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FAN7081_F085 High Side Gate Driver
March 2009
FAN7081_F085
Features
* Qualified to AEC Q100
High Side Gate Driver
Description
The FAN7081_F085 is a high-side gate drive IC designed for high voltage and high speed driving of MOSFET or IGBT, which operates up to 600V. 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. An advanced level-shift circuit allows high-side gate driver operation up to VS=-5V (typical) at VBS=15V. 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 500mA respectively, which is suitable for magnetic- and piezo type injectors and general MOSFET/IGBT based high side driver applications.
* Floating channel designed for bootstrap operation up fully operational to + 600V * Tolerance to negative transient voltage on VS pin * dV/dt immune. * Gate drive supply range from 10V to 20V * Under-voltage lockout * CMOS Schmit-triggered inputs with pull-up * High side output out of phase with input (Inverted input)
Typical Applications
* Diesel and gasoline Injectors/Valves * MOSFET-and IGBT high side driver applications
SOIC-8
Ordering Information
Device
FAN7081CM FAN7081CMX X : Tape & Reel type
Package
SOIC-8 SOIC-8
Operating Temp.
-40 C ~ 125 C -40 C ~ 125 C
(c)2008 Fairchild Semiconductor Corporation
1
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FAN7081_F085 Rev. 1.0.2
FAN7081_F085 High Side Gate Driver
Block Diagrams
VCC
UV DETECT UV DETECT PULSE GEN
HV Level Shift
VB
RQ R S
PULSE FILTER
HO
IN
VS
COM
Pin Assignments
1 2 3 4
VCC IN COM N.C
VB HO VS N.C
8 7 6 5
Pin Definitions
Pine Number
1 2 3 4 5 6 7 8
Pin Name
VCC IN COM NC NC VS HO VB
I/O
P I P P A P Driver supply voltage
Pin Function Description
Logic input for high side gate drive output, out of phase with HO Ground NC NC High side floating offset for MOSFET Source connection High side drive output for MOSFET Gate connection Driver output stage supply
2 FAN7081_F085 Rev. 1.0.2
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FAN7081_F085 High Side Gate Driver
Absolute Maximum Ratings
Absolute Maximum Ratings indicate sustained limits beyond which damage to the device may occur. All voltage parameters are absolute voltages referenced to COM.
Parameter
High side floating supply offset voltage High side floating supply voltage High side floating output voltage Supply voltage Input voltage for IN Power Dissipation
1) 1)
Symbol
VS VB VHO VC C VIN Pd Rthja V ESD VCDM Tj TS
Min.
VB-25 -0.3 Vs-0.3 -0.3 -0.3
Max.
VB+0.3 625 VB+0.3 25 Vcc+0.3 0.625 200
Unit
V V V V V W C/W V V
Thermal resistance, junction to ambient Electrostatic discharge voltage (Human Body Model) Charge device model Junction Temperature Storage Temperature
1K 500 150 -55 150
C C
Note: 1) The thermal resistance and power dissipation rating are measured bellow conditions; JESD51-2: Integrated Circuit Thermal Test Method Environmental Conditions - Natural codition(StillAir) JESD51-3: Low Effective Thermal Conductivity Test Board for Leaded Surface Mount Package
Recommended Operating Conditions
For proper operations the device should be used within the recommended conditions. -40C <= Ta<=
125 C
Parameter
High side floating supply voltage(DC)
Transient:-10V@ 0.2 us
Symbol
VB VS VS
Min.
VS + 10 -5 -25 (~200ns) -20(200ns ~240ns) -7(240ns~400ns) VS 10 0
Max.
Vs + 20 600 600
Unit
V V V
High side floating supply offset voltage(DC) High side floating supply offset voltage(Transient)
High side floating output voltage Allowable offset voltage Slew Rate 1) Supply voltage Input voltage for IN Switching Frequency 2) Ambient Temperature
Note: 1) Guaranteed by design. 2) Duty = 0.5
VHO dv/dt VC C VIN Fs Ta
VB 50 20 Vcc 200
V V/ns V V KHz C
-40
125
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FAN7081_F085 High Side Gate Driver
Statics Electrical Characteristics
Unless otherwise specified, -40C <= Ta <=
125C,VC C
= 15V, VBS = 15V, VS = 0V, RL = 50, C L = 2.5nF.
Parameter
Vcc and VBS supply Characteristics VCC and VBS supply under voltage positive going threshold VCC and VBS supply under voltage negative going threshold VCC and VBS supply under voltage hysteresis Under voltage lockout response time Offset supply leakage current Quiescent VBS supply current Quiescent Vcc supply current Quiescent Vcc supply current Input Characteristics High logic level input voltage Low logic level input voltage Low logic level input bias current for IN High logic level input bias current for IN Output characteristics High level output voltage, VBIAS -VO Low level output voltage, VO Peak output source current Peak output sink current Equivalent output resistance
Symbol
VCCUV+ VBSUV+ VCCUVVBSUVVCCUVH VBSUVH tduvcc tduvbs ILK IQ B S IQCC1 IQCC2
Conditions
Min.
7.4
Typ.
8.7 8.2 0.5
Max.
9.8 20 20
Unit
V V V us us uA uA uA uA
VCC: 10V-->7.3V or 7.3V-->10V VBS: 10V-->7.3V or 7.3V-->10V VB =VS=600V V IN=0 VIN = 0V VIN =15V
0.2 0.5 0.5 -
23 42 25
50 250 120 100
VIH VIL IIN + IINV IN= 0 VIN =15V
0.6VC C -
15 0
0.4VC C 50 1
V V uA uA
VOH VOL IO1+ IO1ROP RON
IO=0 IO=0
250 500
40 20
0.1 0.1 60 30
V V mA mA
Note: The input parameter are referenced to COM. The VO and IO parameters are referenced to COM.
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FAN7081_F085 High Side Gate Driver
Dynamic Electrical Characteristics
Unless otherwise specified, -40C <= Ta
<= 125 C,
VC C = 15V, VBS = 15V, VS = 0V, RL = 50, CL = 2.5nF.
Parameter
Input-to-output turn-on propagation delay Input-to-output turn-off propagation delay Output rising time
Symbol
tplh tphl tr1 tr2
Conditions
50% input level to 10% output level, VS = 0V 50% input level to 90% output level VS = 0V 10% to 90%, Tj=25C,VB S=15V 10% to 90% 90% to 10%, Tj=25C,VB S=15V 90% to 10%
Min. Typ. Max. Unit
130 140 15 10 300 300 400 500 150 500 ns ns ns ns ns ns
Output falling time
tf1 tf2
5 FAN7081_F085 Rev. 1.0.2
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FAN7081_F085 High Side Gate Driver
Application Information
1. Relationship in input/output and supplies
Table.1 Truth table for Vcc, VBS,VIN, and VHO
VCC
< VCCUVLOX X > VCCUVLO+
Notes: X means independent from signal
VBS
X < VBSUVLOX > VBSUVLO+
IN
X X HIGH LOW
HO
OFF OFF OFF ON
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FAN7081_F085 High Side Gate Driver
Typical Application Circuit
Db Up to 600V VCC VCC
1
VB
8
Rg Cbs R1 Load C2
IN C1
2
HO
7
COM
3
VS
6
NC
4
NC
5
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FAN7081_F085 High Side Gate Driver
Typical Waveforms
1. Input/Output Timing
IN
VS
HO
tplh tphl
Figure 1. Input /output Timing Diagram
2. Ouput(HO) Switching Timing
90% 90%
10% tr tf
10%
Figure 2. Switching Time Waveform Definitions
3.VB Drop Voltage Diagram
Ig
IN
VCC IN COM NC
15V VB drop
Ig VB HO VS NC 2.2n 50 1u
VB-VS
Figure3b. VB Drop Voltage Test Circuit
Brake before make
Figure 3a. VB Drop Voltage Diagram
8 FAN7081_F085 Rev. 1.0.2
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FAN7081_F085 High Side Gate Driver
Performance Graphs
This performance graphs based on ambient temperature -40 C ~ 1 2 5C
500
Vcc=VBS=15V, RL=50, CL=2.5nF
500
Vcc=15V, RL=50, CL=2.5nF
Turn-on Delay Time(ns)
Turn-on Delay Time(ns)
400
400
300
300
Max.
200
Max.
200
Typ.
100
Typ.
100
0 -50
-25
0
25
50
o
75
100
125
0 10
12
14
16
18
20
Temperature( C)
VBIAS Supply Voltage(V)
Figure 4a. Turn-On Delay Time vs Temperature
Figure 4b. Turn-On Delay Time vs VBS Supply Voltage
500
Vcc=VBS=15V, RL=50, CL=2.5nF
500
Vcc=15V, RL=50, CL=2.5nF
Turn-off Delay Time(ns)
Turn-off Delay Time(ns)
400
400
300
300
Max.
200
Max.
200
Typ.
100
Typ.
100
0 -50
-25
0
25
50
o
75
100
125
0 10
12
14
16
18
20
Temperature( C)
VBIAS Supply Voltage(V)
Figure5b. Turn-Off Delay Time vs VBS Supply Voltage
Figure 5a. Turn-Off Delay Time vs Temperature
500
Vcc=VBS=15V, RL=50, CL=2.5nF
500
Max.
Turn-On Rise Time(ns)
Max.
Turn-on Rise Time(ns)
400
400
Vcc=15V, RL=50, CL=2.5nF
300
300
200
200
100
Typ.
100
Typ.
0 -50
-25
0
25
50
o
75
100
125
0 10
12
14
16
18
20
Temperature( C)
VBIAS Supply Voltage(V)
Figure 6a.Turn-On Rising Time vs Temperature
Figure 6b. Turn-ON Rising Time vs VBS Supply Voltage
9 FAN7081_F085 Rev. 1.0.2
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FAN7081_F085 High Side Gate Driver
500
Vcc=VBS=15V, RL=50, CL=2.5nF
300 250
VCC=15V, RL=50, CL=2.5nF
Turn-Off Fall Time(ns)
400
Turn-off Fall Time(ns)
200 150 100 50
Typ.
Max.
300
200
100
Max.
Typ.
0 -50
-25
0
25
50
o
75
100
125
0 10
12
14
16
18
20
Temperature( C)
VBS Supply Voltage(V)
Figure 7a. Turn-Off Falling Time vs Temperature
Figure 7b. Turn-Off Falling Time vs VBS Supply Voltage
13
16
Vcc=VBS=15V, RL=50, CL=2.5nF VBS=15V, RL=50, CL=2.5nF
14
12
Input Voltage(V)
Min.
Input Voltage(V)
12 10 8 6 4 10
Min.
11
10
9
8 -50
-25
0
25
50
75
100
125
12
14
16
18
20
Temperature( C)
o
VCC Supply Voltage(V)
Figure 8a. Logic "1" IN Voltage vs Temperature
Figure8b. Logic "1" IN Voltage vs VCC Supply Voltage
9
Vcc=VBS=15V, RL=50, CL=2.5nF
12 10
VBS=15V, RL=50, CL=2.5nF
8
Input Voltage (V)
Input Voltage(V)
8 6 4 2 0 10
7
6
Max.
Max.
5
4 -50
-25
0
25
50
o
75
100
125
12
14
16
18
20
Temperature ( C)
VCC Supply Voltage(V)
Figure 9b. Logic "0" IN Voltage vs VCC Supply Voltage
Figure 9a. Logic "0" IN Voltage vs Temperature
10 FAN7081_F085 Rev. 1.0.2
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FAN7081_F085 High Side Gate Driver
0.5
0.5
High Level Output Voltage(V)
High Level Output Voltage (V)
0.4
Vcc=VBS=15V, RL=50, CL=2.5nF
0.4
Vcc=15V, RL=50,CL=2.5nF
0.3
0.3
0.2
0.2
0.1
Max.
0.1
Max.
0.0 -50
-25
0
25
50
o
75
100
125
0.0 10
12
14
16
18
20
Temperature( C)
Figure 10a. High Level Output vs Temperature
VBS Supply Voltage(V)
Figure 10b. High Level Output vs VBS Supply Voltage
0.5
0.5
Low Level Output Voltage (V)
Low Level Output Voltage(V)
0.4
Vcc=VBS=15V, RL=50, CL=2.5nF
Vcc=15V, RL=50,CL=2.5nF
0.4
0.3
0.3
0.2
0.2
Max.
0.1
Max.
0.1
0.0 -50
-25
0
25
50
o
75
100
125
0.0 10
12
14
16
18
20
Temperature( C)
VBS Supply Voltage(V)
Figure 11a. Low Level Output vs Temperature
Figure 11b. Low Level Output vs VBS Supply Voltage
200
VB=BS= 600V,
500
Offset Supply Leakage Current (uA)
Offset Supply Leakage Current(A)
160
400
120
300
80
200
40
Max.
100
Max.
0 -50
-25
0
25
50
o
75
100
125
0
0
100
200
300
400
500
600
Temperature( C)
Figure 12a. Offset Supply Leakage Current vs Temperature
VB Boost Voltage (V)
Figure 12b. Offset Supply Leakage Current vs VB Boost Voltage
11 FAN7081_F085 Rev. 1.0.2
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FAN7081_F085 High Side Gate Driver
150 125 100 75 50
Typ.
Vcc=VBS=15V, RL=50, CL=2.5nF
Max.
150 125
Vcc=15V, RL=50, CL=2.5nF
VBS Supply Cureent (uA)
VBS Supply Cureent (uA)
100 75 50 25
Max.
25 0 -50
Typ.
-25
0
25
50
o
75
100
125
0 10
12
14
16
18
20
Temperature ( C)
VBS Supply Voltage (V)
Figure 13a. VBS Supply Current vs Temperature
Figure 13b. VBS Supply Current vs VBS Supply Voltage
200
Vcc=VBS=15V, RL=50, CL=2.5nF
Max.
200
VBS=15V, RL=50, CL=2.5nF
VCC Supply Cureent (uA)
VCC Supply Current (uA)
160
160
120
120
Max.
80
Typ.
80
40
40
Typ.
0 -50
-25
0
25
50
o
75
100
125
0 10
12
14
16
18
20
Temperature ( C)
VCC Supply Voltage (V)
Figure 14a.VCC Supply Current vs Temperature
Figure 14b. VCC Supply Current vs VCC Supply Voltage
80
80
Logic "0" Input Current ( uA)
70
Logic "0" Input Current ( uA)
Vcc=VBS=15V, RL=50, CL=2.5nF
70 60 50 40 30 20 10
Typ. Max.
VBS=15V, RL=50, CL=2.5nF
60 50
Max.
40 30 20
Typ.
10 0 -50 -25 0 25 50
o
75
100
125
0 10
12
14
16
o
18
20
Temperature ( C)
VC C Supply Voltage ( C)
Figure 15b. Logic "0" IN Current vs VCC Supply Voltage
Figure 15a. Logic "0" IN Current vs Temperature
12 FAN7081_F085 Rev. 1.0.2
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FAN7081_F085 High Side Gate Driver
5
5
Logic "1" Input Current (uA)
Logic "1" Inpit Current(A)
Vcc=VBS=15V, RL=50, CL=2.5nF
VBS=15V, RL=50, CL=2.5nF
4
4
3
3
2
2
1
Max.
1
Max.
0 -50
-25
0
25
50
o
75
100
125
0 10
12
14
16
18
20
Temperature ( C)
Figure 16a. Logic "1" IN Current vs Temperature
VCC Supply Voltage(V)
Figure 16b. Logic "1" IN Current vs VCC Supply Voltage
12 11
12 11
VC C Supply Voltage (V)
VC C Supply Voltage (V)
10 9 8 7 6 -50
10 9 8 7 6 -50
-25
0
25
50
o
75
100
125
-25
0
25
50
o
75
100
125
Temperature ( C)
Figure 17a. VCC Under voltage Threshold(+) vs Temperature
Temperature ( C)
Figure 17b. VCC Under voltage Threshold(-) vs Temperature
12 11
12 11
VBS Supply Voltage (V)
VBS Supply Voltage (V)
10 9 8 7 6 -50
10 9 8 7 6 -50
-25
0
25
50
o
75
100
125
-25
0
25
50
o
75
100
125
Temperature ( C)
Figure 18a. VBS Under voltage Threshold(+) vs Temperature
Temperature ( C)
Figure 18b. VBS Under voltage Threshold(-) vs Temperature
13 FAN7081_F085 Rev. 1.0.2
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FAN7081_F085 High Side Gate Driver
600
Output Source Cureent (mA)
Vcc=VBS=15V, RL=50, CL=2.5nF
600 500 400 300
Typ.
Vcc=15V, RL=50, CL=2.5nF
Output Source Current (mA)
500 400 300 200 100 0 -50
Typ.
Min.
200
Min.
100 0 10
-25
0
25
50
o
75
100
125
12
14
16
18
20
Temperature ( C)
VBIAS Supply Voltage (V)
Figure 19a. Output Source Current vs Temperature
Figure 19b. Output Source Current vs VBS Supply Voltage
1000
Vcc=VBS=15V, RL=50, CL=2.5nF
1000
Vcc=15V RL=50, CL=2.5nF
Output Sink Cureent ( mA)
Min.
600
Output Sink Cureent (uA)
800
Typ.
800
600
Typ.
400
400
Min.
200
200
0 -50
-25
0
25
50
o
75
100
125
0 10
12
14
16
18
20
Temperature ( C)
Figure 20a. Output Sink Current vs Temperature
VBIAS Supply Voltage (V)
Figure 20b. Output Sink Current vs VBS Supply Voltage
-6
0
-7 -8 -9 -10 -11 -12 -50
Typ.
VS Offset Supply Voltage (V)
VS Offset Supply Voltage (V)
Vcc=VBS=15V, RL=50, CL=2.5nF
-2 -4 -6 -8 -10 -12 -14 -16 10 12
Typ.
Vcc=15V, RL=50, CL=2.5nF
-25
0
25
o
50
75
100
125
14
16
18
20
Temp( C)
VB S Floating Supply Voltage(V)
Figure 21a. Maximum VS Negative Voltage vs Temperature
Figure 21b. Maximum VS Negative Voltage vs VBS Supply Voltage
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FAN7081_F085 High Side Gate Driver
Package Dimensions
15 FAN7081_F085 Rev. 1.0.2
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Rev. I39
(c) 2008 Fairchild Semiconductor Corporation
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