ALSTOM LE109A-1 Control Card Power System

Description

ALSTOM LE109A-1 Control Card Power System

ALSTOM LE109A-1 Control Card Power System

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 1μA. 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.

LE109A-1 Applications
The AS1111 devices are ideal for LED displays and keyboard backlights, as well as lighting management units for battery powered audio devices such as
• MP3 and CD players,
• Mobile and cordless phones,
• PDAs,
• Portable DVD players, and
• Consumer electronics.

LE109A-1 Code Markup Description Delivery Form Packaging
AS1111A-BLT CY dual LED driver with enabled and 80mA LED current per channel magnetic tape and reel 6-pin WL-CSP 0.4mm spacing
AS1111B-BWLT CZ Triple LED Driver with Enable and 40mA LED Current per Channel Tape and Reel 6-Pin WL-CSP 0.4mm Spacing
AS1111C-BDFT AAR quad LED driver with enabled and 40mA LED current per channel magnetic tape and reel MLPD-8 wire (2mm x 2mm)

LE109A-1 RoHS Compliant & ams Green Statement

RoHS: The term RoHS compliant means that ams AG products fully comply with current RoHS directives. Our semiconductor products do not contain any chemicals for all 6 substance categories, including the requirement that lead not exceed 0.1% by weight in homogeneous materials. Where designed to be soldered at high temperatures, RoHS compliant products are suitable for use in specified lead-free processes. ams Green (RoHS compliant and no Sb/Br): ams Green defines that in addition to RoHS compliance, our products are free of Bromine (Br) and Antimony (Sb) based flame retardants (Br or Sb do not exceed 0.1% by weight in homogeneous material).

Important Information: The information provided in this statement represents ams AG knowledge and belief as of the date that it is provided. ams AG bases its knowledge and belief on information provided by third parties, and makes no representation or warranty as to the accuracy of such information. Efforts are underway to better integrate information from third parties. ams AG has taken and continues to take reasonable steps to provide representative and accurate information but may not have conducted destructive testing or chemical analysis on incoming materials and chemicals. ams AG and ams AG suppliers consider certain information to be proprietary, and thus CAS numbers and other limited information may not be available for release.

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