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HCPL316J 데이터시트(PDF) 28 Page - Agilent(Hewlett-Packard)

부품명 HCPL316J
상세설명  2.0 Amp Gate Drive Optocoupler with Integrated (VCE) Desaturation Detection and Fault Status Feedback
PDF  33 Pages
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제조업체  HP [Agilent(Hewlett-Packard)]
홈페이지  http://www.home.agilent.com
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HCPL316J 데이터시트(HTML) 28 Page - Agilent(Hewlett-Packard)

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28
RC + RG = [VCC2 – VOH – (VEE)]
IOH,PEAK
= [4 V – (-5 V)]
0.5 A
= 18
Ω
➯ RC = 8 Ω
See “Power and Layout
Considerations” section for more
information on calculating value
of RG.
Figure 73a. Safe Hardware Reset for Non-Inverting
Input Configuration (Automatically Resets for Every
VIN+ Input).
User-Configuration of the
HCPL-316J Output Side
RG and Optional Resistor RC:
The value of the gate resistor RG
(along with VCC2 and VEE)
determines the maximum amount
of gate-charging/discharging
current (ION,PEAK and IOFF,PEAK)
and thus should be carefully
chosen to match the size of the
IGBT being driven. Often it is
desirable to have the peak gate
charge current be somewhat less
Figure 73b. Safe Hardware Reset for Non-Inverting Input
Configuration.
Figure 73d. Safe Hardware Reset for Inverting Input
Configuration (Automatically Resets for Every VIN-
Input).
Figure 73c. Safe Hardware Reset for Inverting Input
Configuration.
than the peak discharge current
(ION,PEAK < IOFF,PEAK). For this
condition, an optional resistor
(RC) can be used along with RG
to independently determine
ION,PEAK and IOFF,PEAK without
using a steering diode. As an
example, refer to Figure 74.
Assuming that RG is already
determined and that the design
IOH,PEAK = 0.5 A, the value of RC
can be estimated in the following
way:
1
2
3
4
5
6
7
8
VIN+
VIN-
VCC1
GND1
RESET
FAULT
VLED1+
VLED1-
HCPL-316J
µC
VCC
VIN+/
RESET
FAULT
1
2
3
4
5
6
7
8
VIN+
VIN-
VCC1
GND1
RESET
FAULT
VLED1+
VLED1-
HCPL-316J
µC
VCC
RESET
FAULT
VIN+
1
2
3
4
5
6
7
8
VIN+
VIN-
VCC1
GND1
RESET
FAULT
VLED1+
VLED1-
HCPL-316J
µC
VCC
RESET
FAULT
VIN-
VCC
1
2
3
4
5
6
7
8
VIN+
VIN-
VCC1
GND1
RESET
FAULT
VLED1+
VLED1-
HCPL-316J
µC
VCC
RESET
FAULT
VIN-
VCC



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