Related Manuals for Texas Instruments SLUU083A
Summary of Contents for Texas Instruments SLUU083A
- Page 1 Single and Two Cell Li Ion Charge Management IC With Integrated Power FET EVM User’s Guide July 2002 Advanced Analog Products SLUU083A...
- Page 2 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.
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Page 3: Read This First
Chapter 4—Bill of Materials Appendix A—Schematic Related Documentation From Texas Instruments bq24001, bq24002, bq24003 data sheet, literature number SLUS462A bq24004, bq24005, bq24006 data sheet, literature number SLUS476 Trademarks PowerPAD is a trademark of Texas Instruments. Trademarks Preface Read This First Read This First... -
Page 4: Table Of Contents
Introduction ..............Background . -
Page 5: Introduction
This user’s guide describes the bq2400x Evaluation Module (SLUP051). The EVM conveniently evaluates a linear Li-ion bq2400x charge-management solution for one- and two-cell battery-pack applications. This guide describes a complete designed-and-tested charger, which delivers up to 1.0 A of continu- ous-charge current for one- or two-cell applications. -
Page 6: Background
Background 1.1 Background The bq2400x series ICs are advanced Li-Ion linear charge management devices for highly integrated and space-limited applications. They combine high-accuracy current and voltage regulation; FET pass-transistor and reverse-blocking Schottky; battery conditioning, temperature, or input-power monitoring; charge termination; charge-status indication; and charge timer in a small, 20-lead TSSOP PowerPAD package. -
Page 7: Performance Specification Summary (Two Cell)
Table 1–2. Performance Specification Summary (Two Cell) Specification Input dc voltage, V Battery charge current I Battery charge current, I Battery voltage regulation, V Battery voltage regulation V High, T BATMAX Therm fault Therm fault Low, T BATMIN APG (user defined, see data sheet) Power dissipation, P †... -
Page 8: Test Summary
This chapter shows the test setups used, and the tests performed, in designing the bq2400xEVM. Topic Setup ............Test Procedures . -
Page 9: Setup
Setup 2.1 Setup The bq2400X EVM board requires a DC power source to provide input power and a single-cell lithium-ion or lithium-polymer battery to charge. Note: Other versions of the bq2400x IC can charge two-cell battery packs. The test setup connections and jumper setting selections are listed below. 2.1.1 I/O Connections Jack... -
Page 10: For Two-Cell Applications
Note: for a single cell should not exceed 5.3 VDC for the 1-A charge rate and 7.6 V for the .5-A charge rate. Adjust the input power supply for 5 V. The red LED should illuminate to indicate charging, unless there is a fault or the battery is fully charged. The bq2400x enters preconditioning mode if the battery is below the LowV threshold. - Page 11 Test Procedures The bq2400x enters preconditioning mode if the battery is below the LowV threshold. In this mode, the bq2400x trickle-charges with approximately 65 mA for approximately 23 minutes. If the battery does not reach the LowV threshold after this period, then the charge current is terminated and the bq2400x enters fault mode.
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Page 12: Physical Layouts
Chapter 3 Physical Layouts This chapter contains the board layout and assembly drawings for the SLUP051 EVM. Topic Page Board Layout ..........Physical Layouts... -
Page 13: Board Layout
Board Layout 3.1 Board Layout Figure 3-1 shows the top layer of the SLUP051. Figure 3-2 shows the bottom layer. Figure 3-3 shows the SLUP051 top assembly view. Figure 3–1. SLUP051 Board Layout Top Layer... -
Page 14: Slup051 Board Layout Bottom Layer
Board Layout Figure 3–2. SLUP051 Board Layout Bottom Layer Figure 3–3. SLUP051 Top Assembly View Physical Layouts... -
Page 15: Bill Of Materials
This chapter contains the bill of materials required for the SLUP051 EVM. It also specifies the charge status configurations for the bq2400x. Topic Bill of Materials ..........bq2400x Charge Status Configurations Chapter 4 Bill of Materials... -
Page 16: Bill Of Materials
Bill of Materials 4.1 Bill of Materials Table 4-1 lists materials required for the SLUP051 EVM. Table 4–1. SLUP051 Bill of Materials Reference Designator Part Number C1, C4 TAJC106M016R C0805X7R250-104KNE ECJ-2YB1E224K ECJ-2VCH100F LN1361C(UY)-(TR) LN1261CAL-(TR) J1, J10 AKZ500/2WP J2, J5-J7 2340-6111TG J3a/b, 2380-6221TG J4a/b,J8... -
Page 17: Bq2400X Charge Status Configurations
4.2 bq2400x Charge Status Configurations Table 4–2 lists the charge status configurations for the bq2400x. Table 4–2. Charge Status Configurations Part Number bq24001 bq24002 bq24003 bq24004 bq24005 bq24006 bq24007 bq24008 bq2400x Charge Status Configurations Number of Cells Charge Status Configuration Single cell Single LED Single cell... -
Page 18: Schematic
Appendix A Schematic This chapter contains the schematic diagram for the EVM. Topic Page Schematic ........... . Schematic... -
Page 19: Schematic
STAT 2 JUMPER AGND STAT2 STAT1 TMR_SEL 10PF (NO JUMPER) 3 Hr 6 Hr 4.5 Hr 0.22UF TMR JUMPER 18.7K 95.3K TEXAS INSTRUMENTS DRAWN DATE TITLE 05/23/2000 S. MCGEE SCHEMATIC ENGR BQ2400X EVM SIZE CODE DRAWING NO: BQ2400X RELEASE NEXT ASSY...
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