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BQ24155 Datasheet(PDF) 21 Page - Texas Instruments |
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BQ24155 Datasheet(HTML) 21 Page - Texas Instruments |
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21 / 30 page  bq24155 www.ti.com SLUS942 – FEBRUARY 2010 REGISTER DESCRIPTION Table 3. Status/Control Register (Read/Write) Memory Location: 00, Reset State: x1xx 0xxx BIT NAME READ/WRITE FUNCTION Write: TMR_RST function, write "1" to reset the safety timer (auto clear) B7 (MSB) TMR_RST/ISEL Read/Write Read: ISEL pin status, 0-ISEL pin at Low level, 1-ISEL pin at High level B6 EN_STAT Read/Write 0-Disable STAT pin function, 1-Enable STAT pin function (default 1) B5 STAT2 Read Only 00-Ready, 01-Charge in progress, 10-Charge done, 11-Fault B4 STAT1 Read Only B3 BOOST Read Only NA B2 FAULT_3 Read Only Charge mode: 000-Normal, 001-VBUS OVP, 010-Sleep mode, 011-Poor input B1 FAULT_2 Read Only source or VBUS < UVLO, 100-Output OVP, 101-Thermal shutdown, 110-Timer fault, 111-No battery B0 (LSB) FAULT_1 Read Only Table 4. Control Register (Read/Write) Memory Location: 01, Reset State: 0011 0000 (30H) BIT NAME READ/WRITE FUNCTION B7 (MSB) Iin_Limit_2 Read/Write 00-USB host with 100-mA current limit, 01-USB host with 500-mA current limit, 10-USB host/charger with 800-mA current limit, 11-No input current limit B6 Iin_Limit_1 Read/Write (default 00) B5 VLOWV_2(1) Read/Write 200-mV weak battery voltage threshold (default 1) B4 VLOWV_1(1) Read/Write 100-mV weak battery voltage threshold (default 1) 1-Enable charge current termination, 0-Disable charge current termination B3 TE Read/Write (default 0) B2 CE Read/Write 1-Charger is disabled, 0-Charger enabled (default 0) B1 HZ_MODE Read/Write 1-High impedance mode, 0-Not high impedance mode (default 0) B0 (LSB) OPA_MODE Read/Write 1-NA, 0-Charger mode (default 0) (1) The range of the weak battery voltage threshold (V(LOWV)) is 3.4 V to 3.7 V and step of 100 mV (default 3.7 V). Table 5. Control/Battery Voltage Register (Read/Write) Memory Location: 02, Reset State: 0000 1010 (0AH) BIT NAME READ/WRITE FUNCTION B7 (MSB) VO(REG5) Read/Write Battery regulation voltage: 640mV (default 0) B6 VO(REG4) Read/Write Battery regulation voltage: 320mV (default 0) B5 VO(REG3) Read/Write Battery regulation voltage: 160mV (default 0) B4 VO(REG2) Read/Write Battery regulation voltage: 80mV (default 0) B3 VO(REG1) Read/Write Battery regulation voltage: 40mV (default 1) B2 VO(REG0) Read/Write Battery regulation voltage: 20mV (default 0) B1 NA Read/Write NA B0 (LSB) NA Read/Write NA Charge voltage range is 3.5 V to 4.44 V with the offset of 3.5 V and step of 20 mV (default is 3.54 V). Table 6. Vender/Part/Revision Register (Read only) Memory Location: 03, Reset State: 0100 x001 BIT NAME READ/WRITE FUNCTION B7 (MSB) Vender2 Read Only Vender Code: bit 2 (default 0) B6 Vender1 Read Only Vender Code: bit 1 (default 1) B5 Vender0 Read Only Vender Code: bit 0 (default 0) B4 PN1 Read Only Part Number Code: bit 1 (default 0) B3 PN0 Read Only Part Number Code: bit 0 (default 0 for bq24151, default 1 for bq24155) Copyright © 2010, Texas Instruments Incorporated Submit Documentation Feedback 21 Product Folder Link(s): bq24155 |
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