FAN7080_GF085 Half Bridge Gate Driver
November 2009
Half Bridge Gate Driver
Features
• Qualified to AEC Q100
• Floating channel designed for bootstrap operation fully oper-
ational to + 600V
• Tolerance to negative transient voltage on VS pin
• VS-pin dv/dt immune.
• Gate drive supply range from 5.5V to 20V
• Under-voltage lockout
• CMOS Schmitt-triggered inputs with pull-down
• High side output in phase with input
• IN input is 3.3V/5V logic compatible and available on 15V
input
• Matched propagation delay for both channels
• Dead time adjustable
FAN7080_GF085
Description
The FAN7080_GF085 is a half-bridge gate drive IC with reset
input and adjustable dead time control. It is designed for high
voltage and high speed driving of MOSFET or IGBT, which
operates up to 600V. Fairchild's high-voltage process and com-
mon-mode noise cancellation technique provide stable opera-
tion 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 cir-
cuits for both channels prevent from malfunction when VCC and
VBS are lower than the specified threshold voltage. Combined
pin function for dead time adjustment and reset shutdown make
this IC packaged with space saving SOIC-8 Package. Minimum
source and sink current capability of output driver is 250mA and
500mA respectively, which is suitable for junction box applica-
tion and half and full bridge application in the motor drive sys-
tem.
Typical Applications
• Junction Box
• Half and full bridge application in the motor drive system
SOIC-8
For Fairchild’s definition of “green” Eco Status, please visit:
http://www.fairchildsemi.com/company/green/rohs_green.html
Ordering Information
Device
FAN7080M
FAN7080MX
X : Tape & Reel type
Package
SOIC-8
SOIC-8
Operating
Temp.
-40
°C
~ 125
°C
-40
°C
~ 125
°C
©2009 Fairchild Semiconductor Corporation
1
www.fairchildsemi.com
FAN7080_GF085 Rev. 1.0.0
FAN7080_GF085 Half Bridge Gate Driver
Block Diagrams
VCC
VB
UVLO
R
vreg
IN
500kΩ
DEADTIME
CONTROL
PULSE
GENERATOR
PULSE
FILTER
R
S
Q
HO
VS
vreg
VCC
VCC
UVLO
DELAY
SD/DT
500kΩ
LO
COM
Pin Assignments
1
2
3
4
VCC
IN
SD/DT
COM
VB
HO
VS
LO
8
7
6
5
Pin Definitions
Pine Number
1
2
3
4
5
6
7
8
Pin Name
VCC
IN
SD/DT
COM
LO
VS
HO
VB
I/O
P
I
I
P
A
A
A
P
Driver supply voltage
Pin Function Description
Logic input for high and low side gate drive output
Shut down input and dead time setting
Ground
Low side gate drive output for MOSFET Gate connection
High side floating offset for MOSFET Source connection
High side drive output for MOSFET Gate connection
Driver output stage supply
2
FAN7080_GF085 Rev. 1.0.0
www.fairchildsemi.com
FAN7080_GF085 Half Bridge Gate Driver
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 COM.
Parameter
High side floating supply offset voltage
High side floating supply voltage
High side floating output voltage
Low side output voltage
Supply voltage
Input voltage for IN
Input injection current. Full function, no latch
up;(Guaranteed by design). Test at 10V and
17V on Eng.Samples
Power Dissipation
Thermal resistance, junction to ambient
Electrostatic discharge voltage
(Human Body Model)
Charge device model
Junction Temperature
Storage Temperature
Symbol
V
S
V
B
V
HO
V
LO
V
CC
VIN
I
IN
Min.
V
B
-25
-0.3
Vs-0.3
-0.3
-0.3
-0.3
-
Max.
V
B
+0.3
625
V
B
+0.3
V
CC
+ 0.3
25
V
cc
+0.3
+1
Unit
V
V
V
V
V
V
mA
Pd
Rthja
V
ESD
V
CDM
Tj
T
S
-55
1K
500
0.625
200
W
°C/W
V
V
150
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 convection(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
High side floating supply voltage(DC)
Transient:-10V@ 0.1 us
Symbol
VB
1)
V
S
V
HO
V
LO
dv/dt
V
CC
V
IN
F
s
T
a
Min.
V
S
+ 6
-5
Vs
0
-
5.5
0
Max.
V
S
+ 20
600
V
B
V
CC
50
20
V
cc
200
Unit
V
V
V
V
V/ns
V
V
KHz
°C
High side floating supply offset voltage(DC)
Transient: -25V(max) @0.1us @VBS<25V
High side floating output voltage
Low side output voltage
Allowable offset voltage Slew Rate
2)
Supply voltage for logic part
Logic input voltage
Switching Frequency
3)
Ambient Temperature
Note: 1) The Vs offset is tested with all supplies biased at 15V differential.
2) Guaranteed by design.
3) When VDT= 1.2V.
-40
125
3
FAN7080_GF085 Rev. 1.0.0
www.fairchildsemi.com
FAN7080_GF085 Half Bridge Gate Driver
Statics Electrical Characteristics
Unless otherwise specified, -40°C <= Ta
<= 125
°C, V
CC
= 15V, V
BS
= 15V, V
S
= 0V, C
L
= 1nF.
Parameter
Vcc and VBS supply Characteristics
V
CC
and V
BS
supply under voltage
positive going threshold
V
CC
and V
BS
supply under voltage
negative going threshold
V
CC
and V
BS
supply under voltage
hysteresis
Under voltage lockout response time
Offset supply leakage current
Quiescent V
BS
supply current
Quiescent Vcc supply current
Input Characteristics
High logic level input voltage
Low logic level input voltage
High logic level input bias current for IN
Low logic level input bias current for IN
VSDT dead time setting range
VSDT shutdown threshold voltage
High logic level resistance for SD/DT
Low logic level input bias current for SD/DT
Output characteristics
High level output voltage, V
CC
-VH
O
Low level output voltage, V
HO
Output high short circuit pulse current
Output low short circuit pulse current
Equivalent output resistance
Symbol
V
CCUV+
V
BSUV+
V
CCUV
-
V
BSUV-
V
CCUVH
V
BSUVH
tduvcc
tduvbs
I
LK
I
QBS
I
QCC
Conditions
-
-
-
VCC: 6V-->2.5V or 2.5V-->6V
VBS: 6V-->2.5V or 2.5V-->6V
V
B
=V
S
=600V
V
IN
=0 OR 5V, V
SDT
= 1.2V
V
IN
=0 OR 5, V
SDT
= 1.2V
Min.
-
2.8
0.2
0.5
0.5
-
20
-
Typ.
4.2
3.6
0.6
-
-
20
75
350
Max. Unit
5.5
-
-
20
20
50
150
1000
V
V
V
us
us
uA
uA
uA
V
IH
V
IL
I
IN+
II
N-
V
DT
V
SD
R
SDT
ISDT-
2.7
-
V
IN
=5V
V
IN
=0V
-
-
1.2
-
V
SDT
=5V
V
SDT
=0V
100
-
-
-
10
0
-
0.8
500
1
-
0.8
50
2
5
1.2
1100
2
V
V
uA
uA
V
V
KΩ
uA
V
OH(HO)
V
OL(HO)
I
O+(HO)
I
O-(HO)
R
OP(HO)
R
ON(HO)
I
O
=0
I
O
=0
-
-
250
500
-
-
-
-
300
600
-
-
-
-
-
-
-
-
0.1
0.1
-
-
60
30
0.1
0.1
-
-
60
30
V
V
mA
mA
Ω
Ω
V
V
mA
mA
Ω
Ω
High level output voltage, V
B
-V
LO
Low level output voltage, V
LO
Output high short circuit pulse current
Output low short circuit pulse current
Equivalent output resistance
V
OH(LO)
V
OL(LO)
I
O+(LO)
I
O-(LO)
R
OP(LO)
R
ON(LO)
I
O
=0
I
O
=0
-
-
250
500
-
-
4
FAN7080_GF085 Rev. 1.0.0
www.fairchildsemi.com
FAN7080_GF085 Half Bridge Gate Driver
Dynamic Electrical Characteristics
Unless otherwise specified, -40°C <= Ta
<= 125
°C, V
CC
= 15V, V
BS
= 15V, V
S
= 0V, C
L
= 1nF.
Parameter
Turn-on propagation delay
Turn-off propagation delay
Turn -on rising time
Turn -off falling time
Dead time, LS turn-off to HS turn-on
and HS turn-on to LS turn-off
Dead time matching time
Delay Matching, HS and LS turn-on
Delay Matching, HS and LS turn-off
Shutdown propagation delay
Switching Frequency
Symbol
ton
toff
tr
tf
DT
MDT
MTON
MTOFF
Tsd
Fs1
Fs2
Conditions
V
S
=0V
V
S
=0V
-
-
V
IN
=0 or 5V@ VDT=1.2V
V
IN
=0 or 5V@ VDT=3.3V
DT1 -DT2@ VDT=1.2V
DT1 -DT2@ VDT=3.3V
VDT=1.2V
VDT=1.2V
Min.
-
-
-
-
250
1600
-
-
Typ.
750
130
40
25
650
2100
35
-
25
15
Max.
1500
250
150
400
1200
2600
110
300
110
60
330
200
200
Unit
ns
ns
ns
ns
ns
ns
ns
ns
ns
KHz
KHZ
-
V
CC
=V
BS
=20V
V
CC
=V
BS
=5.5V
-
-
180
-
-
5
FAN7080_GF085 Rev. 1.0.0
www.fairchildsemi.com
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