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AS1109 LED Driver IC

8-channel 100mA direct LED driver IC

Features

Open/Short error detection
Low current diagnostic mode
100mA output current
50MHz SPI interface

Benefits

Improved picture quality & reduced maintenance cost through identifying defect LEDs & its position
No flickering during LED test
Highest brightness of LEDs
Allows high resolution external PWM via SPI

Product parameters

Outputs [#]	8
LED Current per Output [mA]	100
Features
Error Detection	Yes
Read-Back	Yes
LED-to-LED Matching [%]	2
Supply Voltage [V]	3.0 to 5.5
Package	SOIC150-16 \ SSOP150-16 \ TQFN(4x4)-16

General Description

The AS1109 is a 100mA 8-channel direct LED driver IC and offers on-chip diagnostics. It can detect open/short LED position during operation and offers a (flicker-free) low current diagnostic mode.

Not Recommended for New Designs

ams AG is discontinuing production of this device. Final lifetime buy order must be placed by June 30, 2021. Please contact your local sales representative for further information.

This product suits for the following applications:

Public information displays
Stadium displays
Illumination

Tools

Title	Category	Headline	Buy
AS1109EvalKit	Application Board	Evaluation Kit for AS1109

Technical Documents

	Type	Description	Language
	Datasheet	Document version 1.21	English
	Application Note	LED matrix display	English

Environmental Documents

Type	Description	Language
Material Declaration Form	MDF_176560035_AS1109-BSOU	English
Material Declaration Form	MDF_176560035_AS1109-BSOT	English
Material Declaration Form	MDF_176560037_AS1109-BQFT	English
Material Declaration Form	MDF_176560037_AS1109-BQFR	English
RoHS Certificate	RoHS Certificate_AS1109	English

Notifications

	Type	Description	Language
	EoL Notification	AS1xxx, AS25xx, AS3xxx, AS73211, AS89020, SL900A, TMD4704 (issued 2020-Dec)	English

Other Information

	Type	Description	Language
	Block Diagram	AS1109 Block Diagram	English