Related Manuals for Texas Instruments bq24010/2
Summary of Contents for Texas Instruments bq24010/2
- Page 1 (bqTINY ) 1 A Single Chip Li Ion and Li Pol Charge Management IC With Integrated PowerFET and Current Sense Evaluation Module User’s Guide January 2003 PMP Portable Power SLUU125A...
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Page 2: Important Notice
Texas Instruments Incorporated and its subsidiaries (TI) reserve the right to make corrections, modifications, enhancements, improvements, and other changes to its products and services at any time and to discontinue any product or service without notice. Customers should obtain the latest relevant information before placing orders and should verify that such information is current and complete. -
Page 3: Evm Important Notice
EVM IMPORTANT NOTICE Texas Instruments (TI) provides the enclosed product(s) under the following conditions: This evaluation kit being sold by TI is intended for use for ENGINEERING DEVELOPMENT OR EVALUATION PURPOSES ONLY and is not considered by TI to be fit for commercial use. As such, the goods being provided may not be complete in terms of required design-, marketing-, and/or manufacturing-related protective considerations, including product safety measures typically found in the end product incorporating the goods. - Page 4 EVM schematic located in the EVM User’s Guide. When placing measurement probes near these devices during operation, please be aware that these devices may be very warm to the touch. Copyright 2003, Texas Instruments Incorporated Mailing Address: Texas Instruments Post Office Box 655303...
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Page 5: Table Of Contents
Introduction ..............Background . - Page 6 Contents...
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Page 7: Introduction
This user’s guide describes the bq24010/2 (bqTINY ) evaluation module. The EVM provides a convenient method for evaluating the performance of a charge-management solution for portable 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... -
Page 8: Background
Background 1.1 Background The bqTINY series are highly integrated Li-Ion and Li-Pol linear charge management devices targeted at space limited portable applications. In a small package, the bqTINY series offer integrated PowerFET and current sensor, reverse blocking diode, high accuracy current and voltage regulation, charge status, and charge termination. -
Page 9: Test Summary
This chapter shows the test setups used and the tests performed in evaluating the EVM. Setup The bq24010/2 EVM board requires a 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. -
Page 10: I/O And Jumper Connections
P 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 (LOWV) with a low current (typically I voltage reaches the V expires. - Page 11 In place of a battery, a source meter that can sink current can easily be adjusted to test each mode. Another way to briefly see each mode on a scope is to connect a 1-mF capacitor and a 10-k resistor on the output in place of a battery to observe the power-up and cycling between voltage regulation and fast charge via the refresh threshold.
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Page 12: Equipment
2) Two Fluke 75, equivalent or better 3) Oscilloscope – TDS220 or better 4) Load test board (See Figure 2–1.) Figure 2–1. Load Test Board Power Supply 5.1 V 0.1 V Volts bq24010/2 EVM Current Limit 0.1 A BAT+ BAT+ – DC– BAT–... - Page 13 4) Verify that output voltage BAT+ settles between 3.2 V and 3.95 V. 5) Verify that the input current is between 0.69 A and 0.75 A. 6) Open switch SW3. 7) Verify that the input current is between 100 mA and 150 mA. 8) Verify the output voltage BAT+ is between 4.150 VDC and 4.250 VDC.
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Page 14: Schematic, Physical Layouts, And Bill Of Materials
Schematic, Physical Layouts, and This chapter contains the schematic diagram, the board layouts and assembly drawings, and the bill of materials required for the EVM. Topic Schematic ........... . Physical Layouts . - Page 15 DC– 1.5 k 1.5 k Green 0.47 F LED EXT LED EXT STAT1 JUMPER STAT2 JUMPER Not installed bq24012 EVM (IC)– TS pin becomes /CE. R6 becomes 10 k and R3 is removed bq24010 STAT1 STAT2 ISET 10 V 1.5 k Green 1.13 k LED EXT...
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Page 16: Physical Layouts
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 Schematic, Physical Layouts, and Bill of Materials Physical Layouts... - Page 17 Physical Layouts Figure 3–3. Top Layer Figure 3–4. Bottom Layer...
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Page 18: Bill Of Materials
— Shunt, 100-mil, black — PCB, bq24010/2, 1.6 in Notes: 1) These assemblies are ESD sensitive; ESD precautions must be observed. 2) These assemblies must be clean and free from flux and all contaminants. Use of no-clean flux is not acceptable.
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