Connection Diagram

LLP-14 DIP Package, 4mmx3mmx0.8mm

NS Package Number SDA14A

20085002

Pin Description

Pin#

Pin Name

Pin Description

1

C2+

Connect this pin to the positive terminal of C2.

2V

OUT

Regulated Charge pump output (4.35V).

3

C1+

Connect this pin to the positive terminal of C1.

4

D3

Current source output 3. Connect directly to LED.

5

D2

Current source output 2. Connect directly to LED.

6

D1

Current source output 1. Connect directly to LED.

7I

SET

Current set input. Value of resistor tied between I

output currents.

8

NC

No Connect

9

EN

Enable Input High = On, Low = Shutdown

10

PWM

Current Source Modulation pin. High = On, Low = Off. Applying a PWM signal

to this pin allows the regulated current sources to be to be modulated without

shutting down the V

11

V

IN

Power supply voltage input.

12

C2-

Connect this pin to the negative terminal of C2.

13

GND

Ground connection.

14

C1-

Connect this pin to the negative terminal of C1.

Ordering Information

Order Number

Package Type

Package Marking

Supplied As:

LM3570SD

SDA14A

L3570

1000 units on Tape-and-Reel

LM3570SDX

SDA14A

L3570

3500 units on Tape-and-Reel

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