FAIRCHILD FAN7085MX_GF085

FAN7085_GF085
High Side Gate Driver with Recharge FET
Features
Description
• Qualified to AEC Q100
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 circuits 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.
• Floating channel designed for bootstrap operation fully operational 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
SOIC-8
• 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
Ordering Information
Device
Package
Operating
Temp.
SOIC-8
-40 C ~ 125 C
FAN7085MX_GF085 SOIC-8
-40 C ~ 125 C
FAN7085M_GF085
X : Tape & Reel type
©2012 Fairchild Semiconductor Corporation
FAN7085_GF085 Rev. 1.0.1
1
www.fairchildsemi.com
FAN7085_GF085 High Side Gate Driver with Recharge FET
September 2012
VB
Under
Voltage Reset
VB to VS
Pulse Filter
Flip Flop
Brake before
make
HO
Under Voltage
Reset VCC to GND
RESET-
VS
Level Shifter
ON
Logic
Pulse
Filter
IN-
Delay
Level Shifter
OFF
Recharge Path
VCC
GND
Pin Assignments
1
2
3
4
VCC
VB
IN-
HO
GND
NC
RESET- VS
8
7
6
5
Pin Definitions
Pin Number
Pin Name
I/O
Pin Function Description
1
VCC
P
Driver supply voltage, typically 5V
2
IN-
I
Driver control signal input (Negative Logic)
3
GND
P
Ground
4
RESET-
I
Driver enable input signal (Negative Logic)
5
VS
P
High side floating offset for MOSFET Source connection
6
NC
-
No connection (No Bond wire)
7
HO
A
High side drive output for MOSFET Gate connection
8
VB
P
Driver output stage supply
©2012 Fairchild Semiconductor Corporation
FAN7085_GF085 Rev. 1.0.1
2
www.fairchildsemi.com
FAN7085_GF085 High Side Gate Driver with Recharge FET
Block Diagrams
Absolute Maximum Ratings indicate sustained limits beyond which damage to the device may occur. All voltage parameters are absolute 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
VB
-5
325
V
Vs
-25
300
V
High side floating output voltage
VHO
VS-0.3
VB+0.3
V
Supply voltage
VCC
-0.3
25
V
VIN
-0.3
Vcc+0.3
V
VRES
-0.3
Vcc+0.3
V
Neg. transient: 0.5 ms, external MOSFET off
High side floating supply offset voltage
Neg. transient 0.2 us
Input voltage for INInput voltage for RESET1)
Pd
0.625
W
Thermal resistance, junction to ambient 1)
Rthja
200
C/W
Electrostatic discharge voltage
(Human Body Model)
VESD
1.5K
Charge device model
VCDM
500
Junction Temperature
Tj
Storage Temperature
TS
Power Dissipation
V
V
-55
150
C
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.-40°C <= Ta <= 125°C
Parameter
Symbol
Min.
Max.
Unit
VB
VS+4.5
VS+20
V
VS
-3
300
V
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
0
Vcc
V
VRESET
0
High side floating supply voltage(DC)
Transient:[email protected] 0.2 us
High side floating supply offset voltage(DC)
@VBS=7V
High side floating supply offset voltage(Transient)
0.2us @VBS<25V
Input voltage for RESETSwitching frequency 2)
Fs
Vcc
V
200K
Hz
Minimum low input width 3)
tIN(low,min)
1000
-
ns
Minimum high input width 3)
tIN(high,min)
60
-
ns
Minimum operating voltage of VB related to GND
Ambient temperature
V
B(MIN)4)
Ta
4
-
V
-40
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
©2012 Fairchild Semiconductor Corporation
FAN7085_GF085 Rev. 1.0.1
3
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FAN7085_GF085 High Side Gate Driver with Recharge FET
Absolute Maximum Ratings
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 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
VCCUVVBSUV-
Vcc and VBS dropping from 5V
2.8
3.4
-
V
VCC and VBS under voltage hysteresis
VCCUVH
VBSUVH
-
0.02
0.3
-
V
tduvcc
tduvbs
VCC: 6.5V->2.4V or 2.4V->6.5V
VBS: 6.5V->2.4V or 2.4V->6.5V
0.5
0.5
20
20
us
us
ILK
VB=VS=300V
-
-
200
uA
-
-
VCC and VBS Supply Characteristics
Under voltage lockout response time
Offset supply leakage current
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
5
25
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
0.28Vcc
V
5
25
60
uA
5
uA
83
200
1000

-
-
0.1
V
Low logic level input voltage for RESET-
VRL
High logic level input current for RESET-
IRES+
VRESET=5V
Low logic level input bias current for RESET-
IRES-
VRESET=0
Full down resistance at RESET-
RRES
Output characteristics
High level output voltage, VB - VHO
VOH
Low level output voltage, VHO-GND
VOL
IO=0
-
-
0.1
V
Peak output source current
IO+
VIN=5V
250
450
-
mA
IO-
VIN=0
250
Peak output sink current
Equivalent output resistance
IO=0
450
-
mA
ROP
15.5
28

RON
15.5
28

7.9
9.8
us
0.2
0.4
us
1.2
V
Recharge Characteristics
Recharge TR turn-on propagation delay
Ton_rech
Recharge TR turn-off propagation delay
Toff_rech
Recharge TR on-state voltage drop
VRECH
Is=1mA, VIN=5V @125C
High side turn-off to recharge gate turn-on
DTHOFF
Vcc=5V, VS=7V
4
7.8
9.8
us
Recharge gate turn-off to high side turn-on
DTHON
Vcc=5V, VS=7V
0.1
0.4
0.7
us
4
Dead Time Characteristics
Note: The input parameter are referenced to GND. The VO and IO parameters are referenced to GND.
©2012 Fairchild Semiconductor Corporation
FAN7085_GF085 Rev. 1.0.1
4
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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
Input-to-output turn-on propagation delay
tplh
50% input level to 10% output level,
VS = 0V
Input-to-output turn-off propagation delay
tphl
50% input level to 90% output level
VS = 0V
RESET-to-output turn-off propagation delay
tphl_res
RESET-to-output turn-on propagation delay
tplh_res
tr1
Output rising time
Min. Typ. Max. Unit
0.56
1
us
-
0.15
0.5
us
50% input level to 90% output level
-
0.17
0.5
us
50% input level to 10% output level
-
0.56
1
us
Tj=25C
-
65
200
ns
-
400
ns
tr2
Output falling time
tr3
Tj=25C,VBS=16V
65
200
ns
tr4
VBS=16V
-
400
ns
tf1
Tj=25C
25
200
ns
-
300
ns
tf2
©2012 Fairchild Semiconductor Corporation
FAN7085_GF085 Rev. 1.0.1
-
tf3
Tj=25C,VBS=16V
25
200
ns
tf4
VBS=16V
-
300
ns
5
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FAN7085_GF085 High Side Gate Driver with Recharge FET
Dynamic Electrical Characteristics
1. Logic Tables
VCC
VBS
RESET-
IN-
Ho
RechFET
< VCCUVLOX
X
X
X
OFF
ON
X
LOW
X
OFF
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
©2012 Fairchild Semiconductor Corporation
FAN7085_GF085 Rev. 1.0.1
6
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FAN7085_GF085 High Side Gate Driver with Recharge FET
Application Information
FAN7085_GF085 High Side Gate Driver with Recharge FET
Typical Application Circuit
1. Typical Application Circuit
Up to 300V
D1
VCC
VCC
VB
IN-
HO
GND
NC
RESET-
VS
R1
C3
R2
C2
Load
C1
2. Application Example
From Charge Pump
Voltage Source
D5
5V
C2
VCC
VB
IN-
HO
GND
NC
RESET-
VS
R1
S1
C3
C1
R2
Load
D3
R3
From LS Driver
C4
S2
D4
R4
GND
©2012 Fairchild Semiconductor Corporation
FAN7085_GF085 Rev. 1.0.1
7
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1. Input/Output Timing Diagrams
IN-
RESET-
90%
90%
VS
10%
10%
tr
VHO
tf
tphl
Recharge
tplh
Toff_rech
Ton_rech
Figure.1 Input and Output Timing Diagram and Switching Time Waveform Definition
2. Reset Timing Diagrams
IN-
RESET-
VHO
tplh_res
tphl_res
Figure.2 Reset and Output Timing Diagram
©2012 Fairchild Semiconductor Corporation
FAN7085_GF085 Rev. 1.0.1
8
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FAN7085_GF085 High Side Gate Driver with Recharge FET
Input-Output Waveforms
Ig
INIg
RESET-
VCC
VB
IN-
HO
GND
NC
RESET-
VS
50R
1u
2n5
7V
VBdrop
VB-VS
Figure3.b VB Drop Voltage Test Circuit
Brake before make
Figure3.a VB Drop Voltage Diagram
©2012 Fairchild Semiconductor Corporation
FAN7085_GF085 Rev. 1.0.1
9
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FAN7085_GF085 High Side Gate Driver with Recharge FET
3.VB Drop Voltage Diagram
This performance graphs based on ambient temperature -40C ~125C
2.6
3.2
VBS=7V, RL=50, CL=2.5nF
VBS=7V, RL=50, CL=2.5nF
2.4
2.8
Vinth- (V)
Vinth+ (V)
3.0
2.6
2.2
2.0
2.4
Typ.
Typ.
2.2
4.4
4.7
5.0
5.3
5.6
5.9
6.2
1.8
4.4
6.5
4.7
5.0
Figure 4a. Positive IN and RESET Threshold vs VCC Supply
1600
Output Source Cureent (mA)
Output Sink Cureent (mA)
5.9
6.2
6.5
500
VCC=5V
o
-40 C
1200
o
125 C
800
400
5
10
15
VCC=5V, VBS=7V
Typ.
450
400
350
300
-50
20
0
50
100
150
o
VBS(V)
Temperature ( C)
Figure5a. Output Sink Current vs VBS Supply
Figure5b. Output Source Current vs Temperature
650
250
Turn-off Propagation Delay (ns)
Turn-on Propagation Delay (ns)
5.6
Figure 4b. Negative IN and RESET Threshold vs VCC Supply
2000
0
5.3
Vsupply (V)
Vsupply (V)
VCC=5V,VBS=7V, RL=50, CL=2.5nF
620
590
560
Typ.
530
500
-50
0
50
100
o
150
Typ.
0
50
100
150
o
Temperature ( C)
Figure 6b. Turn-Off Propagation Delay Time vs Temperature
Figure 6a. Turn-On Propagation Delay Time vs Temperature
FAN7085_GF085 Rev. 1.0.1
200
100
-50
150
Temperature( C)
©2012 Fairchild Semiconductor Corporation
VCC=5V,VBS=7V, RL=50, CL=2.5nF
10
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FAN7085_GF085 High Side Gate Driver with Recharge FET
Performance Graphs
RES-to-Output Turn-off Propagation Delay (ns)
RES-to-Output Turn-on Propagation Delay (ns)
VCC=5V, VBS=7V, RL=50, CL=2.5nF
650
600
550
Typ.
500
-50
0
50
100
150
250
VCC=5V, VBS=7V, RL=50, CL=2.5nF
200
150
Typ.
100
-50
0
Figure 7a. RES to Output Turn-On Propagation Delay vs Temperature
50
Logic "1" RES Input Current (uA)
VCC=5V, RL=50, CL=2.5nF
Logic "0" Input Current (uA)
150
Figure 7b. RES to Output Turn-Off Propagation Delay vs Temperatur
50
40
Typ.
30
20
10
0
-50
0
50
100
VCC=5V, RL=50, CL=2.5nF
40
30
Typ.
20
10
0
-50
150
0
o
50
100
150
o
Temperature ( C)
Temperature ( C)
Figure 8. Logic “0” IN Input Current vs Temperature
Figure 9. Logic “1” RESET Input Current vs Temperature
5.0
5.0
4.5
VBS Supply Voltage(V)
4.5
VBS Supply Voltage(V)
100
Temperature ( C)
Temperature ( C)
Max.
4.0
Typ.
3.5
3.0
50
o
o
Min.
0
50
100
Typ.
3.0
Min.
2.0
-50
150
50
100
150
o
Temperature( C)
Figure 10a. VBS Under Voltage Threshold(+) vs Temperature
©2012 Fairchild Semiconductor Corporation
0
Temperature( C)
o
FAN7085_GF085 Rev. 1.0.1
3.5
Max.
2.5
2.5
2.0
-50
4.0
Figure 10b. VBS Under Voltage Threshold(-) vs Temperature
11
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FAN7085_GF085 High Side Gate Driver with Recharge FET
700
5.0
4.5
Max.
VCC Supply Voltage(V)
VCC Supply Voltage(V)
4.5
4.0
Typ.
3.5
Min.
3.0
2.5
2.0
-50
0
50
100
4.0
3.5
Max.
Typ.
3.0
Min.
2.5
2.0
-50
150
0
50
o
Recharge Gate Turn-off Propagation
Delay (ns)
Recharge Transistor Turn-on Propagation
Delay (us)
Figure 11b. VCC Under Voltage Threshold(-) vs Temperature
10
VCC=5v, VBS=7, VRL=50, CL=2.5nF
Typ.
6
4
-50
0
50
100
300
VBS=7V
VCC=5v, VBS=7V, RL=50, CL=2.5nF
260
220
180
Typ.
140
-50
150
0
o
Temperature( C)
High Side Turn-off to Recharge Gate
Turn-on (us)
I (mA)
1.4
1.0
Typ.
0.8
1.0
Figure 14. Recharge FET I-V curve
FAN7085_GF085 Rev. 1.0.1
10
VCC=5v, VBS=7V, RL=50, CL=2.5nF
8
Typ.
6
4
-50
1.2
0
50
100
150
o
Temperature ( C)
V (V)
©2012 Fairchild Semiconductor Corporation
150
Figure 12. Recharge FET Turn-off Delay time
VCC=5v, VBS=7V, RL=50, CL=2.5nF
0.6
100
o
1.8
0.2
0.4
50
Temperature ( C)
Figure 12. Recharge FET Turn-on Delay time
0.6
150
Temperature( C)
Figure 11a. VCC Under Voltage Threshold(+) vs Temperature
8
100
o
Temperature( C)
Figure 15. High Side Turn-off to Recharge FET turn-on VS Temperature
12
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FAN7085_GF085 High Side Gate Driver with Recharge FET
5.0
5.00
4.80
A
0.65
3.81
8
5
6.20
5.80
PIN ONE
INDICATOR
B
1.75
4.00
3.80
1
5.60
4
1.27
(0.33)
0.25
M
C B A
1.27
LAND PATTERN RECOMMENDATION
0.25
0.10
SEE DETAIL A
1.75 MAX
R0.10
0.10
0.51
0.33
0.50 x 45°
0.25
C
OPTION A - BEVEL EDGE
GAGE PLANE
R0.10
8°
0°
0.90
0.406
0.25
0.19
C
OPTION B - NO BEVEL EDGE
0.36
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
SEATING PLANE
(1.04)
DETAIL A
SCALE: 2:1
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/.
©2012 Fairchild Semiconductor Corporation
FAN7085_GF085 Rev. 1.0.1
13
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FAN7085_GF085 High Side Gate Driver with Recharge FET
Package Dimensions
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LIFE SUPPORT POLICY
FAIRCHILD’S PRODUCTS ARE NOT AUTHORIZED FOR USE AS CRITICAL COMPONENTS IN LIFE SUPPORT DEVICES OR SYSTEMS WITHOUT THE
EXPRESS WRITTEN APPROVAL OF FAIRCHILD SEMICONDUCTOR CORPORATION.
As used herein:
1. Life support devices or systems are devices or systems which, (a) are
intended for surgical implant into the bod y or (b) support or sustain
life, and (c) whose failure to perform when properly used in
accordance with instructions for use provided in the labeling, can be
reasonably expected to result in a significant injury of the user.
2. A critical component in any component of a life support, device, or
system whose failure to perform can be reasonably expected to
cause the failure of the life support device or system, or to affect its
safety or effectiveness.
AN TI-COUNTERFEITING POLICY
Fairchild Semiconductor Corporation's Anti-Counterfeiting Policy. Fairchild's Anti-Counterfeiting Policy is also stated on our external website, www.fairchildsemi.com,
under Sales Support.
Counterfeiting of semiconductor parts is a growing problem in the industry. All manufacturers of semiconductor products are experiencing counterfeiting of their parts.
Customers who inadvertently purchase counterfeit parts experience many problems such as loss of brand reputation, substandard performance, failed applications,
and increased cost of production and manufacturing delays. Fairchild is taking strong measures to protect ourselves and our customers from the proliferation of
counterfeit parts. Fairchild strongly encourages customers to purchase Fairchild parts either directly from Fairchild or from Authorized Fairchild Distributors who are
listed by country on our web page cited above. Products customers buy either from Fairchild directly or from Authorized Fairchild Distributors are genuine parts,
have full traceability, meet Fairchild's quality standards for handling and storage and provide access to Fairchild's full range of up-to-date technical and product
information. Fairchild and our Authorized Distributors will stand behind all warranties and will appropriately address any warranty issues that may arise. Fairchild will
not provide any warranty coverage or other assistance for parts bought from Unauthorized Sources. Fairchild is committed to combat this global problem and
encourage our customers to do their part in stopping this practice by buying direct or from authorized distributors.
PRODUCT STATUS DEFINITIONS
Definition of Terms
Datasheet
Identification
Product Status
Advance Information
Formative / In Design
Preliminary
First Production
No Identification Needed
Full Production
Obsolete
Not In Production
Definition
Datasheet contains the design specifications for product development. Specifications may change
in any manner without notice.
Datasheet contains preliminary data; supplementary data will be published at a later date. Fairchild
Semiconductor reserves the right to make changes at any time without notice to improve design.
Datasheet contains final specifications. Fairchild Semiconductor reserves the right to make
changes at any time without notice to improve the design.
Datasheet contains specifications on a product that is discontinued by Fairchild Semiconductor.
The datasheet is for reference information only.
Rev. I43
©2012 Fairchild Semiconductor Corporation
FAN7085_GF085 Rev. 1.0.1
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www.fairchildsemi.com
FAN7085_GF085 High Side Gate Driver with Recharge FET
TRADEMARKS
The following includes registered and unregistered trademarks and service marks, owned by Fairchild Semiconductor and/or its global subsidiaries, and is not
intended to be an exhaustive list of all such trademarks.