CPC1580 Datasheet, PDF (1/11 Pages) Clare, Inc. – Optically Isolated Gate Drive Circuit

CPC1580
Optically Isolated Gate Drive Circuit
Features
• 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
Applications
• Industrial Controls
• Instrumentation
• Medical Equipment Isolation
• Electronic Switching
• I/O Subsystems
• Appliances
Approvals
• UL recognized component: File # E76270
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.
Ordering Information
Part
CPC1580P
CPC1580PTR
Description
8-Pin Flatpack (50/Tube)
8-Pin Flatpack (1000/Reel)
Figure 1. CPC1580 Application Circuit Diagram
CPC1580 _{8 VCAP}
C_ST
1 _NC
4
NC
7
V+
V
D
2
LED +
LED - ³
5
V_G
Q1
6
V-
V
S
DS-CPC1580 - R00G
www.clare.com
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