Drive Optocoupler. HCPL-316J Datasheet

HCPL-316J Optocoupler. Datasheet pdf. Equivalent

HCPL-316J Datasheet
Recommendation HCPL-316J Datasheet
Part HCPL-316J
Description 2.0 Amp Gate Drive Optocoupler
Feature HCPL-316J; 2.0 Amp Gate Drive Optocoupler with Integrated (VCE) Desaturation Detection and Fault Status Feedbac.
Manufacture Agilent
Datasheet
Download HCPL-316J Datasheet




Agilent HCPL-316J
2.0 Amp Gate Drive Optocoupler
with Integrated (VCE) Desaturation
Detection and Fault Status
Feedback
Technical Data
HCPL-316J
Features
• Drive IGBTs up to
IC = 150 A, VCE = 1200 V
• Optically Isolated, FAULT
Status Feedback
• SO-16 Package
• CMOS/TTL Compatible
• 500 ns Max. Switching
Speeds
• “Soft” IGBT Turn-off
• Integrated Fail-Safe IGBT
Protection
– Desat (VCE) Detection
– Under Voltage Lock-Out
Protection (UVLO) with
Hysterisis
• User Configurable:
Inverting, Non-inverting,
Auto-Reset, Auto-Shutdown
• Wide Operating VCC Range:
15 to 30 Volts
• -40°C to +100°C Operating
Temperature Range
• 15 kV/µs Min. Common Mode
Rejection (CMR) at
VCM = 1500 V
• Regulatory Approvals: UL,
CSA, VDE 0884 (891 Vpeak
Working Voltage)
Fault Protected IGBT Gate Drive
+HV
ISOLATION
BOUNDARY
ISOLATION
BOUNDARY
ISOLATION
BOUNDARY
HCPL - 316J
HCPL - 316J
HCPL - 316J
3-PHASE
INPUT
M
HCPL - 316J
ISOLATION
BOUNDARY
–HV
HCPL - 316J
ISOLATION
BOUNDARY
HCPL - 316J
ISOLATION
BOUNDARY
FAULT
MICRO-CONTROLLER
HCPL - 316J
ISOLATION
BOUNDARY
Agilent’s 2.0 Amp Gate Drive Optocoupler with Integrated Desaturation (VCE) Detection and Fault Status
Feedback makes IGBT VCE fault protection compact, affordable, and easy-to-implement while
satisfying worldwide safety and regulatory requirements.
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.



Agilent HCPL-316J
2
Typical Fault Protected
IGBT Gate Drive Circuit
The HCPL-316J is an easy-to-use,
intelligent gate driver which
makes IGBT VCE fault protection
compact, affordable, and easy-to-
implement. Features such as user
configurable inputs, integrated
VCE detection, under voltage
lockout (UVLO), “soft” IGBT
turn-off and isolated fault feed-
back provide maximum design
flexibility and circuit protection.
µC
+
RF
1 VIN+
HCPL-316J
VE 16
2 VIN-
VLED2+ 15
3 VCC1
DESAT 14
4 GND1
VCC2 13
5 RESET
VC 12
6 FAULT
VOUT 11
7 VLED1+
VEE 10
8 VLED1-
VEE 9
* CBLANK
100 DDESAT
+–
VF
+
* RG
+*
RPULL-DOWN
* THESE COMPONENTS ARE ONLY REQUIRED WHEN NEGATIVE GATE DRIVE IS IMPLEMENTED.
Figure 1. Typical Desaturation Protected Gate Drive Circuit, Non-Inverting.
+
VCE
+
VCE
Description of Operation
during Fault Condition
1. DESAT terminal monitors the
IGBT VCE voltage through
DDESAT.
2. When the voltage on the
DESAT terminal exceeds
7 volts, the IGBT gate voltage
(VOUT) is slowly lowered.
3. FAULT output goes low,
notifying the microcontroller
of the fault condition.
4. Microcontroller takes
appropriate action.
Output Control
The outputs (VOUT and FAULT)
of the HCPL-316J are controlled
by the combination of VIN, UVLO
and a detected IGBT Desat
condition. As indicated in the
below table, the HCPL-316J can
be configured as inverting or
non-inverting using the VIN+ or
VIN- inputs respectively. When an
inverting configuration is desired,
VIN+ must be held high and VIN-
toggled. When a non-inverting
configuration is desired, VIN-
must be held low and VIN+
toggled. Once UVLO is not active
(VCC2 - VE > VUVLO), VOUT is
allowed to go high, and the
DESAT (pin 14) detection feature
of the HCPL-316J will be the
primary source of IGBT protection.
UVLO is needed to ensure DESAT
is functional. Once VUVLO+ > 11.6
V, DESAT will remain functional
until VUVLO- < 12.4 V. Thus, the
DESAT detection and UVLO
features of the HCPL-316J work in
conjunction to ensure constant
IGBT protection.
VIN+ VIN-
X
X
Low
X
High
X
X
X
High
Low
UVLO
(VCC2 - VE)
Active
X
X
X
Not Active
Desat Condition
Detected on
Pin 14
X
Yes
X
X
No
Pin 6
(FAULT)
Output
X
Low
X
X
High
VOUT
Low
Low
Low
Low
High



Agilent HCPL-316J
3
Product Overview
Description
The HCPL-316J is a highly
integrated power control device
that incorporates all the
necessary components for a
complete, isolated IGBT gate
drive circuit with fault protection
and feedback into one SO-16
package. TTL input logic levels
allow direct interface with a
microcontroller, and an optically
isolated power output stage
drives IGBTs with power ratings
of up to 150 A and 1200 V. A
high speed internal optical link
minimizes the propagation delays
between the microcontroller and
the IGBT while allowing the two
systems to operate at very large
common mode voltage
differences that are common in
industrial motor drives and other
power switching applications. An
output IC provides local
protection for the IGBT to
prevent damage during
overcurrents, and a second
optical link provides a fully
isolated fault status feedback
signal for the microcontroller. A
built in “watchdog” circuit
monitors the power stage supply
voltage to prevent IGBT caused
by insufficient gate drive
voltages. This integrated IGBT
gate driver is designed to
increase the performance and
reliability of a motor drive
without the cost, size, and
complexity of a discrete design.
Two light emitting diodes and two
integrated circuits housed in the
same SO-16 package provide the
input control circuitry, the output
power stage, and two optical
channels. The input Buffer IC is
VLED1+
7
INPUT IC
VLED1-
8
VIN+
VIN-
1
2
LED1
VCC1 3
D
R
I
V UVLO
E
R
DESAT
SHIELD
13 VCC2
12 VC
11 VOUT
DESAT
14
9,10
VEE
RESET
FAULT
5
6
FAULT
LED2
16 VE
4
GND1
SHIELD
15
VLED2+
OUTPUT IC
designed on a bipolar process,
while the output Detector IC is
designed manufactured on a high
voltage BiCMOS/Power DMOS
process. The forward optical
signal path, as indicated by
LED1, transmits the gate control
signal. The return optical signal
path, as indicated by LED2,
transmits the fault status
feedback signal. Both optical
channels are completely
controlled by the input and
output ICs respectively, making
the internal isolation boundary
transparent to the
microcontroller.
Under normal operation, the
input gate control signal directly
controls the IGBT gate through
the isolated output detector IC.
LED2 remains off and a fault
latch in the input buffer IC is
disabled. When an IGBT fault is
detected, the output detector IC
immediately begins a “soft”
shutdown sequence, reducing the
IGBT current to zero in a
controlled manner to avoid
potential IGBT damage from
inductive overvoltages.
Simultaneously, this fault status is
transmitted back to the input
buffer IC via LED2, where the
fault latch disables the gate
control input and the active low
fault output alerts the
microcontroller.
During power-up, the Under
Voltage Lockout (UVLO) feature
prevents the application of
insufficient gate voltage to the
IGBT, by forcing the
HCPL-316J’s output low. Once
the output is in the high state, the
DESAT (VCE) detection feature of
the HCPL-316J provides IGBT
protection. Thus, UVLO and
DESAT work in conjunction to
provide constant IGBT
protection.







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