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Texas Instruments bq24010/2, Руководство пользователя

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Texas Instruments bq24010/2 Скачать руководство пользователя страница 6

Contents

vi

Содержание bq24010/2

Страница 1: ... January 2003 PMP Portable Power User s Guide SLUU125A ...

Страница 2: ...nt that any license either express or implied is granted under any TI patent right copyright mask work right or other TI intellectual property right relating to any combination machine or process in which TI products or services are used Information published by TI regarding third party products or services does not constitute a license from TI to use such products or services or a warranty or end...

Страница 3: ... handling or use of the goods Please be aware that the products received may not be regulatory compliant or agency certified FCC UL CE etc Due to the open construction of the product it is the user s responsibility to take any and all appropriate precautions with regard to electrostatic discharge EXCEPT TO THE EXTENT OF THE INDEMNITY SET FORTH ABOVE NEITHER PARTY SHALL BE LIABLE TO THE OTHER FOR A...

Страница 4: ... If there is uncertainty as to the load specification please contact a TI field representative During normal operation some circuit components may have case temperatures greater than 60 C The EVM is designed to operate properly with certain components above 60 C as long as the input and output ranges are maintained These components include but are not limited to linear regulators switching transis...

Страница 5: ... Equipment Setup 2 4 2 2 3 Procedure 2 4 3 Schematic Physical Layouts and Bill of Materials 3 1 3 1 Schematic 3 2 3 2 Physical Layouts 3 3 3 2 1 Board Layout 3 3 3 3 Bill of Materials 3 5 3 4 Reference 3 5 Figures 2 1 Load Test Board 2 4 3 1 EVM Schematic Diagram 3 2 3 2 Assembly View 3 3 3 3 Top Layer 3 4 3 4 Bottom Layer 3 4 Tables 1 1 Performance Specification Summary 1 2 3 1 Bill of Materials ...

Страница 6: ...Contents vi ...

Страница 7: ...applications using the bq24010 2 product family A complete designed and tested charger is presented The charger is designed to deliver up to 1 0 A of continuous charge current but is programmed for 0 7 A for single cell Li Ion or Li Pol applications using a dc power supply Topic Page 1 1 Background 1 2 1 2 Performance Specification Summary 1 2 Chapter 1 bqTINY is a trademark of Texas Instruments ...

Страница 8: ... offer a multitude of additional features These include temperature sensing input for detecting hot or cold battery packs power good PG output indicating the presence of the ac adapter a TTL level charge enable input CE to disable or enable the charge process and a TTL level timer and termination enable TTE input to disable or enable the fast charge timer and charge termination 1 2 Performance Spe...

Страница 9: ... 5 VDC 1 A power source to provide input power and a single cell Li Ion or Li Pol battery pack The test set up connections and jumper setting selections are configured for a stand alone evaluation but can be changed to interface with external hardware such as a microcontroller Topic Page 2 1 I O and Jumper Connecations 2 2 2 2 Test Procedure 2 2 Chapter 2 ...

Страница 10: ...n on the IC is not exceeded P MAX 1 5 watts 1 Turn on the power supply which was preset to 5 0 VDC and 1 A for the current limit setting 2 The bq24010 2 enters preconditioning mode if the battery is below the V LOWV threshold In this mode the bq24010 2 precharges the battery with a low current typically IO CHG 10 0 7A 10 70 mA until the battery voltage reaches the V LOWV threshold or until the pre...

Страница 11: ...e applicable These signals if applicable are available at the connectors for external control Note Because of the battery detection circuit it is not possible to switch in static load resistors to jump between regulation and constant current modes An alternate procedure described below uses a dynamic load to replace the battery circuit That procedure allows testing of each mode This is an alternat...

Страница 12: ...rough SW4 in the closed position 2 Connect a voltage meter to the BAT BAT output to monitor the output voltage Range is 0 to 5 V 3 Set the lab supply for 5 1 V 0 1VDC 1 0 0 1 A current limit and then turn off supply Connect the source supply to a current meter and to J1 noting polarity You may use an internal source current meter if it has 5 or better accuracy 4 Install shunt jumpers on the LED pi...

Страница 13: ... ms div 1 V div that output BAT charges and discharges are between the maximum limits of 3 V and 4 35 V with a period between 600 ms and 850 ms 11 Verify that the LEDs flash between RED D1 and GREEN D2 mostly on green 12 Open switch SW4 and verify that D1 and D2 are off and D3 is on 13 Verify with a scope on BAT a square wave between the maximum limits of 1 3 and 4 35 VDC and a frequency between 3...

Страница 14: ...al Layouts and Bill of Materials This chapter contains the schematic diagram the board layouts and assembly drawings and the bill of materials required for the EVM Topic Page 3 1 Schematic 3 2 3 2 Physical Layouts 3 3 3 3 Bill of Materials 3 5 3 4 Reference 3 5 Chapter 3 ...

Страница 15: ...BAT VCC 2 9 TS STAT1 3 8 PG STAT2 4 7 ISET VSS 5 6 D3 Green 11 R3 1 MΩ 2 R6 1 MΩ C1 1 µF 10 V TP1 TP2 R4 1 13 kΩ C2 1 µF 10 V 1 4 3 2 1 BAT BAT TS CE BAT 2 J2 J3 1 2 3 4 STAT1 STAT2 DC PG 1 2 3 J6 LED EXT PG JUMPER LED EXT STAT2 JUMPER LED EXT STAT1 JUMPER Not installed 1 bq24012 EVM IC TS pin becomes CE R6 becomes 10 kΩ and R3 is removed 2 1 2 3 J5 1 2 3 J4 ...

Страница 16: ...chematic Physical Layouts and Bill of Materials 3 2 Physical Layouts 3 2 1 Board Layout Figure 3 2 shows the assembly view of the EVM Figure 3 3 shows the top layer Figure 3 4 shows the bottom layer Figure 3 2 Assembly View ...

Страница 17: ...Physical Layouts 3 4 Figure 3 3 Top Layer Figure 3 4 Bottom Layer ...

Страница 18: ...6 pin strip 0 100 3 Sullins PTC36SAAN 9 3 3 R1 R2 R5 Resistor chip 1 5 kΩ 1 16 W 1 603 Std Std 10 2 0 R3 R6 Resistor chip 1 MΩ 1 16 W 1 602 Std Std 11 0 1 R6 Resistor chip 10 kΩ 1 16 W 1 603 Std Std 12 1 1 R4 Resistor chip 1 3 kΩ 1 16 W 1 603 Std Std 13 1 0 U1 IC single Li Ion Li Poly charge manager MLP10 TI bq24010DRC 14 0 1 U1 IC single Li Ion Li Poly charge manager MLP10 TI bq24012DRC 15 3 3 Sh...

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