LX2203 EVALUATION BOARD USER GUIDE LX2203 SINGLE CELL LITHIUM ION BATTERY CHARGER I N T E G R A T E D Copyright © 2004 Rev. 1.0, 2004-11-11 P R O D U C T S Microsemi Integrated Products 11861 Western Avenue, Garden Grove, CA. 92841, 714-898-8121, Fax: 714-893-2570 Page 1 LX2203 EVALUATION BOARD USER GUIDE INTRODUCING TO PRODUCT The LX2203 Evaluation Board (EB) is available from Microsemi for evaluating the performance of the LX2203 battery charger integrated circuit. (See picture 1) . The key features to be shown include : Conditioning mode, Top off charge, inherent load disconnect and 1A constant current capability. KEY FEATURES • • • • • • • • • Small, High Power 10-lead MLP package No Sense Resistor Required Full Capacity Charging Always Cool Running 4.2V Applications (Consult sales for 4.1V applications) Tolerates 5V + 10% Wall Supply Regulation Conditioning Mode For Deep Discharge Topping Charge For Long Periods Of Non-Use Inherent Load Disconnect APPLICATIONS • • • • • • Batteries with 100mAH to 1AH ratings Cell Phones PDAs Charging cradles Digital Cameras Low cost single Li-ion cell chargers PART SPECIFIC INFORMATION Part Number LX2203CLD Product Li-Ion Battery Charger TABLE 1 – PART INFORMATION IC LX2203 EVALUATION BOARDS LX2203 EVAL KIT TABLE 2 – EVALUATION BOARD INFORMATION Copyright © 2004 Rev. 1.0, 2004-11-11 Microsemi Integrated Products 11861 Western Avenue, Garden Grove, CA. 92841, 714-898-8121, Fax: 714-893-2570 Page 2 LX2203 EVALUATION BOARD USER GUIDE SCHEMATIC FOR LXE ON OFF R2 100K C3 0.1µF VIN VIN BAT P3 STAT C1 10µF 6.3V VIN BAT C2 10µF 6.3V STAT LX2203 CMP R1 470 R3 150K CTP EN GND CCP R4 75K GND GND3 Figure 1 – LX2203 Evaluation Board Schematic Copyright © 2004 Rev. 1.0, 2004-11-11 Microsemi Integrated Products 11861 Western Avenue, Garden Grove, CA. 92841, 714-898-8121, Fax: 714-893-2570 Page 3 LX2203 EVALUATION BOARD USER GUIDE LX2203 EVAL HOOK UP CONNECTIONS The following is a demonstration scenario that can be used to evaluate the LX2203 (See Figure 3): The LX2203 EVAL KIT has three test points and 1 connector:: Function Input Power Ground Battery Directions for hook up (AC adapter only mode): Label On Board VIN+ GND, GND3 P3 1) 2) 3) JUMPERS 4) Place ENABLE jumper to OFF position. Connect a 1AH single cell Lithium Ion battery to the P3 terminal. Apply a 5.00V power supply (>2A) between VIN+ and GND test points. Move ENABLE jumper to the ON position. The LX2203 Evaluation Board has 1 jumper. The jumper has two possible positions and is designed to always be installed in one position or the other. The function of the jumper is as follows: Jumper Enable Copyright © 2004 Rev. 1.0, 2004-11-11 Position On Off Connection Pin 1 – Pin 2 Pin 2 – Pin 3 Microsemi Integrated Products 11861 Western Avenue, Garden Grove, CA. 92841, 714-898-8121, Fax: 714-893-2570 Page 4 LX2203 EVALUATION BOARD USER GUIDE BOARD LAYOUT AND HOOK UP Figure 2 – LX2203 Evaluation Board Layout Figure 3 – LX2203 Evaluation Board Hookup Copyright © 2004 Rev. 1.0, 2004-11-11 Microsemi Integrated Products 11861 Western Avenue, Garden Grove, CA. 92841, 714-898-8121, Fax: 714-893-2570 Page 5 LX2203 EVALUATION BOARD USER GUIDE LX2203 EVALUATION BOARD BILL OF MATERIALS MISCELLANEOUS COMPONENTS Line Item 1 2 3 4 5 6 Part Description Microsemi Li-Ion Battery Charger IC LED SMT Green Test Point – W Loop Header .100 Straight Terminal Block 2pin 7mm spacing PCB SGE3525 X1 Manufacturer & Part # MICROSEMI MICROSEMI KEYSTONE L2203CLD UPBLED470-B 5007 OST OST/2/7.0 Case MLD Reference Designators U3 STAT GND, GND3, VIN+ P1 P3 Qty 1 1 3 1 1 1 CAPACITORS Line Item 1 2 Part Description Capacitor 10µF, X5R, 16V, 20% Capacitor 0.1µF, X7R, 10%, 50V Part Description TAIYO YUDEN PANASONIC EMK325BJ106MN ECJ2YB1H104K Case Reference Designators Qty 1210 0805 C1, C2 C3 2 1 Case Reference Designators Qty 0805 0805 0805 0805 R1 R2 R3 R4 1 1 1 1 RESISTORS Line Item 1 2 3 4 Part Description Resistor, 470, 1/8W, 5% Resistor, 100K, 1/8W, 5% Resistor, 150K, 1/8W, 5% Resistor, 90.9K, 1/8W, 5% Copyright © 2004 Rev. 1.0, 2004-11-11 Part Description ROHM ROHM ROHM ROHM MCR10EZHJ471 MCR10EZHJ104 MCR10EZHJ154 Microsemi Integrated Products 11861 Western Avenue, Garden Grove, CA. 92841, 714-898-8121, Fax: 714-893-2570 Page 6