HCPL-316J-500E Datasheet, PDF (26/33 Pages) AVAGO TECHNOLOGIES LIMITED – 2.5 Amp Gate Drive Optocoupler with Integrated (VCE) Desaturation Detection and Fault Status Feedback

User-Configuration of the HCPL-316J Input Side
The V_IN+, V_IN-, FAULT and RESET input pins make a wide
variety of gate control and fault configurations pos-
sible, depending on the motor drive requirements. The
HCPL-316J has both inverting and noninverting gate
control inputs, an open collector fault output suitable
for wired ‘OR’ applications and an active low reset input.
Driving Input pf HCPL-316J in Non-Inverting/Inverting
Mode
The Gate Drive Voltage Output of the HCPL-316J can
be configured as inverting or non-inverting using the
V_IN– and V_IN+ inputs. As shown in Figure 68, when a
non-inverting configuration is desired, V_IN– is held low
by connecting it to GND1 and V_IN+ is toggled. As shown
in Figure 69, when an inverting configuration is desired,
V_IN+ is held high by connecting it to V_CC1 and V_IN– is tog-
gled.
1 V_IN+
HCPL-316J
2 V_IN-
3 V_CC1
μC
+
–
4 GND1
5 RESET
6 FAULT
7 V_LED1+
8 V_LED1-
Figure 68. Typical input configuration, noninverting.
Local Shutdown, Local Reset
As shown in Figure 70, the fault output of each HCPL-
316J gate driver is polled separately, and the individual
reset lines are asserted low independently to reset the
motor controller after a fault condition.
Global-Shutdown, Global Reset
As shown in Figure 71, when configured for inverting op-
eration, the HCPL-316J can be configured to shutdown
automatically in the event of a fault condition by tying
the FAULT output to V_IN+. For high reliability drives, the
open collector FAULT outputs of each HCPL-316J can be
wire ‘OR’ed together on a common fault bus, forming a
single fault bus for interfacing directly to the micro-con-
troller. When any of the six gate drivers detects a fault,
the fault output signal will disable all six HCPL-316J gate
drivers simultaneously and thereby provide protection
against further catastrophic failures.
1 V_IN+
HCPL-316J
2 V_IN-
3 V_CC1
μC
+
–
4 GND1
5 RESET
6 FAULT
7 V_LED1+
8 V_LED1-
Figure 69. Typical Input Configuration, Inverting.
1 V_IN+
2 V_IN-
HCPL-316J
μC
+
–
3 V_CC1
4 GND1
5 RESET
6 FAULT
7 V_LED1+
8 V_LED1-
Figure 70. Local shutdown, local reset configuration.
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