

Logic Input Low Bias Current Logic Input Pull-Down Resistance 200 KΩ

V

IN

=0V or 5V, SD=5V

V

IN

f

=20KHz, No Load,

IN

SD

=5V

C

=1nF, fIN=20KHz, rms,

L

SD

=5V

=600V

V

B=VS

VDD =VBS=Sweep

VDD=VBS=Sweep

=5V, SD=0V

V

IN

=0V, SD=5V

V

IN

Shutdown (SD) Input Clamping Voltage 5.0 5.5 V

+ Shutdown (SD) input Positive-Going Threshold 2.5 V

SD

- Shutdown (SD) input Negative-Going Threshold 0.8 V

SD

R

PSD

V V

I

O+

I

V

Shutdown (SD) Input Pull-Up Resistance 200 KΩ

High-level Output Voltage (V

OH

Low-level Output Voltage No Load 100 mV

OL

Output High, Short-Circuit Pulsed Current Output Low, Short-Circuit Pulsed Current

O-

Allowable Negative VS Pin Voltage for IN Signal

S

Propagation to HO

- VO) No Load 1.5 V

BIAS

(5)

VHO=0V, VIN=5V, PW ≤10µs VHO=15V,VIN=0V, PW

(5)

≤10µs

320 700 μA

50 120 μA

700 1300 μA

420 800 μA

8910V

7.4 8.4 9.4 V

0.6 V

25 60 μA

2.0 2.5 A

-9.8 -7.0 V

10 μA

3 μA

FAN73932 — Half-Bridge Gate Drive IC

Fairchild FAN73932 service manual

Specifications and Main Features

Frequently Asked Questions

User Manual