H
2.0 Amp IGBT Gate Drive
Optocoupler with Integrated
Over-current Protection and
Fault Feedback
Preliminary Technical Data
HCPL-3160
Features
• Integrated IGBT
Desaturation Protection
• Integrated Optically Isolated
IGBT Fault Status Feedback
• CMOS Compatible INPUT
and FAULT Status Indicator
Description
The HCPL-3160 provides low cost,
area efficient IGBT gate drive
that includes desaturation or over
current detection and local IGBT
shutdown. The integrated fault
feedback optocoupler notifies
the controller when the IGBT is
shutdown due to a desaturation
or over current condition.
HP 3160
9630
Actual Size
• Small Printed Circuit Board
Footprint (SO-16 Package)
• -40
°
C to 100
°
C Operating
Temperature
• Suitable for Integration in
Power Modules
• 2.0 A Minimum Peak Output
Current
• 15 kV/
µ
s Minimum Common
Mode Rejection (CMR) at
V
CM
= 1500 V
• V
IORM
= 890 V
PEAK
Functional Diagram
1
2
3
4
5
SHIELD
6
7
8
16
15
14
13
12
11
10
9
This data sheet represents the latest information at the time of publication of this catalog. All specifications
subject to change. Samples available Fall 1996.
1-212
Fault Circuit Operation
A typical desaturation protected
IGBT gate drive application
circuit using the HCPL-3160 is
shown in Figure 1. The IGBT
collector to emitter voltage
is monitored through D
DESAT
.
When the IGPT is
on
and V
DESAT
exceeds the internal reference
voltage of 7 V the IGBT gate is
“softly” turned-off by M2 to
prevent large di/dt generation.
The LED2 driver is also activated,
which drives the internal
feedback LED2 and notifies the
controller of the IGBT fault by
bringing the FAULT output low.
The FAULT output remains
low until RESET is brought low.
(Note if a separate reset line
is not required, RESET can be
connected to Vin on the circuit
board. In this case, the FAULT
output will be reset on the next
PWM cycle that Vin goes low.)
The FAULT output is an open
collector which allows the FAULT
outputs from all the HCPL-3160s
in a drive to be connected
together in a “wired OR” forming
a single fault bus for interfacing
with the micro-controller. The
ENABLE input can also be
connected to this fault bus. With
this connection all IGBTs in a
drive are shutdown without
micro-controller intervention
once a fault is detected on a
single IGBT.
C
BLANK
disables the fault
detection circuitry for a time
period sufficient for normal IGBT
turn-on. C
BLANK
is held low by
Q1 when the IGBT is off.
HCPL-3160
DETECTOR IC
V
E
LIGHTGUIDE 1
C
BLANK
D
DESAT
A3
R
2
(OPTIONAL)
0.1 µF
UVLO
+
–
+
–
V
UVLO
12 V/11 V
GND
LED1–
LED1+
V
CC1
BUFFER IC
TRIPLE
DARLINGTON
I
CHG
+
–
V
CC2
R
G
ENABLE
V
IN
RESET
LED1
LIGHTGUIDE 2
D
R
I
V
E
R
V
E
R Q
I
DSCHG
Q1
V
E
–
+
+
–
DESAT
7V
V
E
S Q
M2
1X
M1
33X
+
–
V
EE
V
CC1
FAULT
Q R
LED2
Q S
GND
SHIELD
V
E
SHIELD
V
E
LED2
DRIVER
Figure 1. IGBT Gate Drive with Desaturation Protection and Fault Feedback.
1-213
OPTOCOUPLERS
Preliminary Electrical Specifications (DC)
Over recommended operating conditions (T
A
= -40 to 100°C) unless otherwise specified.
Parameter
Logic Low
Voltages
Symbol
INPUT
RESET
FAULT
ENABLE
INPUT
RESET
FAULT
ENABLE
I
OH
I
OL
V
OH
V
OL
I
CC1H
I
CC1L
I
CC2H
I
CC2L
I
CHG
I
DSCHG
V
UVLO+
V
UVLO-
UVLO Hysteresis
Desaturation Trip
Voltage
V
UVLO+ -
V
UVLO-
V
DESAT
6.0
11.2
(8.7)
0.2
3
3
0.32
60
13.0
13.4
(10.9) (12.5)
11.6
(9.5)
1.4
7.0
8.0
2.0
Min.
Typ.*
Max.
0.8
Units
V
Conditions
Logic High
Voltages
V
High Level
Output Current
Low Level
Output Current
High Level
Output Voltage
Low Level
Output Voltage
High Level Supply
Current
High Level
Supply Current
High Level
Supply Current
Low Level
Supply Current
Blanking Capacitor
Charging Current
Blanking Capacitor
Discharge Current
UVLO Threshold
0.5
2.0
0.5
2.0
1.5
2.0
A
A
A
A
V
0.5
12
2
7
7
0.45
V
mA
mA
mA
mA
mA
mA
V
V
V
V
V
O
= V
CC2
-4 V
V
O
= V
CC2
15 V
V
O
= V
EE
+ 2.5 V
V
O
= V
EE
+ 15
I
O
= -100 mA
I
O
= 100 mA
Vin = 5 V, V
CC1
= 5 V
Vin = 0 V, V
CC1
= 5 V
output open
output open
Vdesat = 0 V
Vdesat = 7 V
V
CC2
= 1.0 ms ramp,
V
O
> 5 V
V
CC2
= 1.0 ms ramp,
V
O
> 5 V
V
CC2
-4 V
CC2
-3
0.1
*All typical values at T
A
= 25°C and V
CC2
- V
EE
= 30 V, unless otherwise noted.
1)
V
UVLO+
and V
UVLO-
are specified as the V
CC2
at which V
O
exceeds 5 V. The approximate output voltage just prior/after the UVLO
transition is given in parenthesis.
1-214
Preliminary Switching Specifications (AC)
Over recommended operating conditions (T
A
= -40 to 100°C) unless otherwise specified.
Parameter
Propagation Delay Time
to High Output Level
Propagation Delay Time
to Low Output Level
Pulse Width Distortion
Propagation Delay
Difference Between
Any Two Parts
Rise Time
Fall Time
Propagation Delay
Time from Desat to
Low Level Output
Propagation Delay
Time from Desat to
Low Level FAULT Signal
Minimum FAULT
Signal Pulse Width
UVLO Turn Off Delay
Output High Level
Common Mode
Transient Immunity
Output Low Level
Common Mode
Transient Immunity
Symbol
t
PLH
t
PHL
pwd
t
PHL
- t
PLH
Min.
0.10
0.10
-0.1
-0.4
Typ.*
0.30
Max.
0.50
0.50
0.1
0.4
Units
µs
µs
µs
µs
Conditions
Rg = 10
Ω,
Cg = 10 nF,
f = 10 kHz, Duty Cycle = 50%
t
r
t
f
t
P(DS)
0.1
0.1
1.5
µs
µs
µs
Rg = 10
Ω,
CG = 10 nF
RG = 10
Ω,
CG = 10 nF
t
PF(DS)
10
µs
∆t
FAULT
t
UVLO OFF
|CM
H
|
15
2.0
0.6
30
µs
µs
kV/µs
T
A
= 25°C, INPUT = 5 V,
V
CM
= 1500 V, V
CC
= 30 V
T
A
= 25°C, V
CM
= 1500 V,
INPUT = 0 V, V
CC2
= 30 V
|CM
L
|
15
30
kV/µs
*All typical values at T
A
= 25°C and V
CC2
- V
EE
= 30 V, unless otherwise noted.
1-215
OPTOCOUPLERS
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