FAN7085MX_GF085 - ON SEMICONDUCTOR

To learn more about ON Semiconductor, please visit our website at

www.onsemi.com

Please note: As part of the Fairchild Semiconductor integration, some of the Fairchild orderable part numbers

will need to change in order to meet ON Semiconductor’s system requirements. Since the ON Semiconductor

product management systems do not have the ability to manage part nomenclature that utilizes an underscore

(_), the underscore (_) in the Fairchild part numbers will be changed to a dash (-). This document may contain

device numbers with an underscore (_). Please check the ON Semiconductor website to verify the updated

device numbers. The most current and up-to-date ordering information can be found at www.onsemi.com. Please

email any questions regarding the system integration to Fairchild_questions@onsemi.com.

Is Now Part of

ON Semiconductor and the ON Semiconductor logo are trademarks of Semiconductor Components Industries, LLC dba ON Semiconductor or its subsidiaries in the United States and/or other countries. ON Semiconductor owns the rights to a number

of patents, trademarks, copyrights, trade secrets, and other intellectual property. A listing of ON Semiconductor’s product/patent coverage may be accessed at www.onsemi.com/site/pdf/Patent-Marking.pdf. ON Semiconductor reserves the right

to make changes without further notice to any products herein. ON Semiconductor makes no warranty, representation or guarantee regarding the suitability of its products for any particular purpose, nor does ON Semiconductor assume any liability

arising out of the application or use of any product or circuit, and speciﬁcally disclaims any and all liability, including without limitation special, consequential or incidental damages. Buyer is responsible for its products and applications using ON

Semiconductor products, including compliance with all laws, regulations and safety requirements or standards, regardless of any support or applications information provided by ON Semiconductor. “Typical” parameters which may be provided in ON

Semiconductor data sheets and/or speciﬁcations can and do vary in different applications and actual performance may vary over time. All operating parameters, including “Typicals” must be validated for each customer application by customer’s

technical experts. ON Semiconductor does not convey any license under its patent rights nor the rights of others. ON Semiconductor products are not designed, intended, or authorized for use as a critical component in life support systems or any FDA

Class 3 medical devices or medical devices with a same or similar classiﬁcation in a foreign jurisdiction or any devices intended for implantation in the human body. Should Buyer purchase or use ON Semiconductor products for any such unintended

or unauthorized application, Buyer shall indemnify and hold ON Semiconductor and its ofﬁcers, employees, subsidiaries, afﬁliates, and distributors harmless against all claims, costs, damages, and expenses, and reasonable attorney fees arising out

of, directly or indirectly, any claim of personal injury or death associated with such unintended or unauthorized use, even if such claim alleges that ON Semiconductor was negligent regarding the design or manufacture of the part. ON Semiconductor

is an Equal Opportunity/Afﬁrmative Action Employer. This literature is subject to all applicable copyright laws and is not for resale in any manner.

November 2014

FAN7085_GF085 Rev. 1.0.2

FAN7085_GF085 High Side Gate Driver with Recharge FET

FAN7085_GF085

High Side Gate Driver with Recharge FET

Features

• Qualified to AEC Q100

• Floating channel designed for bootstrap operation fully oper-

ational up to 300V.

• Tolerance to negative transient voltage on VS pin

• dv/dt immune.

• Gate drive supply range from 4.5V to 20V

• Under-voltage lockout

• CMOS Schmitt-triggered inputs with pull-down and pull-up

• High side output out of phase with input (Inverted input)

• Reset input

• Internal recharge FET for bootstrap refresh

Typical Applications

• Diesel and gasoline injectors/valves

• MOSFET-and IGBT high side driver applications



For Fairchild’s definition of “green” Eco Status, please visit:

http://www.fairchildsemi.com/company/green/rohs_green.html

Description

The FAN7085_GF085 is a high-side gate drive IC with reset

input and built-in recharge FET. It is designed for high voltage

and high speed driving of MOSFET or IGBT, which operates up

to 300V. Fairchild's high-voltage process and common-mode

noise cancellation technique provide stable operation in the

high side driver under high-dV/dt noise circumstances. Logic

input is compatible with standard CMOS outputs. The UVLO cir-

cuits prevent from malfunction when VCC and VBS are lower

than the specified threshold voltage. It is available with space

saving SOIC-8 Package. Minimum source and sink current

capability of output driver is 250mA and 250mA. Built-in

recharge FET to refresh bootstrap circuit is very useful for circuit

topology requiring switches on low and high side of load.

SOIC-8

Ordering Information

Device Package Operating

Temp.

FAN7085M_GF085 SOIC-8 -40 C ~ 125 C

FAN7085MX_GF085 SOIC-8 -40 C ~ 125 C

X : Tape & Reel type

FAN7085_GF085 Rev. 1.0.2

FAN7085_GF085 High Side Gate Driver with Recharge FET

Block Diagrams

VCC Under Voltage

Reset VCC to GND

Logic

Pulse

Filter

Level Shifter

OFF

Delay

Under

Voltage Reset

VB to VS

Pulse Filter

Flip Flop

Brake before

make

RESET-

IN-

GND

Recharge Path

Pin Assignments

VCC

GND

RESET VS

Pin Definitions

Pin Number Pin Name I/O Pin Function Description

1VCC PDriver supply voltage, typically 5V

2IN- IDriver control signal input (Negative Logic)

3GND PGround

4RESET- IDriver enable input signal (Negative Logic)

5VS PHigh side floating offset for MOSFET Source connection

6NC -No connection (No Bond wire)

7HO AHigh side drive output for MOSFET Gate connection

8VB PDriver output stage supply

FAN7085_GF085 Rev. 1.0.2

FAN7085_GF085 High Side Gate Driver with Recharge FET

Absolute Maximum Ratings

Absolute Maximum Ratings indicate sustained limits beyond which damage to the device may occur. All voltage parameters are abso-

lute voltages referenced to GND.

Parameter Symbol Min. Max. Unit

High side floating supply voltage VBS -0.3 25 V

High side driver output stage voltage

Neg. transient: 0.5 ms, external MOSFET off

VB-5 325 V

High side floating supply offset voltage

Neg. transient 0.2 us

Vs -25 300 V

High side floating output voltage VHO VS-0.3 VB+0.3 V

Supply voltage VCC -0.3 25 V

Input voltage for IN- VIN -0.3 Vcc+0.3 V

Input voltage for RESET- VRES -0.3 Vcc+0.3 V

Power Dissipation 1) Pd 0.625 W

Thermal resistance, junction to ambient 1) Rthja 200 C/W

Electrostatic discharge voltage

(Human Body Model)

VESD 1.5K V

Charge device model VCDM 500 V

Junction Temperature Tj 150 C

Storage Temperature TS-55 150 C

Note: 1) The thermal resistance and power dissipation rating are measured bellow conditions;

JESD51-2: Integrated Circuit Thermal Test Method Environmental Conditions - Natural condition(StillAir)

JESD51-3: Low Effective Thermal Conductivity Test Board for Leaded Surface Mount Package

Recommended Operating Conditions

For proper operation the device should be used within the recommended conditions

Parameter Symbol Min. Max. Unit

High side floating supply voltage(DC)

Transient:-10V@ 0.2 us

VBVS+4.5 VS+20 V

High side floating supply offset voltage(DC)

@VBS=7V

VS-3 300 V

High side floating supply offset voltage(Transient)

0.2us @VBS<25V

VS-25 300 V

High side floating output voltage VHO Vs VB V

Allowable offset voltage Slew Rate 1) dv/dt -50 V/ns

Supply voltage for logic part VCC 4.5 20 V

Input voltage for IN- VIN 0Vcc V

Input voltage for RESET- VRESET 0Vcc V

Switching frequency 2) Fs 200K Hz

Minimum low input width 3) tIN(low,min) 560 -ns

Minimum high input width 3) tIN(high,min) 60 -ns

Minimum operating voltage of VB related to GND VB(MIN)4) 4 - V

Ambient temperature Ta-40 125 C

.-40°C <= Ta <= 125°C

Note: 1) Guaranteed by design.

2) Duty = 0.5, VBS >=7V

3) Guaranteed by design. Pulse widths below the specified values, may be ignored. Output will either follow the input signal or will ignore it.

No false output state is guaranteed when minimum input width is smaller than tin

4) Guaranteed by design

FAN7085_GF085 Rev. 1.0.2

FAN7085_GF085 High Side Gate Driver with Recharge FET

Statics Electrical Characteristics

Unless otherwise specified, -40°C <= Ta <= 125°C, VCC = 5V, VBS = 7V, VS = 0V, VRESET = 5V, RL = 50, CL = 2.5nF.

Parameter Symbol Conditions Min. Typ. Max. Unit

VCC and VBS Supply Characteristics

VCC and VBS supply under voltage

positive going threshold

VCCUV+

VBSUV+

Vcc and VBS rising from 0V -3.7 4.3 V

VCC and VBS supply under voltage

negative going threshold

VCCUV-

VBSUV-

Vcc and VBS dropping from 5V 2.8 3.4 - V

VCC and VBS under voltage hysteresis VCCUVH

VBSUVH

-0.02 0.3 - V

Under voltage lockout response time tduvcc

tduvbs

VCC: 6.5V->2.4V or 2.4V->6.5V

VBS: 6.5V->2.4V or 2.4V->6.5V

0.5

Offset supply leakage current ILK VB=VS=300V - - 200 uA

Quiescent Vcc supply current IQCC Vcc=20V - - 500 uA

Quiescent VBS supply current IQBS1 Static mode,

VBS=7V, VIN=0 or 5V

100 uA

Quiescent VBS supply current IQBS2 Static mode,

VBS=16V, VIN=0 or 5V

200 uA

VBS drop due to output turn-on

(Design guaranty)

VBS VBS=7V, Cbs=1uF, tdIG-IN =3uS,

tTEST=100uS

210 mV

Input Characteristics

High logic level input voltage for IN- VIH 0.6VCC - - V

Low logic level input voltage for IN- VIL - - 0.28VCC V

Low logic level input bias current for IN- IIN- VIN=0 525 60 uA

High logic level input bias current for IN- IIN+ VIN=5V - - 5 uA

Full up resistance at IN RIN 83 200 1000 

High logic level input voltage for RESET- VRH 0.6Vcc - - V

Low logic level input voltage for RESET- VRL 0.28Vcc V

High logic level input current for RESET- IRES+ VRESET=5V 525 60 uA

Low logic level input bias current for RESET- IRES- VRESET=0 5uA

Full down resistance at RESET- RRES 83 200 1000 

Output characteristics

High level output voltage, VB - VHO VOH IO=0 - - 0.1 V

Low level output voltage, VHO-GND VOL IO=0 - - 0.1 V

Peak output source current IO+ VIN=5V 250 450 -mA

Peak output sink current IO- VIN=0 250 450 -mA

Equivalent output resistance ROP 15.5 28 

RON 15.5 28 

Recharge Characteristics

Recharge TR turn-on propagation delay Ton_rech 47.9 9.8 us

Recharge TR turn-off propagation delay Toff_rech 0.2 0.4 us

Recharge TR on-state voltage drop VRECH Is=1mA, VIN=5V @125C1.2 V

Dead Time Characteristics

High side turn-off to recharge gate turn-on DTHOFF Vcc=5V, VS=7V 47.8 9.8 us

Recharge gate turn-off to high side turn-on DTHON Vcc=5V, VS=7V 0.1 0.4 0.7 us

Note: The input parameter are referenced to GND. The VO and IO parameters are referenced to GND.

FAN7085_GF085 Rev. 1.0.2

FAN7085_GF085 High Side Gate Driver with Recharge FET

Dynamic Electrical Characteristics

Unless otherwise specified, -40°C <= Ta <= 125°C, VCC = 5V, VBS = 7V, VS = 0V, VRESET = 5V, RL = 50, CL = 2.5nF.

Parameter Symbol Conditions Min. Typ. Max. Unit

Input-to-output turn-on propagation delay tplh 50% input level to 10% output level,

VS = 0V

0.56 1us

Input-to-output turn-off propagation delay tphl 50% input level to 90% output level

VS = 0V

-0.15 0.5 us

RESET-to-output turn-off propagation delay tphl_res 50% input level to 90% output level -0.17 0.5 us

RESET-to-output turn-on propagation delay tplh_res 50% input level to 10% output level -0.56 1us

Output rising time tr1 Tj=25C - 65 200 ns

tr2 -400 ns

tr3 Tj=25C,VBS=16V 65 200 ns

tr4 VBS=16V -400 ns

Output falling time tf1 Tj=25C - 25 200 ns

tf2 -300 ns

tf3 Tj=25C,VBS=16V 25 200 ns

tf4 VBS=16V -300 ns

FAN7085_GF085 Rev. 1.0.2

FAN7085_GF085 High Side Gate Driver with Recharge FET

Application Information

1. Logic Tables

VCC VBS RESET- IN- Ho RechFET

< VCCUVLO- X X X OFF ON

X X LOW XOFF ON

X X X HIGH OFF ON

> VCCUVLO+ > VBSUVLO+ HIGH LOW ON OFF

> VCCUVLO+ < VBSUVLO- HIGH LOW OFF OFF

Notes:

X means independent from signal

IN-=LOW indicates that the high side NMOS is ON

IN-=HIGH indicates that the high side NMOS is OFF

RechFET =ON indicates that the recharge MOSFET is ON

RechFET =OFF indicates that the recharge MOSFET is OFF

FAN7085_GF085 Rev. 1.0.2

FAN7085_GF085 High Side Gate Driver with Recharge FET

Typical Application Circuit

VCC

IN-

GND

RESET-

VCC

D1 Up to 300V

Load

1. Typical Application Circuit

VCC

IN-

GND

RESET-

C2 C1

From Charge Pump Voltage Source

Load

GND

From LS Driver

2. Application Example

FAN7085_GF085 Rev. 1.0.2

FAN7085_GF085 High Side Gate Driver with Recharge FET

Input-Output Waveforms

Toff_rech Ton_rech

tphl

IN-

RESET-

VHO

Recharge tplh

10%

90%90%

10%

tr tf

Figure.1 Input and Output Timing Diagram and Switching Time Waveform Definition

1. Input/Output Timing Diagrams

2. Reset Timing Diagrams

tphl_res

tplh_res

IN-

RESET-

VHO

Figure.2 Reset and Output Timing Diagram

FAN7085_GF085 Rev. 1.0.2

FAN7085_GF085 High Side Gate Driver with Recharge FET

3.VB Drop Voltage Diagram

VBdrop

IN-

RESET-

VB-VS

Brake before make

VCC

IN-

GND

RESET-

50R

2n5

Figure3.b VB Drop Voltage Test Circuit

Figure3.a VB Drop Voltage Diagram

4.Recommendation Min. Short Pulse Width

Figure 4a.Short Pulse Width Test Circuit and Pulse Width Waveform

Figure 4b. Abnormal Output Waveform with short pulse width

Figure 4c. Recommendation of pulse width Output Waveform

Bat1

VCC

RESET

N.C

COM

Bat2

0.1uF

FAN7085

IN 60%

28%

Tpulse =560nS

Less than

430nS Pulse

Width

142KHz

HO Abnormal Output

Recommended

pulse width 560nS

142KHz

FAN7085_GF085 Rev. 1.0.2

FAN7085_GF085 High Side Gate Driver with Recharge FET

Performance Graphs

4.4 4.7 5.0 5.3 5.6 5.9 6.2 6.5

2.2

2.4

2.6

2.8

3.0

3.2

Typ.

Vinth+ (V)

Vsupply (V)

Figure 5a. Positive IN and RESET Threshold vs VCC Supply Figure 5b. Negative IN and RESET Threshold vs VCC Supply

Figure6b. Output Source Current vs Temperature

Figure 7a. Turn-On Propagation Delay Time vs Temperature Figure 7b. Turn-Off Propagation Delay Time vs Temperature

Figure6a. Output Sink Current vs VBS Supply

VBS=7V, RL=50, CL=2.5nF

4.4 4.7 5.0 5.3 5.6 5.9 6.2 6.5

1.8

2.0

2.2

2.4

2.6

Typ.

Vinth- (V)

Vsupply (V)

5101520

400

800

1200

1600

2000

125oC

Output Sink Cureent (mA)

VBS(V)

-40oC

-50 0 50 100 150

300

350

400

450

500

Typ.

Output Source Cureent (mA)

Temperature (oC)

-50 0 50 100 150

500

530

560

590

620

650

Turn-on Propagation Delay (ns)

Temperature(oC)

Typ.

-50 0 50 100 150

100

150

200

250

Turn-off Propagation Delay (ns)

Temperature (oC)

Typ.

VBS=7V, RL=50, CL=2.5nF

VCC=5V, VBS=7VVCC=5V

VCC=5V,VBS=7V, RL=50, CL=2.5nFVCC=5V,VBS=7V, RL=50, CL=2.5nF

This performance graphs based on ambient temperature -40C ~125C

-50 0 50 100 150

100

150

200

250

Typ.

RES-to-Output Turn-off Propagation Delay (ns)

Temperature (oC)

-50 0 50 100 150

500

550

600

650

700

Typ.

RES-to-Output Turn-on Propagation Delay (ns)

Temperature (oC)

Figure 8a. RES to Output Turn-On Propagation Delay vs Temperature Figure 8b. RES to Output Turn-Off Propagation Delay vs Temperatur

Figure 10. Logic “1” RESET Input Current vs Temperature

Figure 11a. VBS Under Voltage Threshold(+) vs Temperature Figure 11b. VBS Under Voltage Threshold(-) vs Temperature

Figure 9. Logic “0” IN Input Current vs Temperature

VCC=5V, VBS=7V, RL=50, CL=2.5nF VCC=5V, VBS=7V, RL=50, CL=2.5nF

-50 0 50 100 150

Logic "0" Input Current (uA)

Temperature (oC)

Typ.

-50 0 50 100 150

Typ.

Logic "1" RES Input Current (uA)

Temperature (oC)

VCC=5V, RL=50, CL=2.5nF VCC=5V, RL=50, CL=2.5nF

-50 0 50 100 150

2.0

2.5

3.0

3.5

4.0

4.5

5.0

Min.

Max.

Typ.

VBS Supply Voltage(V)

Temperature(oC)

-50 0 50 100 150

2.0

2.5

3.0

3.5

4.0

4.5

5.0

VBS Supply Voltage(V)

Temperature(oC)

Max.

Typ.

Min.

FAN7085_GF085 Rev. 1.0.2

FAN7085_GF085 High Side Gate Driver with Recharge FET

Figure 12a. VCC Under Voltage Threshold(+) vs Temperature Figure 12b. VCC Under Voltage Threshold(-) vs Temperature

Figure 13. Recharge FET Turn-on Delay time

Figure 15. Recharge FET I-V curve

Figure 14. Recharge FET Turn-off Delay time

VBS=7V

-50 0 50 100 150

2.0

2.5

3.0

3.5

4.0

4.5

5.0

VCC Supply Voltage(V)

Temperature(oC)

Max.

Typ.

Min.

-50 0 50 100 150

2.0

2.5

3.0

3.5

4.0

4.5

5.0

VCC Supply Voltage(V)

Temperature(oC)

Max.

Typ.

Min.

-50 0 50 100 150

Typ.

Recharge Transistor Turn-on Propagation

Delay (us)

Temperature(oC)

-50 0 50 100 150

140

180

220

260

300

Typ.

Recharge Gate Turn-off Propagation

Delay (ns)

Temperature (oC)

0.4 0.6 0.8 1.0 1.2

0.2

0.6

1.0

1.4

1.8

I (mA)

V (V)

Typ.

-50 0 50 100 150

Typ.

High Side Turn-off to Recharge Gate

Turn-on (us)

Temperature (oC)

Figure 16. High Side Turn-off to Recharge FET turn-on VS Temperature

VCC=5v, VBS=7, VRL=50, CL=2.5nF VCC=5v, VBS=7V, RL=50, CL=2.5nF

VCC=5v, VBS=7V, RL=50, CL=2.5nF VCC=5v, VBS=7V, RL=50, CL=2.5nF

FAN7085_GF085 Rev. 1.0.2

FAN7085_GF085 High Side Gate Driver with Recharge FET

www.onsemi.com

ON Semiconductor and are trademarks of Semiconductor Components Industries, LLC dba ON Semiconductor or its subsidiaries in the United States and/or other countries.

ON Semiconductor owns the rights to a number of patents, trademarks, copyrights, trade secrets, and other intellectual property. A listing of ON Semiconductor’s product/patent

coverage may be accessed at www.onsemi.com/site/pdf/Patent−Marking.pdf. ON Semiconductor reserves the right to make changes without further notice to any products herein.

ON Semiconductor makes no warranty, representation or guarantee regarding the suitability of its products for any particular purpose, nor does ON Semiconductor assume any liability

arising out of the application or use of any product or circuit, and specifically disclaims any and all liability, including without limitation special, consequential or incidental damages.

Buyer is responsible for its products and applications using ON Semiconductor products, including compliance with all laws, regulations and safety requirements or standards,

regardless of any support or applications information provided by ON Semiconductor. “Typical” parameters which may be provided in ON Semiconductor data sheets and/or

specifications can and do vary in different applications and actual performance may vary over time. All operating parameters, including “Typicals” must be validated for each customer

application by customer’s technical experts. ON Semiconductor does not convey any license under its patent rights nor the rights of others. ON Semiconductor products are not

designed, intended, or authorized for use as a critical component in life support systems or any FDA Class 3 medical devices or medical devices with a same or similar classification

in a foreign jurisdiction or any devices intended for implantation in the human body. Should Buyer purchase or use ON Semiconductor products for any such unintended or unauthorized

application, Buyer shall indemnify and hold ON Semiconductor and its officers, employees, subsidiaries, affiliates, and distributors harmless against all claims, costs, damages, and

expenses, and reasonable attorney fees arising out of, directly or indirectly, any claim of personal injury or death associated with such unintended or unauthorized use, even if such

claim alleges that ON Semiconductor was negligent regarding the design or manufacture of the part. ON Semiconductor is an Equal Opportunity/Affirmative Action Employer. This

literature is subject to all applicable copyright laws and is not for resale in any manner.

PUBLICATION ORDERING INFORMATION

N. American Technical Support: 800−282−9855 Toll Free

USA/Canada

Europe, Middle East and Africa Technical Support:

Phone: 421 33 790 2910

Japan Customer Focus Center

Phone: 81−3−5817−1050

www.onsemi.com

LITERATURE FULFILLMENT:

Literature Distribution Center for ON Semiconductor

19521 E. 32nd Pkwy, Aurora, Colorado 80011 USA

Phone: 303−675−2175 or 800−344−3860 Toll Free USA/Canada

Fax: 303−675−2176 or 800−344−3867 Toll Free USA/Canada

Email: orderlit@onsemi.com

ON Semiconductor Website: www.onsemi.com

Order Literature: http://www.onsemi.com/orderlit

For additional information, please contact your local

Sales Representative