CL25
Simple 90V, 25mA, Temperature Compensated,
Constant Current, LED Driver IC
Features
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5.0V to 90V operating range (V
A-B
)
25mA ±10% at 5-90V
0.01% / °C typical temperature coefficient
No external components (two terminal device)
Can be paralleled for higher current
General Description
The Supertex CL25 is a high voltage, temperature
compensated, constant current source. The device is trimmed
to provide a constant current of 25mA ± 10% at an input
voltage of 5-90V. No external components are required. The
device can be used as a two terminal constant current source
or constant current sink.
A typical application for the CL25 is to drive LEDs with a
constant current of 25mA. They can also be used in parallel
to provide higher currents such as 50mA, 75mA or 100mA.
The device is available in TO-92 and TO-243AA (SOT-89)
packaging.
Applications
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LED channel lighting
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Industrial lamp indicators
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Accent lighting
Typical Application Circuit
V
A
Functional Circuit Diagram
V
A
CL25
Up to 90V
+ V
LED(total)
V
B
Control Circuit
and Temperature
Compensation
+
I
LED
25mA
V
LED(total)
V
B
-
SUPERTEX [ Supertex, Inc ]
