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HCPL316J 数据表(PDF) 2 Page - Agilent(Hewlett-Packard)

部件名 HCPL316J
功能描述  2.0 Amp Gate Drive Optocoupler with Integrated (VCE) Desaturation Detection and Fault Status Feedback
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制造商  HP [Agilent(Hewlett-Packard)]
网页  http://www.home.agilent.com
标志 HP - Agilent(Hewlett-Packard)

HCPL316J 数据表(HTML) 2 Page - Agilent(Hewlett-Packard)

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2
UVLO
Desat Condition
Pin 6
VIN+
VIN-
(VCC2 - VE)
Detected on
(FAULT)
VOUT
Pin 14
Output
X
X
Active
X
X
Low
X
X
X
Yes
Low
Low
Low
X
X
X
X
Low
X
High
X
X
X
Low
High
Low
Not Active
No
High
High
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
Figure 1. Typical Desaturation Protected Gate Drive Circuit, Non-Inverting.
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.
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.
+
+
*
*
*
CBLANK
DDESAT
RPULL-DOWN
16
15
14
13
12
11
10
9
1
2
3
4
5
6
7
8
VE
VLED2+
DESAT
VCC2
VC
VOUT
VEE
VEE
VIN+
VIN-
VCC1
GND1
RESET
FAULT
VLED1+
VLED1-
HCPL-316J
+
µC
RF
VF
+
RG
VCE
VCE
+
+
100
* THESE COMPONENTS ARE ONLY REQUIRED WHEN NEGATIVE GATE DRIVE IS IMPLEMENTED.


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