FAN7371MX - Fairchild Semiconductor Corporation

FAN7371 — High-Current High-Side Gate Drive IC

FAN7371 Rev. 1.0.2

November 2009

FAN7371

High-Current High-Side Gate Drive IC

Features

!Floating Channel for Bootstrap Operation to +600V

!4A/4A Sourcing/Sinking Current Driving Capability

!Common-Mode dv/dt Noise Canceling Circuit

!3.3V and 5V Input Logic Compatible

!Output In-phase with Input Signal

!Under- Voltage Lockout for VBS

!25V Shunt Regulator on VDD and VBS

!8-Lead Small Outline Package (SOP)

Applications

!High-Speed Gate Driver

!Sustaine Switch Driver in PDP Application

!Energy-Recovery Circuit Switch Driver in

PDP Application

!High-Power Buck Converter

!Motor Drive Inverter

Description

The FAN7371 is a monolithic high-side gate drive IC,

which can drive high-speed 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 circum-

stances. An advanced level-shift circuit offers high-side

gate driver operation up to VS=-9.8V (typical) for

VBS=15V.

The UVLO circuit prevents malfunction when VBS is

lower than the specified threshold voltage.

The high-current and low-output voltage drop feature

makes this device suitable for sustaine switch driver and

energy recovery switch driver in the Plasma Display

Panel application, motor drive inverter, switching power

supply, and high-power DC-DC converter applications.

Ordering Information

Note:

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

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

8-SOP

Part Number Package Operating

Temperature Range Eco Status Packing Method

FAN7371M(1)

8-SOP -40°C ~ 125°C RoHS Tube

FAN7371MX(1) Tape & Reel

FAN7371 — High-Current High-Side Gate Drive IC

FAN7371 Rev. 1.0.2 2

Typical Application Diagrams

Figure 1. Floated Bidirectional Switch and Half-Bridge Driver: PDP application

Figure 2. Step-Down (Buck) DC-DC Converter Application

Energy Recovery Circuit Part Sustain Drive Part

DBOOT1

D2

C2

IN1

To Pannel

DBOOT2

CBOOT1

Q1

D1

D3

D4

L1

IN2

15V

Q2

RBOOT1

CBOOT2

VS DBOOT3

IN3

Q3

RBOOT3

CBOOT3

15V

IN4

Q4

R1

R2

R5

R6

C1 C3

R8

R7

R4

R3

FAN7371

VB

IN

GND

HO

VS

NC

1

2

NC

VDD

7

5

6

8

3

4

FAN7371

VB

IN

GND

HO

VS

NC

1

2

NC

VDD

7

5

6

8

3

4

FAN7371

VB

IN

GND

HO

VS

NC

1

2

NC

VDD

7

5

6

8

3

4

FAN7371

VB

IN

GND

HO

VS

NC

1

2

NC

VDD

7

5

6

8

3

4

FAN7371 Rev.03

DBOOT

C2

PWM

CBOOT

C1

D1

L1

15V

RBOOT

R2

FAN7371

VB

IN

GND

HO

VS

NC

VDD

7

5

6

8

2

4

3

1

R1

VIN

VOUT

FAN7371 Rev.01

FAN7371 — High-Current High-Side Gate Drive IC

FAN7371 Rev. 1.0.2 3

Internal Block Diagram

Figure 3. Functional Block Diagram

Pin Configuration

Figure 4. Pin Configuration (Top View)

Pin Definitions

Pin # Name Description

1V

DD Supply Voltage

2 IN Logic Input for High-Side Gate Driver Output

3 NC No Connection

4 GND Ground

5 NC No Connection

6V

SHigh-Voltage Floating Supply Return

7 HO High-Side Driver Output

8V

BHigh-Side Floating Supply

UVLO

PULSE

GENERATOR

VDD

GND

IN

VB

HO

VS

R

SQ

6

7

81

4

2NOISE

CANCELLER

Pins 3 and 5 are no connection.

25V

FAN7371 Rev.04

25V

110K

VDD

Shoot-through current

compensated gate driver

VS

VB

FAN7371

VDD

NC

IN HO

NC

4GND

3

2

1

5

6

7

8

FAN7371 Rev.01

FAN7371 — High-Current High-Side Gate Drive IC

FAN7371 Rev. 1.0.2 4

Absolute Maximum Ratings

Stresses exceeding the absolute maximum ratings may damage the device. The device may not function or be opera-

ble above the recommended operating conditions and stressing the parts to these levels is not recommended. In addi-

tion, extended exposure to stresses above the recommended operating conditions may affect device reliability. The

absolute maximum ratings are stress ratings only. TA=25°C unless otherwise specified.

Notes:

2 This IC contains a shunt regulator on VDD and VBS with a normal breakdown voltage of 25V. Please note that this

supply pin should not be driven by a low-impedance voltage source greater than the VSHUNT specified in the

Electrical Characteristics section

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

4 Refer to the following standards:

JESD51-2: Integral circuits thermal test method environmental conditions, natural convection, and

JESD51-3: Low effective thermal conductivity test board for leaded surface mount packages.

5 Do not exceed power dissipation (PD) under any circumstances.

Recommended Operating Conditions

The Recommended Operating Conditions table defines the conditions for actual device operation. Recommended

operating conditions are specified to ensure optimal performance to the datasheet specifications. Fairchild does not

recommend exceeding them or designing to absolute maximum ratings.

Symbol Characteristics Min. Max. Unit

VSHigh-Side Floating Offset Voltage VB-VSHUNT VB+0.3 V

VBHigh-Side Floating Supply Voltage(2) -0.3 625.0 V

VHO High-Side Floating Output Voltage VS-0.3 VB+0.3 V

VDD Low-Side and Logic Supply Voltage(2) -0.3 VSHUNT V

VIN Logic Input Voltage -0.3 VDD+0.3 V

dVS/dt Allowable Offset Voltage Slew Rate ± 50 V/ns

PDPower Dissipation(3, 4, 5) 0.625 W

θJA Thermal Resistance 200 °C/W

TJJunction Temperature -55 +150 °C

TSTG Storage Temperature -55 +150 °C

TAOperating Ambient Temperature -40 +125 °C

Symbol Parameter Min. Max. Unit

VBS High-Side Floating Supply Voltage VS+10 VS+20 V

VSHigh-Side Floating Supply Offset Voltage 6-VDD 600 V

VHO High-Side Output Voltage VSVBV

VIN Logic Input Voltage GND VDD V

VDD Supply Voltage 10 20 V

FAN7371 — High-Current High-Side Gate Drive IC

FAN7371 Rev. 1.0.2 5

Electrical Characteristics

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

The VO and IO parameters are relative to VS and are applicable to the respective output HO.

Note:

6 These parameters guaranteed by design.

Dynamic Electrical Characteristics

VDD=VBS=15V, GND=0V, CLOAD=1000pF, TA=25°C, unless otherwise specified.

.

Symbol Characteristics Test Condition Min. Typ. Max. Unit

POWER SUPPLY SECTION

IQDD Quiescent VDD Supply Current VIN=0V or 5V 25 70 μA

IPDD Operating VDD Supply Current fIN=20KHz, No Load 35 100 μA

BOOTSTRAPPED SUPPLY SECTION

VBSUV+

VBS Supply Under-Voltage Positive Going

Threshold Voltage VBS=Sweep 8.2 9.2 10.2 V

VBSUV-

VBS Supply Under-Voltage Negative Going

Threshold Voltage VBS=Sweep 7.5 8.5 9.5 V

VBSHYS

VBS Supply Under-Voltage Lockout

Hysteresis Voltage VBS=Sweep 0.7 V

ILK Offset Supply Leakage Current VB=VS=600V 10 μA

IQBS Quiescent VBS Supply Current VIN=0V or 5V 60 120 μA

IPBS Operating VBS Supply Current CLOAD=1nF, fIN=20KHz, rms

Value 1.0 2.8 mA

SHUNT REGULATOR SECTION

VSHUNT

VDD and VBS Shunt Regulator Clamping

Voltage ISHUNT=5mA 24 25 V

INPUT LOGIC SECTION

VIH Logic “1” Input Voltage 2.5 V

VIL Logic “0” Input Voltage 0.8 V

IIN+ Logic Input High Bias Current VIN=5V 45 70 μA

IIN- Logic Input Low Bias Current VIN=0V 2μA

RIN Input Pull-down Resistance 70 110 KΩ

GATE DRIVER OUTPUT SECTION

VOH High Level Output Voltage (VBIAS - VO)No Load 1.2 V

VOL Low Level Output Voltage No Load 30 mV

IO+ Output High, Short-Circuit Pulsed Current(6) VHO=0V, VIN=5V, PW ≤10µs 3.0 4.0 A

IO- Output Low, Short-Circuit Pulsed Current(6) VHO=15V,VIN=0V, PW ≤10µs 3.0 4.0 A

VS

Allowable Negative VS pin Voltage for IN

Signal Propagation to HO -9.8 -7.0 V

Symbol Parameter Conditions Min. Typ. Max. Unit

ton Turn-on Propagation Delay Time VS=0V 150 210 ns

toff Turn-off Propagation Delay Time VS=0V 150 210 ns

trTurn-on Rise Time 25 50 ns

tfTurn-off Fall Time 15 40 ns

FAN7371 — High-Current High-Side Gate Drive IC

FAN7371 Rev. 1.0.2 6

Typical Characteristics

Figure 5. Turn-on Propagation Delay

vs. Temperature

Figure 6. Turn-off Propagation Delay

vs. Temperature

Figure 7. Turn-on Rise Time vs. Temperature Figure 8. Turn-off Fall Time vs. Temperature

Figure 9. Operating VDD Supply Current

vs. Temperature

Figure 10. Operating VBS Supply Current

vs. Temperature

-40-20 0 20406080100120

0

50

100

150

200

250

tON [ns]

Temperature [°C]

-40-20 0 20406080100120

0

50

100

150

200

250

tOFF [ns]

Temperature [°C]

-40 -20 0 20 40 60 80 100 120

0

10

20

30

40

50

tR [ns]

Temperature [°C]

-40-20 0 20406080100120

0

10

20

30

40

50

tF [ns]

Temperature [°C]

-40-20 0 20406080100120

0

20

40

60

80

100

IPDD [μA]

Temperature [°C]

-40-20 0 20406080100120

0.0

0.5

1.0

1.5

2.0

IPBS [mA]

Temperature [°C]

FAN7371 — High-Current High-Side Gate Drive IC

FAN7371 Rev. 1.0.2 7

Typical Characteristics (Continued)

Figure 11. VBS UVLO+ vs. Temperature Figure 12. VBS UVLO- vs. Temperature

Figure 13. Logic High Input Voltage vs. Temperature Figure 14. Logic Low Input Voltage vs. Temperature

Figure 15. Input Pull-Down Resistance

vs.Temperature.

Figure 16. High-Level Output Voltage

vs. Temperature

-40 -20 0 20 40 60 80 100 120

8.0

8.5

9.0

9.5

10.0

VBSUV+ [V]

Temperature [°C]

-40-20 0 20406080100120

7.5

8.0

8.5

9.0

9.5

VBSUV- [V]

Temperature [°C]

-40 -20 0 20 40 60 80 100 120

0.0

0.5

1.0

1.5

2.0

2.5

3.0

VIH [V]

Temperature [°C]

-40-20 0 20406080100120

0.0

0.5

1.0

1.5

2.0

2.5

3.0

VIL [V]

Temperature [°C]

-40-20 0 20406080100120

0

40

80

120

160

200

240

280

RIN [kΩ]

Temperature [°C]

-40 -20 0 20 40 60 80 100 120

0.00

0.25

0.50

0.75

1.00

1.25

1.50

VOH [V]

Temperature [°C]

FAN7371 — High-Current High-Side Gate Drive IC

FAN7371 Rev. 1.0.2 8

Typical Characteristics (Continued)

Figure 17. Output High, Short-Circuit Pulsed Current

vs. Temperature

Figure 18. Output Low, Short-Circuit Pulsed Current

vs. Temperature

Figure 19. Output High, Short-Circuit Pulsed Current

vs. Supply Voltage

Figure 20. Output Low, Short-Circuit Pulsed Current

vs. Supply Voltage

Figure 21. Quiescent VDD Supply Current

vs. Supply Voltage

Figure 22. Quiescent VBS Supply Current

vs. Supply Voltage

-40 -20 0 20 40 60 80 100 120

2.5

3.0

3.5

4.0

4.5

5.0

5.5

6.0

6.5

IO+ [A]

Temperature [°C]

-40-20 0 20406080100120

2.5

3.0

3.5

4.0

4.5

5.0

5.5

6.0

6.5

IO- [A]

Temperature [°C]

10 12 14 16 18 20

2

3

4

5

6

7

IO+ [A]

VBS [V]

10 12 14 16 18 20

2

3

4

5

6

7

IO- [A]

VBS [V]

10 12 14 16 18 20

0

20

40

60

80

25°C

-40°C

IQDD [μA]

Supply Voltage [V]

125°C

10 12 14 16 18 20

0

20

40

60

80

100

120

25°C

-40°C

IQBS [μA]

Supply Voltage [V]

125°C

FAN7371 — High-Current High-Side Gate Drive IC

FAN7371 Rev. 1.0.2 9

Switching Time Definitions

Timing Diagram

Figure 23. Switching Time Test Circuit and Waveform Definitions

0.1µF

VB15V

HO

10µF

1000pF

IN

OUT

50%

90%

50%

ton

10%

trtoff tf

10%

90%

FAN7371

(A) (B)

10nF

15V

10µF

VDD

VS

GND

IN

FAN7371 — High-Current High-Side Gate Drive IC

FAN7371 Rev. 1.0.2 10

Physical Dimensions

Figure 24. 8-Lead Small Outline Package (SOP)

Package drawings are provided as a service to customers considering Fairchild components. Drawings may change in any manner

without notice. Please note the revision and/or date on the drawing and contact a Fairchild Semiconductor representative to verify or

obtain the most recent revision. Package specifications do not expand the terms of Fairchild’s worldwide terms and conditions,

specifically the warranty therein, which covers Fairchild products.

Always visit Fairchild Semiconductor’s online packaging area for the most recent package drawings:

http://www.fairchildsemi.com/packaging/.

8°

0°

SEE DETAIL A

NOTES: UNLESS OTHERWISE SPECIFIED

A) THIS PACKAGE CONFORMS TO JEDEC

MS-012, VARIATION AA, ISSUE C,

B) ALL DIMENSIONS ARE IN MILLIMETERS.

C) DIMENSIONS DO NOT INCLUDE MOLD

FLASH OR BURRS.

D) LANDPATTERN STANDARD: SOIC127P600X175-8M.

E) DRAWING FILENAME: M08AREV13

LAND PATTERN RECOMMENDATION

SEATING PLANE

0.10 C

C

GAGE PLANE

x 45°

DETAIL A

SCALE: 2:1

PIN ONE

INDICATOR

4

8

1

C

MBA0.25

B

5

A

5.60

0.65

1.75

1.27

6.20

5.80

3.81

4.00

3.80

5.00

4.80

(0.33)

1.27

0.51

0.33

0.25

0.10

1.75 MAX

0.25

0.19

0.36

0.50

0.25

R0.10

0.90

0.406 (1.04)

OPTION A - BEVEL EDGE

OPTION B - NO BEVEL EDGE

FAN7371 — High-Current High-Side Gate Drive IC

FAN7371 Rev. 1.0.2 12