AS1111A AMSCO
Document overview
- Manufacturer or author: Provided By digicamel.com
- PDF pages: 10
Technical content
DN[Document ID] ams Eval Kit Manual Page 1 [v1-00] 2015-Jan-20 Document Feedback AS1111A Standard Board AS1111A-WL_EK_ST
ams Eval Kit Manual Page 2 [v1-00] 2015-Jan-20 Document Feedback Content Guide
ams Eval Kit Manual Page 3 [v1-00] 2015-Jan-20 Document Feedback
1 Introduction
This document describes the AS1111A Evaluation Kit. The AS1111A is a LED driver designed to match current source bias for any color LED, including white and blue. The devices can drive up to 2 high-current LEDs, and the LED current is programmable using an external resistor (RSET). The AS1111A LED currents are 460 x ISET (per LED, type) at an LED cathode voltage (VSAT) of 150mV and 650 x ISET (type) at a VSAT of 1V, where ISET is the current through RSET connected to pin CTRL. The AS1111A incorporate a chip-enable feature via pin EN. When the devices is disabled, the supply current drops down to less than 1µA. The AS1111A are available in a 6-pin WL-CSP package with 0.4mm pitch.
2 Kit Content
Figure 1: Kit Content Label Item Comment
1 Evaluation Board AS1111A (6-pin WL-CSP package with
0.4mm pitch)
3 Getting Started
Connect your supply to GND, VSET and VLED. Be shure that the jumpers are set like you can see in the Hardware Description below.
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4 Hardware Description
Figure 2: Evaluation Board Overview Label Name Designator Description Info A VSET VSET Voltage Voltage to set the LED Current B GND GND Ground C VLED VLED LED Supply Supply Voltage for the LED´s D AS1111A U1 LED – driver E LED´s D1, D2 Figure 3: Jumper and device locations A B C A D E B C D E
ams Eval Kit Manual Page 5 [v1-00] 2015-Jan-20 Document Feedback Label Name Designator Description Info A J_EN J_EN Enable or Disable the LED – driver GND - disabled VSET - enabled B RSET J_Rset Connect different kind of RSET or you can make a parallel connection. Depending on Jumper J_CTRL. C J_CTRL J_CTRL Connect / Disconnect the soldered (51k) REST resistor D J1 J1 Jumper Connect / Disconnect LED´s E LED´s J_D1, J_D2 Female Header Connect different kind of LED´s Figure 4: Measurement Points Label Name Designator Description Info A VSET VSET Voltage to set the LED current Measurement Point B LED Voltage VLED Supply Voltage for the LED´s Measurement Point C GND GND Ground Measurement Point D Enable EN VEN 2.2V: VOUT is enabled VEN 0.5V: VOUT is disabled Measurement Point E GND GND Ground Measurement Point A B C 1 E D
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5 Schematics, Layers and BOM
5.1 Schematic of AS1111A Evaluation Board
Figure 5: Schematic D D C C B B A A Size Date Project Title Revision Sheet ofOriginator mkc AS1111A EvalboardA4 1.0 11.12.2013 GNDGND J_EN EN GND Rset 51k Vset J_RsetVset J_D1 J_D2 VLED VLED VLED VSET GND VLED1 Vset GND TP_EN TP_GND 1 TP_VLED1 TP_VSET TP_GND1 LED LED CTRL EN VLED GND GND 1µF Vset GND 1µF 1µF VLED1 VLED1 VLED1J1 I1/2 A3 I3/4 A1 AS1111A LED DriverENB1 CTRLB3 GNDA2 GNDB2 AS1111A J_CTRL CTRL
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5.2 Layers
Figure 6: Top Layer Figure 7: Bottom Layer
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5.3 Bill of Materials
Figure 8: BOM Bill of Materials AS1111A Evalboard Company: ams AG Originator: mkc PCB Name: AS1111A Evalboard PCB Version: 1.0 Report Date: 11.12.2013 # Designator Comment Component_Description Manufacturer Manufacturer Part Number Quantity
1 C1, C2, C3 1µF CAP CER 1UF 16V 20%
2 D1, D2 LED LED 3.2X1.6MM 630NM RED CLR SMD Kingbright APT3216SURCK 2 J1, J_CTRL 2 PIN, CTRL 3M - 961102-6404-AR - CONNECTOR, HEADER, 2POS, 1ROW, 2.54MM 3M 961102-6404-AR 2 J_D1, J_D2, J_Rset D1, D3 SAMTEC - SSA-102-S-G - BUCHSE, 2.54MM, LPT, 2KONT SAMTEC SSA-102-S-G 3 J_EN EN 3M - 961103-6404-AR - BOARD TO BOARD, HEADER, 3POS, 1ROW 3M 961103-6404-AR 1 Rset 51k MULTICOMP - MC01W0805151K - WIDERSTAND, 51K, 0.1W, 1%, 0805 MULTICOMP MC01W0805151K 1 TP_EN Testpoint VERO - 20-313139 - PRÜFPUNKT, PCB, WEISS, PK100 VERO 20-313139 1 TP_GND, TP_GND1 Testpoint VERO - 20-2137 - PRÜFPUNKT, PCB, SCHWARZ, PK100 VERO 20-2137 2 TP_VLED, TP_VSET Testpoint VERO - 20-313137 - PRÜFPUNKT, PCB, ROT, PK100 VERO 20-313137 2
10 U1 AS1111A AS1111A-WL_EK_ST 1
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6 Ordering & Contact Information
AS1111A-WL_EK_ST AS1111A Eval Kit Standard Board Buy our products or get free samples online at: www.ams.com/ICdirect Technical Support is available at: www.ams.com/Technical-Support Provide feedback about this document at: www.ams.com/Document-Feedback For further information and requests, e-mail us at: ams_sales@ams.com For sales offices, distributors and representatives, please visit: www.ams.com/contact Headquarters ams AG Tobelbaderstrasse 30
8141 Unterpremstaetten
Austria, Europe Tel: +43 (0) 3136 500 0 Website: www.ams.com
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7 Copyrights & Disclaimer
Copyright ams AG, Tobelbader Strasse 30, 8141 Unterpremstaetten, Austria-Europe. Trademarks Registered. All rights reserved. The material herein may not be reproduced, adapted, merged, translated, stored, or used without the prior written consent of the copyright owner. Demo Kits, Evaluation Kits and Reference Designs are provided to recipient on an “as is” basis for demonstration and evaluation purposes only and are not considered to be finished end -products intended and fit for general consumer use, commercial applications and applications with special requirements such as but not limited to medical equipment or automotive applications. Demo Kits, Evaluation Kits and Reference Designs have not been tested for compl iance with electromagnetic compatibility (EMC) standards and directives, unless otherwise specified. Demo Kits, Evaluation Kits and Reference Designs shall be used by qualified personnel only. ams AG reserves the right to change functionality and price of Demo Kits, Evaluation Kits and Reference Designs at any time and without notice. Any express or implied warranties, including, but not limited to the implied warranties of merchantability and fitness for a particular purpose are disclaimed. Any claims and demands and any direct, indirect, incidental, special, exemplary or consequential damages arising from the inadequacy of the provided Demo Kits, Evaluation Kits and Reference Designs or incurred losses of any kind (e.g. loss of use, data or profits or business interruption however caused) as a consequence of their use are excluded. ams AG shall not be liable to recipient or any third party for any damages, including but not limited to personal in jury, property damage, loss of profits, loss of use, interruption of business or indirect, special, incidental or consequential damages, of any kind, in connection with or arising out of the furnishing, performance or use of the technical data herein. No o bligation or liability to recipient or any third party shall arise or flow out of ams AG rendering of technical or other services.