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Evaluation Kit Description

Rev. 1.00 / February 2013

ZSPM4521

High-Efficiency Photovoltaic Charger for Li-Ion Batteries

Power and Precision

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Summary of Contents for ZSPM4521

Page 1: ...Evaluation Kit Description Rev 1 00 February 2013 ZSPM4521 High Efficiency Photovoltaic Charger for Li Ion Batteries Power and Precision...

Page 2: ...ssly disclaims and User expressly waives any and all warranties whether express implied or statutory including without limitation implied warranties of merchantability and of fitness for a particular...

Page 3: ...ation Board 4 Figure 3 1 Charging State Diagram 6 Figure 8 1 Connecting the FTDI USB I 2 C Cable to J6 9 Figure 9 1 The ZSPM4521 Graphic User Interface GUI 10 Figure 9 2 Reading Status Registers 11 Fi...

Page 4: ...he ZSPM4521 enables a complete battery charging system using a photovoltaic cell Key parameters of the battery charger are Battery lithium ion or lithium polymer 3 7V rated cell Photovoltaic voltage i...

Page 5: ...PROM memory through the I 2 C interface With the default settings the charging current and termination voltage are independent of battery temperature However these parameters can be set via EEPROM set...

Page 6: ...without notice 6 of 18 Figure 3 1 Charging State Diagram CONSTANT VOLTAGE MODE FULL CHARGE CONSTANT CURRENT CC MODE PRE CHARGE STATE INITIALIZE STATE INITIALIZE Waiting for Valid Charging Conditions N...

Page 7: ...pin see ZSPM4521 data sheet for details J5 Battery temperature sensor thermistor input optional J6 I 2 C connector Pin 4 is next to J6 I2C on ZSPM4521 Evaluation Board Figure 2 1 VDD pin 1 Note this...

Page 8: ...o the board s VTHERM LO connector on J5 which is also the common ground on the board Important Be sure to apply power to the ZSPM4521 EVB and set the EVB power switch to the ON position prior to using...

Page 9: ...able to ZSPM4521 Eval Board Connect the female connector of the FTDI USB I 2 C cable to J6 of ZSPM4521 Evaluation Board being careful to use the orientation shown in Figure 8 1 The order of the leads...

Page 10: ...ters for monitoring the ZSPM4521 The Configuration and CONFIGx sections allow programming different parameters in the ZSPM4521 The Reference section provides information from the datasheet showing def...

Page 11: ...to read the current values of monitor registers of the ZSPM4521 on the EVB Enabling the Auto Poll feature will automatically read the status bits at the time interval specified in the adjacent field F...

Page 12: ...igurable registers of the ZSPM4521 except STATUS which is read only To change the registers click on the Enable Configuration Registers button as shown in Figure 9 4 To prevent further changes to the...

Page 13: ...to load the file in the future using the Load From File button Figure 9 5 Buttons for Saving Current Configuration Settings or Loading Previously Saved Configurations 9 3 Reference Section The right...

Page 14: ...section 11 2 for recommended values and sources for the following optional com ponents 10 1 Schottky Diode While D1 is not required it can be populated to increase efficiency and provide a better loa...

Page 15: ...reserved The material contained herein may not be reproduced adapted merged translated stored or used without the prior written consent of the copyright owner The information furnished in this publica...

Page 16: ...F 25V 603 C5 0 1 F 25V 603 C6 0 1 F 25V 603 C7 0 1 F 25V 603 C3 4 7 F 25V 1210 TDK C3225X7R1E475K D1 DIODE SCHOTTKY smc_smb NL D2 DIODE ZENER do201ad NL D3 DIODE ZENER smc_smb NL J1 VIN OSTVQ021150 On...

Page 17: ...ystone 5001K ND TP9 VTHERMHI TP Keystone 5001K ND TP10 VTHERMLO TP Keystone 5001K ND U1 ZSPM4521 pqfn 16 ZMDI ZSPM4521 12 Ordering Information Product Sales Code Description ZSPM4521KIT ZSPM4521 Evalu...

Page 18: ...49 351 8822 8 7776 Phone 855 275 9634 USA Phone 408 883 6310 Fax 408 883 6358 Phone 81 3 6895 7410 Fax 81 3 6895 7301 Phone 886 2 2377 8189 Fax 886 2 2377 8199 Phone 82 31 950 7679 Fax 82 504 841 3026...

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