Optically Isolated Gate Drive Circuit
CPC1580
Features
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Drives External Power MOSFET
Low LED Current (2.5mA)
Requires No External Power Supply
Load Voltages up to 65V
High Reliability
Small 8-pin Surface Mount Package
3750V
rms
Input/Output Isolation
Description
The CPC1580 optical gate driver provides isolated
control of a discrete power MOSFET transistor without
the need of an external power supply. Control of the
power MOSFET transistor is accomplished by the
application of sufficient input LED current to activate
the driver circuitry.
On the load side, an external storage capacitor and an
internal bootstrap diode enable the internal
photovoltaic and gate driver circuitry to provide fast
output switching characteristics by supplying the
charge necessary to satisfy the MOSFET’s bias
requirements.
Provided in a small 8-pin package, the CPC1580
provides 3750V
rms
of input-to-output isolation.
Applications
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Industrial Controls
Instrumentation
Medical Equipment Isolation
Electronic Switching
I/O Subsystems
Appliances
Approvals
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UL recognized component: File # E76270
Ordering Information
Part
CPC1580P
CPC1580PTR
Description
8-Pin Flatpack (50/Tube)
8-Pin Flatpack (1000/Reel)
Figure 1. CPC1580 Application Circuit Diagram
CPC1580
1
4
NC
NC
8 V
CAP
7
C
ST
V+
V
D
5
LED +
2
V
G
Q1
LED -
3
6
V
S
V-
DS-CPC1580 - R00G
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1
CLARE [ CLARE, INC. ]
