ZXLD1100 데이터 시트보기 (PDF) - Zetex => Diodes

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ZXLD1100

ADJUSTABLE LED DRIVER WITH INTERNAL SWITCH AND OPEN CIRCUIT PROTECTION IN SC70-6

Zetex => Diodes 

ZXLD1100

PIN DESCRIPTION

PIN NO.

1

2

3

NAME

LX

GND

FB

4

EN

5

VSENSE

6

VIN

DESCRIPTION

Output of NDMOS switch

Ground (0V)

Feedback pin for current control loop (connect resistor R1

from this pin to GND for output current I=100mV/ R1)

Enable input (active high to turn on device)

Also used to adjust output current by PWM signal.

Connect to Vin for permanent operation.

Output voltage sense (used for open circuit protection).

Connect to GND if not required.

Input voltage (2.5V to 5.5V). Decouple with capacitor close

to device.

BLOCK DIAGRAM

SEMICONDUCTORS

4

ISSUE 4 - JULY 2004

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