AS1111 datasheet(1/22 Pages) AMSCO

No de pièce	AS1111

Description	Low?밆ropout LED Drivers

PDF	22 Pages

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Fabricant	AMSCO [ams AG]

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ams Datasheet

Page 1

[v1-06] 2015-Apr-07

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AS1111

Low–Dropout LED Drivers

The AS1111A/AS1111B/AS1111C are LED drivers designed to

match current source bias for any color LED, including white

and blue. The devices can drive up to 4 high-current LEDs, and

the LED current is programmable using an external resistor

(RSET).

The AS1111A LED currents are 460 x ISET (per LED, typ) at an LED

cathode voltage (VSAT) of 150mV and 650 x ISET (typ) at a VSAT

of 1V, where ISET is the current through RSET connected to pin

CTRL.

The AS1111B & AS1111C LED currents are

230 x ISET (per LED, typ) at a VSAT of 150mV and 325 x ISET (typ)

at a VSAT of 1V.

All AS1111 versions incorporate a chip-enable feature via pin

EN. When the devices are disabled, the supply current drops

down to less than 1

μA. The AS1111A and AS1111B are available

in a 6-pin WL-CSP package with 0.4mm pitch. The AS1111C is

available in an 8-pin MLPD (2x2mm) package with 0.5mm pitch.

Ordering Information and Content Guide appear at end of

datasheet.

Key Benefits & Features

The benefits and features of AS1111, Low–Dropout LED Drivers

are listed below:

Figure 1:

Added Value of Using AS1111

Benefits

Features

High efficient

• Ultra Low Voltage Drop: less than 150mV

Supports a variety of end applications

• Analog and PWM Brightness Control

• Up to 80mA per LED (AS1111A)

• Up to 40mA per LED (AS1111B, AS1111C)

Extended battery life

• Active-Low Shutdown Mode

• Low Shutdown Current: less than 1

μA

Suitable for EMF sensitive environment

• No electromagnetic interference

• No switching noise

Small PCB area

• Less external components needed

Cost effective, small package

• 6-pin WL-CSP with 0.4mm pitch

• 8-pin MLPD (2x2mm) with 0.5mm pitch

General Description

Numéro de pièce similaire - AS1111

Fabricant	No de pièce	Fiches technique	Description
ams-OSRAM AG	AS1111	1Mb / 23P	Low–Dropout LED Drivers v1-06 2015-Apr-07
ams AG	AS1111A	927Kb / 10P	This document describes the AS1111A Evaluation Kit
ams-OSRAM AG	AS1111A-BWLT	1Mb / 23P	Low–Dropout LED Drivers v1-06 2015-Apr-07
ams-OSRAM AG	AS1111B-BWLT	1Mb / 23P	Low–Dropout LED Drivers v1-06 2015-Apr-07
ams AG	AS1111C	759Kb / 10P	This document describes the AS1111C Evaluation Kit

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