Fairchild FAN7384 service manual

FAN7384

1

14-SOP

Half-Bridge Gate-Drive IC

FAN7384 — Half-Bridge Gate-Drive IC

July 2012

Features

 Floating Channel for Bootstrap Operation to +600V  Typically 250mA/500mA Sourcing/Sinking Current

Driving Capability for Both Channels

 Extended Allowable Negative V

Signal Propagation at VDD=VBS=15V

 Matched Propagation Delay Below 50ns  Output In-Phase with Input Signal  3.3V and 5V Input Logic Compatible  Built-in Shoot-Through Prevention Logic  Built-in Common Mode dv/dt Noise Canceling Circuit  Built-in UVLO Functions for Both Channels  Built-in Cycle-by-Cycle Shutdown Function  Built-in Soft-Off Function  Built-in Bi-Directional Fault Function  Built-in Short-Circuit Protection Function

Swing to -9.8V for

S

Applications

 Motor Inverter Driver  Normal Half-Bridge and Full-Bridge Driver  Switching Mode Power Supply

Description

The FAN7384 is a monolithic half-bridge gate-drive IC designed for high voltage, high speed 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 drivers under high-dv/dt noise circumstances.

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

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

Output drivers typically source/sink 250mA/500mA, respectively, which is suitable for half-bridge and fullbridge applications in motor drive systems.

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

S

Ordering Information

Operating

Temperature

Part Number Package

14-Lead, Small Outline Integrated Circuit (SOIC),

FAN7384MX

Note:

1. The device passed wave soldering test by JESD22A-111.

(1)

Non-JEDEC, .150 Inch Narrow Body, 225SOP

Range Packing Method

-40°C to +125°C Tape & Reel

Typical Application Diagrams

U

V

W

3-Phase Motor Controller

V

U

HO

V

S

LO

V

B

V

DD

V

SL

LIN

HIN

HO

LO

LIN

HIN

HO

LO

LIN

HIN

UU UL

VU

UL

WU WL

V

DC

V

CC

CSC

SD SD SD

FO FO FO

GND

GND GND

V

DD

V

DD

V

SL

V

S

V

B

V

SL

V

S

V

B

FAN7384 Rev.03

FAN7384

Forward

V

DD

V

SL

HIN

M

Reverse

DC Motor

Controller

PHA

PHB

LIN

FAN7384

FAULT

HO

CSC

LO

HO

V

S

CSC

V

B

LO

HIN

FO

SD

FAN7384

SHUTDOWN

R

PULLUP

GND

300K

V

DC

V

CC

V

SL

V

DD

V

B

V

S

FAN7384 Rev.02

Figure 1. 3-Phase Motor Drive Application

FAN7384 — Half-Bridge Gate-Drive IC

Figure 2. DC Motor Drive Application

Internal Block Diagram

3

CSC

V

B

HO

HS(ON/OFF)

LS(ON/OFF)

1

5

2SD

SCHMITT

TRIGGER INPUT

SHOOT-THROUGH

PREVENTION

CONTROL LOGIC

6

0.5V

PULSE

GENERATOR

NOISE

CANCELLER

UVLO

14

12

R

R S

Q

DRIVER

V

S

DRIVER

DELAY

SOFT-OFF

FAULT LOGIC

8

4

9

13

7

V

DD

LO

V

SL

FO

GND

LIN

HIN

I

SOFT

GND/V

SL

LEVEL SHIFTER

UVLO

V

DD

_UVLO

V

DD

_UVLO

ONE-SHOT

TRIGGER

ONE-SHOT

TRIGGER

FAN7384 Rev.03

FAN7384 — Half-Bridge Gate-Drive IC

Figure 3. Functional Block Diagram

Pin Configuration

FAN7384 Rev.00

CSC

FO

GND

LO

NC

FAN7384

LIN

V

DD

V

S

HO

V

B

HIN

V

SL

NC

1

2

3

4

5

6

7

14

13

12

11

10

9

8

SD

FAN7384 — Half-Bridge Gate-Drive IC

Figure 4. Pin Configuration (Top View)

Pin Definitions

Pin # Name Description

1 LIN Logic Input for low-side gate driver 2SD 3 HIN Logic Input for high-side gate driver 4V

DD

5 FO Bi-direction fault pin with open drain 6 CSC Short-circuit current detection input 7 GND Ground 8V

SL

9 LO Low-side gate driver output 10 NC Not connection 11 NC Not connection 12 V

S

13 HO High-side gate driver output 14 V

B

Shutdown control input with active low

Low-side power supply voltage

Low-side supply offset voltage

High-side floating supply offset voltage

High-side floating supply voltage

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

IN

V

CSC

V

FO

/dt Allowable offset voltage slew rate 50 V/ns

dV

S

(2)(3)(4)

P

D



JA

T

J

T

S

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 V

S

High-side floating supply voltage V High-side floating output voltage VS-0.3 VB+0.3 V Low-side and logic-fixed supply voltage -0.3 25 V Logic input voltage (HIN, LIN, SD)-0.3V Current sense input voltage -0.3 VDD+0.3 V Fault output voltage -0.3 VDD+0.3 V

Power dissipation 1.0 W Thermal resistance, junction-to-ambient 110 C/W Junction temperature +150 °C Storage temperature -55 +150 °C

under any circumstances.

D

=25°C, unless otherwise specified.

A

VB-25 VB+0.3 V

B

-0.3 625 V

+0.3 V

DD

FAN7384 — 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

V

FO

T

A

High-side floating supply voltage VS+13 VS+20 V High-side floating supply offset voltage 6-V

DD

600 V Supply voltage 13 20 V High-side output voltage VS VBV Low-side output voltage GND V Logic input voltage (HIN, LIN, SD)GND V

DD

V

V Fault output voltage -0.3 VDD+0.3 V Ambient temperature -40 +125 °C

Electrical Characteristics

V

BIAS (VDD

The VO and IO parameters are referenced to VS and GND and are applicable to the respective outputs HO and LO.

Symbol Characteristics Condition Min. Typ. Max. Unit

LOW SIDE POWER SUPPLY SECTION

I I

V

DDUV+

V

DDUV-

V

DDHYS

BOOTSTRAPPED POWER SUPPLY SECTION

V

BSUV+

V

BSUV-

V

BSHYS

I

GATE DRIVER OUTPUT SECTION

V V

V

SL

SHUTDOWN CONTROL SECTION (SD

SD

LOGIC INPUT SECTION (HIN, LIN)

V

INHYS

, VBS) = 15.0V, TA = 25C, unless otherwise specified. The VIN and IIN parameters are referenced to GND.

QDD

PDD

Quiescent VDD supply current V Operating VDD supply current f VDD supply under-voltage positive going

threshold VDD supply under-voltage negative going

threshold VDD supply under-voltage lockout

hysteresis

VBS supply under-voltage positive going threshold

VBS supply under-voltage negative going threshold

VBS supply under-voltage lockout hysteresis

I

QBS PBS

I

I V

Offset supply leakage current VB=VS=600V 10 A

LK

Quiescent VBS supply current V Operating VBS supply current f

High-level output voltage, V

OH

Low-level output voltage, V

OL

Output HIGH short-circuit pulse current VO=0V, VIN=5V with PW<10µs 200 250 mA

O+

Output LOW short-circuit pulsed current VO=15V, VIN=0V with PW<10µs 420 500 mA

O-

Allowable negative VS pin voltage for IN

S

signal propagation to H

-GND VSL-GND/GND-V

BIAS-VO

O

voltage endurability -7.0 7.0 V

SL

=0V or 5V 600 800 A

LIN

=20kHz, rms value 9 50 1300 A

LIN

V

=Sweep 10.9 11.9 12.9 V

DD

=Sweep 10.4 11.4 12.4 V

V

DD

=Sweep 0.5 V

V

DD

V

=Sweep 10.6 11.5 12.4 V

BS

=Sweep 10.1 11.0 11.9 V

V

BS

=Sweep 0.5 V

V

BS

=0V or 5V 50 90 A

HIN

=20kHz, rms value 400 600 A

HIN

IO=0mA (No Load) 100 mV IO=0mA (No Load) 100 mV

-9.8 -7.0 V

)

+ Shutdown "1" input voltage 1.2 V

- Shutdown "0" input voltage 2.5 V

V

Logic "1" input voltage 2.5 V

IH

Logic "0" input voltage 1.2 V

IL

Logic input hysteresis voltage 0.5 V

I

IN+

Logic "1" input bias current VIN=5V 101520A Logic "0" input bias current VIN=0V 2.0 A

IN-

FAN7384 — Half-Bridge Gate-Drive IC

Fairchild FAN7384 service manual

Specifications and Main Features

Frequently Asked Questions

User Manual