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FAN7081_GF085 High Side Gate Driver
November 2009
High Side Gate Driver
Features
* Qualified to AEC Q100 * 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)
FAN7081_GF085
Description
The FAN7081_GF085 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.
Typical Applications
* Diesel and gasoline Injectors/Valves * MOSFET-and IGBT high side driver applications
SOIC-8
For Fairchild's definition of "green" Eco Status, please visit: http://www.fairchildsemi.com/company/green/rohs_green.html
Ordering Information
Device
FAN7081M FAN7081MX X : Tape & Reel type
Package
SOIC-8 SOIC-8
Operating Temp.
-40 C ~ 125 C -40 C ~ 125 C
(c)2009 Fairchild Semiconductor Corporation
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FAN7081_GF085 Rev. 1.0.0
FAN7081_GF085 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
VCC IN
VB HO VS N.C
8 7 6 5
3 4
COM N.C
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
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FAN7081_GF085 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) Thermal resistance, junction to ambient 1) Electrostatic discharge voltage (Human Body Model) Charge device model Junction Temperature Storage Temperature
Symbol
VS VB VHO VCC VIN Pd Rthja VESD 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
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 <= 125C
Parameter
High side floating supply voltage(DC)
Transient:-10V@ 0.2 us
Symbol
VB VS VS
Min.
VS + 10 -4 (@VBS >= 10V) -5 (@VBS >= 11.5V) -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 VCC VIN Fs Ta
VB 50 20 Vcc 200
V V/ns V V KHz C
-40
125
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FAN7081_GF085 High Side Gate Driver
Statics Electrical Characteristics
Unless otherwise specified, -40C <= Ta <= 125C,VCC = 15V, VBS = 15V, VS = 0V, RL = 50, CL = 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 IQBS 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 VIN=0 VIN= 0V VIN=15V
0.2 0.5 0.5 -
23 42 25
50 250 120 100
VIH VIL IIN+ IINVIN=0 VIN=15V
0.63VCC -
15 0
0.4VCC 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_GF085 High Side Gate Driver
Dynamic Electrical Characteristics
Unless otherwise specified, -40C <= Ta <= 125C, VCC = 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,VBS=15V 10% to 90% 90% to 10%, Tj=25C,VBS=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
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FAN7081_GF085 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_GF085 High Side Gate Driver
Typical Application Circuit
Db Up to 600V VCC VCC
1
VB
8
IN C1
2
HO
7
Rg Cbs R1 Load C2
COM
3
VS
6
NC
4
NC
5
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FAN7081_GF085 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 VBdrop
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
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Performance Graphs
This performance graphs based on ambient temperature -40C ~125C
500
500
Turn-on Delay Time(ns)
Turn-on Delay Time(ns)
400
Vcc=VBS=15V, RL=50, CL=2.5nF
400
Vcc=15V, RL=50, CL=2.5nF
300
Max.
300
Max.
200
Typ.
200
Typ.
100
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
500
Turn-off Delay Time(ns)
300
Turn-off Delay Time(ns)
400
Vcc=VBS=15V, RL=50, CL=2.5nF
Vcc=15V, RL=50, CL=2.5nF
400
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 5a. Turn-Off Delay Time vs Temperature
Figure5b. Turn-Off Delay Time vs VBS Supply Voltage
500
500
Turn-On Rise Time(ns)
Max.
Turn-on Rise Time(ns)
400
Vcc=VBS=15V, RL=50, CL=2.5nF
400
Max.
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
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FAN7081_GF085 High Side Gate Driver
500
300
Vcc=VBS=15V, RL=50, CL=2.5nF
Turn-Off Fall Time(ns)
400
VCC=15V, RL=50, CL=2.5nF
250
Turn-off Fall Time(ns)
200 150
Max.
300
200
100 50
Typ.
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 12
Input Voltage(V)
16
Vcc=VBS=15V, RL=50, CL=2.5nF
Input Voltage(V)
14 12 10 8 6
Min.
VBS=15V, RL=50, CL=2.5nF
11
1 90 8
Min.
-50
-25
0
25
50
o
75
100
125
4 10
12
14
16
18
20
Temperature( C)
VCC Supply Voltage(V)
Figure 8a. Logic "1" IN Voltage vs Temperature
Figure8b. Logic "1" IN Voltage vs VCC Supply Voltage
9
12
8
Vcc=VBS=15V, RL=50, CL=2.5nF
Input Voltage(V)
10 8 6 4 2 0 10
VBS=15V, RL=50, CL=2.5nF
Input Voltage (V)
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 9a. Logic "0" IN Voltage vs Temperature
Figure 9b. Logic "0" IN Voltage vs VCC Supply Voltage
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FAN7081_GF085 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)
VBS Supply Voltage(V)
Figure 10a. High Level Output vs Temperature
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
0.4
Vcc=15V, RL=50,CL=2.5nF
0.3
0.3
0.2
Max.
0.2
Max.
0.1
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
500
VB=BS= 600V,
160
Offset Supply Leakage Current (uA)
Offset Supply Leakage Current(A)
400
120
300
80
200
40
Max.
100
Max.
0 -50
0 -25 0 25 50
o
75
100
125
0
100
200
300
400
500
600
Temperature( C)
VB Boost Voltage (V)
Figure 12a. Offset Supply Leakage Current vs Temperature
Figure 12b. Offset Supply Leakage Current vs VB Boost Voltage
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FAN7081_GF085 High Side Gate Driver
300 250
Max.
Vcc=VBS=15V, RL=50, CL=2.5nF
VBS Supply Cureent (uA)
150 125 100 75 50 25
Typ.
Max.
Vcc=15V, RL=50, CL=2.5nF
VBS Supply Cureent (uA)
200 150 100
Typ.
50 0 -50
-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
200
120
Max.
VCC Supply Cureent (uA)
VCC Supply Current (uA)
160
Vcc=VBS=15V, RL=50, CL=2.5nF
VBS=15V, RL=50, CL=2.5nF
160
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)
Logic "0" Input Current (uA)
70 60 50
Max.
Vcc=VBS=15V, RL=50, CL=2.5nF
70 60 50 40 30 20 10
Typ. Max.
VBS=15V, RL=50, CL=2.5nF
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)
VCC Supply Voltage ( C)
Figure 15a. Logic "0" IN Current vs Temperature
Figure 15b. Logic "0" IN Current vs VCC Supply Voltage
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FAN7081_GF085 High Side Gate Driver
5
5
Logic "1" Input Current (uA)
Logic "1" Inpit Current(A)
Vcc=VBS=15V, RL=50, CL=2.5nF
4
VBS=15V, RL=50, CL=2.5nF
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)
VCC Supply Voltage(V)
Figure 16a. Logic "1" IN Current vs Temperature
Figure 16b. Logic "1" IN Current vs VCC Supply Voltage
12 11
12 11
VCC Supply Voltage (V)
VCC 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)
Temperature ( C)
Figure 17a. VCC Under voltage Threshold(+) vs Temperature
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)
Temperature ( C)
Figure 18a. VBS Under voltage Threshold(+) vs Temperature
Figure 18b. VBS Under voltage Threshold(-) vs Temperature
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FAN7081_GF085 High Side Gate Driver
600
600
Output Source Cureent (mA)
Vcc=VBS=15V
Output Source Current (mA)
500 400 300 200 100 0 -50
Typ.
Vcc=15V,
500 400 300
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
1000
Output Sink Cureent (mA)
Min.
Output Sink Cureent (uA)
800
Typ.
Vcc=VBS=15V
800
Vcc=15V
600
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)
VBIAS Supply Voltage (V)
Figure 20a. Output Sink Current vs Temperature
Figure 20b. Output Sink Current vs VBS Supply Voltage
-6
VS Offset Supply Voltage (V)
-7 -8 -9 -10 -11 -12 -50
Typ.
VS Offset Supply Voltage (V)
Vcc=VBS=15V, RL=50, CL=2.5nF
-2 -4 -6
Typ. @ 25 C
o
Min
Typ. @ 125 C
o
10<=VCC<=20V, RL=50, CL=2.5nF
-8 -10 -12 -14 -16 10
-25
0
25
o
50
75
100
125
12
14
16
18
20
Temp( C)
VBS 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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Package Dimensions
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FAN7081_GF085 High Side Gate Driver
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Rev. I43
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