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LX2206 EVALUATION BOARD USER GUIDE
LX2206 DUAL LEVEL BATTERY
CHARGER
®
TM
Copyright © 2002
Microsemi Page 1
Rev. 1.1, 2006-11-17
Integrated Products
11861 Western Avenue, Garden Grove, CA. 92841, 714-898-8121, Fax: 714-893-2570
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LX2206 EVALUATION BOARD USER GUIDE TABLE OF CONTENTS Introduction ............................................................................................................................................................ 3 Schematic .............................................................................................................................................................. 4 IC Block Diagram ..............................................................................
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LX2206 EVALUATION BOARD USER GUIDE INTRODUCTION TO PRODUCT The LX2206 Evaluation Board is available from Microsemi for evaluating the performance of the LX2206 Battery Charger integrated circuit. The component sizes used on the evaluation board facilitate easy probing, however, in practice, smaller component sizes are recommended to minimize the circuit physical size. KEY FEATURES Two independent programmable charge currents 0.5% Float voltage tolerance Charging up to 1A.
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LX2206 EVALUATION BOARD USER GUIDE SCHEMATIC FOR LX2206 EVALUATION BOARD STATUS R6 2.49k CHARGING R3 2.49k 1 3 C3 FULL IN STAT PWR 0.47u 2 C1 CMP 10uF POWER 6 R7 H/L 4 ATTACHED GND DCOK LX2206 5 R8 2.49k 121k SD 9 R1 Battery TMP 8 1.00k Temperature H HCP 10 R9 BAT Lockout 7 Not LCP R10 L GND Sensing Used 24.9k I PGM BP R2 NTC 1.00k OFF RT1 ON RTN SHUTDOWN BAT TEMP R5 R4 19.6k 110k Current BAT+ Programming C2 10uF RTN BATTERY Figure 1 – LX2206 Evaluation Board Schematic Co
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LX2206 EVALUATION BOARD USER GUIDE BLOCK DIAGRAM - + SD ENABLE DCOK UVLO STAT TMP CHARGE CONTROL IN BAT CHARGE TERMINATION CONTROL CONSTANT VOLTAGE CONTROL TEMPERATURE CONTROL CONDITIONING THRESHOLD H/L COND. CURRENT LCP LOW CHARGING CURRENT HCP HIGH CHARGING CURRENT GND Figure 2 – Simplified Block Diagram Copyright © 2002 Microsemi Page 5 Rev. 1.1, 2006-11-17 Integrated Products 11861 Western Avenue, Garden Grove, CA. 92841, 714-898-8121, Fax: 714-893-2570
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LX2206 EVALUATION BOARD USER GUIDE and the Negative terminal to the RTN LX2206 EVAL CONNECTIONS terminal. Connections: The LX2206 Evaluation Board has 2) Apply a +5V power source to the PWR one power input and one power output connection. terminal and the power supply return to the GND terminal. 3) Move the SHUTDOWN jumper to the ON VOLTAGE FUNCTION PIN NAME position. 4) The POWER ATTACHED and CHARGING Input Power PWR 5V +/- 0.65V LEDs should be lit when the battery is char
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LX2206 EVALUATION BOARD USER GUIDE LX2206 TYPICAL TEST HOOKUP BAT TEMP NTC RTN RT1 INTEGRATED PRODUCTS - Single Cell Lithium Ion L Battery R1 H + LX2206 ON PWR R2 OFF + GND 5V Power FULL STATUS POWER CHARGING Supply ATTACHED LX2206 DUAL LEVEL LITHIUM-ION - BATTERY CHARGER EVAL PCB Figure 3 – LX2206 Typical Test Hookup PCB LAYOUT RECOMMENDATIONS It is recommended that C1 and C2 be located within have a good thermal path to ambient to dissipate 1cm of the LX2206. The CMP
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LX2206 EVALUATION BOARD USER GUIDE LX2206 PRINTED CIRCUIT BOARD LAYOUT BAT TEMP NTC RTN RT1 INTEGRATED PRODUCTS L R1 H LX2206 ON PWR R2 OFF GND FULL STATUS POWER CHARGING ATTACHED LX2206 DUAL LEVEL LITHIUM-ION BATTERY CHARGER EVAL PCB Figure 4 – LX2206 Evaluation Board Layout Copyright © 2002 Microsemi Page 8 Rev. 1.1, 2006-11-17 Integrated Products 11861 Western Avenue, Garden Grove, CA. 92841, 714-898-8121, Fax: 714-893-2570 RTN BAT+ 1 BATTERY C1 C2 R8 C3 R9 R10 R6 R5 R3 R4 R
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LX2206 EVALUATION BOARD USER GUIDE LX2206 EVALUATION BOARD BILL OF MATERIALS MISCELLANEOUS COMPONENTS Line Reference Part Description Manufacturer & Part # Case Qty Item Designators 1 Microsemi IC – Dual Level Li-Ion Charger MICROSEMI LX2206ILD 3x3 MLP U1 1 2 LED - Amber PANASONIC LNJ414K8YRA 0603 CHARGING 1 3 LED - Red PANASONIC LNJ214K8ARA 0603 FULL 1 4 LED - Green PANASONIC LNJ314G8TRA 0603 POWER ATTACH 1 5 Thermistor – NTC, 100k VISHAY NTHS0402N01N1003J 0402 RT1 1 6
