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DS20005448A-page 1

CL2

Features

• 20 mA ±10% at 5.0 - 90V

• 0.01%/°C typical temperature coefficient

• Available in TO-243AA (SOT-89), TO-252(D-

PAK), & TO-92 packages

• Can be paralleled for higher current

Applications

• LED driver

• Industrial lamp indicators

• Signage

• Accent lighting

• Automotive

• Constant current source

• Constant current sink

Description

CL2 is a high voltage, temperature compensated, con-

stant-current source. The device is trimmed to provide

a constant current of 20 mA ±10% at an input voltage

of 5–90V. The device can be used as a two-terminal,

constant-current source or constant-current sink.

A typical application for the CL2 is to drive LEDs with a

constant current of 20 mA. Multiple CL2s can also be

used in parallel to provide higher currents such as

40 mA, 60 mA or 80 mA. The device is available in TO-

243AA (SOT-89), TO-252 (D-PAK), and TO-92 pack-

ages.

Package Type

TO-92

See Table 2-1 for pin information

TO-252 (D-PAK)

TO-243AA (SOT-89)

VA

N/C

VB

VB

NC

VA

VB

VA

N/C

VB

Simple 90V, 20mA, Temperature Compensated,

Constant-Current LED Driver IC