Datasheet

ManualsBrandsMicrochip ManualsDriversLED Driver IC SOT-89

Supertex inc.

Supertex inc. ● 1235 Bordeaux Drive, Sunnyvale, CA 94089 ● Tel: 408-222-8888 ● www.supertex.com

CL25

Features

► 5.0 - 90V operating range (V

A-B

)

► 25mA ±10% at 5.0 - 90V

► 0.01%/°C typical temperature coefcient

► No external components (two terminal device)

► Can be paralleled for higher current

Applications

► LED channel lighting

► Industrial lamp indicators

► Accent lighting

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 5.0 - 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. Multiple CL2s 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.

Typical Application Circuit

Simple 90V, 25mA,

Temperature Compensated,

Constant Current, LED Driver IC

LED

25mA

Up to 90V

+ V

LED(total)

Control Circuit

and Temperature

Compensation

Functional Circuit

Diagram

CL25

LED(TOTAL)

Summary of content (6 pages)

PAGE 1
Supertex inc. CL25 Simple 90V, 25mA, Temperature Compensated, Constant Current, LED Driver IC Features General Description Applications A typical application for the CL25 is to drive LEDs with a constant current of 25mA. Multiple CL2s 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. ►► ►► ►► ►► ►► 5.0 - 90V operating range (VA-B) 25mA ±10% at 5.0 - 90V 0.
PAGE 2
CL25 Ordering Information Package Options Device CL25 TO-92 TO-243AA (SOT-89) CL25N3-G CL25N8-G -G indicates package is RoHS compliant (‘Green’) Pin Configuration VB Thermal Characteristics Package Power Dissipation VB θJC VA θJA @TA = 25OC (W) (OC/W) TO-92 0.6 125 170 TO-243AA (SOT-89) 1.3* 15 78* VA VB (OC/W) N/C NC TO-92 (N3) TO-243AA (SOT-89) (N8) NC = No Connect * Mounted on FR4 board; 25mm x 25mm x 1.
PAGE 3
CL25 Equivalent Block Diagram Functional Circuit Diagram VA VA Control Circuit and Temperature Compensation 25mA ±10% VB VB Temperature Characteristics Current, normalized to 25°C 1.02 1.01 1.00 0.99 5V 10V 30V 45V 90V 0.98 -55 -35 -15 5 25 45 65 85 105 Temperature (°C) Output Current vs Voltage 30 25 I A-B (mA) 20 15 10 5 0 0 10 20 30 40 50 60 70 80 90 100 VA-B Supertex inc. ● 1235 Bordeaux Drive, Sunnyvale, CA 94089 ● Tel: 408-222-8888 ● www.supertex.
PAGE 4
CL25 CL25 for Multiple LED Strings VA Up to 90V +VLED(TOTAL) CL25 VB VA VA CL25 VB CL25 VB + ILED 75mA VLED(TOTAL) - CL25 for Higher Current VA VA Up to 90V +VLED(TOTAL) CL25 ILED 25mA VB CL25 ILED 25mA VB VA CL25 ILED 25mA VB VA CL25 VB ILED 25mA + VLED(TOTAL) - Supertex inc. ● 1235 Bordeaux Drive, Sunnyvale, CA 94089 ● Tel: 408-222-8888 ● www.supertex.
PAGE 5
CL25 3-Lead TO-92 Package Outline (N3) D A Seating Plane 1 2 3 L b e1 e c Side View Front View E1 E 3 1 2 Bottom View Symbol Dimensions (inches) A b c D E E1 e e1 L MIN .170 .014† .014† .175 .125 .080 .095 .045 .500 NOM - - - - - - - - - MAX .210 .022† .022† .205 .165 .105 .105 .055 .610* JEDEC Registration TO-92. * This dimension is not specified in the JEDEC drawing. † This dimension differs from the JEDEC drawing. Drawings not to scale.
PAGE 6
CL25 3-Lead TO-243AA (SOT-89) Package Outline (N8) D D1 C E H L 1 2 E1 3 b b1 e A e1 Side View Top View Symbol Dimensions (mm) A b b1 C D D1 E E1 e MIN 1.40 0.44 0.36 0.35 4.40 1.62 2.29 2.00 NOM - - - - - - - - MAX 1.60 0.56 0.48 0.44 4.60 1.83 2.60 2.29 e1 † 1.50 BSC 3.00 BSC H L 3.94 0.73† - - 4.25 1.20 JEDEC Registration TO-243, Variation AA, Issue C, July 1986. † This dimension differs from the JEDEC drawing Drawings not to scale.