ACPL-H312 and ACPL-K312
2.5 Amp Output Current IGBT Gate Driver Optocoupler
with Low I
CC
& UVLO in Stretched SO8
Data Sheet
CAUTION: It is advised that normal static precautions be taken in handling and assembly
of this component to prevent damage and/or degradation which may be induced by ESD.
Description
The ACPL-H312/K312 contains a GaAsP LED. The LED is
optically coupled to an integrated circuit with a power
output stage. These optocouplers are ideally suited for
driving power IGBTs and MOSFETs used in motor control
inverter applications. The high operating voltage range
of the output stage provides the drive voltages required
by gate controlled devices. The voltage and current sup-
plied by these optocouplers make them ideally suited for
directly driving IGBTs with ratings up to 1200 V/100 A. For
IGBTs with higher ratings, the ACPL-H312 /K312 series can
be used to drive a discrete power stage which drives the
IGBT gate. The ACPL-H312 has an insulation voltage of
V
IORM
= 891 V
peak
(Option 060). The ACPL-K312 has an is-
sulation voltage of V
IORM
= 1140Vpeak (Option 060).
Functional Diagram
Features
2.5 A maximum peak output current
2.0 A minimum peak output current
15 kV/µs minimum Common Mode Rejection (CMR) at
V
CM
= 1500 V
0.5 V maximum low level output voltage (V
OL
)
I
CC
= 3 mA maximum supply current
Under Voltage Lock-Out protection (UVLO) with
hysteresis
Package Clearance and Creepage at 8mm (ACPL-K312)
Wide operating V
CC
range: 15 to 30 Volts
500 ns maximum switching speeds
Industrial temperature range: -40°C to 100°C
Safety Approval
- UL1577 recognized
3750 V
rms
for 1 minute for ACPL-H312
5000 V
rms
for 1 minute for ACPL-K312
- CSA Approved
- IEC/EN/DIN EN 60747-5-2 Approved
V
IORM
= 891 V
peak
for ACPL-H312
V
IORM
= 1140 V
peak
for ACPL-K312
Applications
IGBT/MOSFET gate drive
Inverter for Industrial Motor
Inverter for Electrical Home Appliances
Switching Power Supplies (SPS)
Application Note
AN5336 – Gate Drive Optocoupler Basic Design
ACPL-H312/K312
Note: A 0.1 µF bypass capacitor must be
connected between pins V
CC
and V
EE
.
Truth Table
LED
V
CC
– V
EE
“POSITIVE GOING”
(i.e., TURN-ON)
V
CC
– V
EE
“NEGATIVE GOING”
(i.e., TURN-OFF) V
O
OFF
0 – 30V 0 – 30V
LOW
ON
0 – 11V 0 – 9.5V
LOW
ON
11 – 13.5V 9.5 – 12V
TRANSITION
ON
13.5 – 30V 12 – 30V
HIGH
1
3
SHIELD
2
4
8
6
7
5
CATHODE
ANODE
V
CC
V
EE
V
O
V
EE
Lead (Pb) Free
RoHS 6 fully
compliant
RoHS 6 fully compliant options available;
-xxxE denotes a lead-free product
