AL5802

Document number: DS35516 Rev. 9 - 2

2 of 11

www.diodes.com

March 2014

© Diodes Incorporated

AL5802

Pin Descriptions

Pin Number

Name

Function

1

OUT

Open-collector LED driver output

2

BIAS

Biases the open collector output transistor

3

EN

Enable pin for PWM dimming. Provides access to the base of Q2 and collector of Q1

4

GND

Ground reference point for setting LED current

5

FB

Feedback pin.

Should be connected to pin 6.

6

REXT

Current sense pin. LED current sensing resistor should be connected from here to GND.

Functional Block Diagram

Fig. 1 Block Diagram

Absolute Maximum Ratings

Symbol

Characteristics

Values

Unit

Output voltage relative to GND

30

V

BIAS voltage relative to GND (Note 4)

30

V

LED voltage relative to GND

6

V

EN voltage relative to GND

6

V

REXT voltage relative to GND

6

V

Output current

150

mA

Operating junction temperature

-40 to +150

°C

Storage temperature

-55 to +150

°C

These are stress ratings only. Operation outside the absolute maximum ratings may cause device failure.

Operation at the absolute maximum rating for extended periods may reduce device reliability.

Note:

4. With pins 5 and 6 connected together.