CL325 Просмотр технического описания (PDF) - Supertex Inc

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производитель

CL325

3-Channel 25mA Linear LED Driver

Supertex Inc 

CL325

Lowering CL325 Power Dissipation: Zener Diode

VLL

ZDROP

Host

Controller

CIN

100nF

8

VIN

REG VDD

1 EN1

2 EN2

3 EN3

7

OUT1

6

OUT2

5

OUT3

VZ < (VLL(MIN) - 6.5V)

where: VZ = Zener Voltage

VLL(MIN) = minimum supply voltage

GND

CL325

4

Pin Description

Pin #

Name

1

EN1

2

EN2

3

EN3

4

GND

5

OUT3

6

OUT2

7

OUT1

8

VIN

Underside

Plate

GND

Description

Output enable, active low.

Circuit common.

Constant current output (sinking). Connect the cathodes of the LEDs to these pins.

Supply voltage. 6.5V to 90V. Bypass locally with a 100nF capacitor to ground.

The exposed underside plate is internally connected to the GND pin. The plate may either

be left floating or connected to ground. Solder the plate to an exposed copper area on the

PCB for heatsinking purposes (see recommended layout).

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

6

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