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BQ24160 bảng dữ liệu(PDF) 29 Page - Texas Instruments |
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BQ24160 bảng dữ liệu(HTML) 29 Page - Texas Instruments |
29 / 53 page 29 bq24160, bq24160A, bq24161 bq24161B, bq24163, bq24168 www.ti.com SLUSAO0G – NOVEMBER 2011 – REVISED DECEMBER 2015 Product Folder Links: bq24160 bq24160A bq24161 bq24161B bq24163 bq24168 Submit Documentation Feedback Copyright © 2011–2015, Texas Instruments Incorporated 9.6 Register Maps 9.6.1 Status/Control Register (READ/WRITE) Memory location: 00, Reset state: 0xxx 0xxx BIT NAME Read/Write FUNCTION B7 (MSB) TMR_RST Read/Write Write: TMR_RST function, write “1” to reset the watchdog timer (auto clear) Read: Always 0 (bq24160/1/3 only) B6 STAT_2 Read only 000- No Valid Source Detected 001- IN Ready (shows preferred source when both connected) 010- USB Ready (shows preferred source when both connected) 011- Charging from IN 100- Charging from USB 101- Charge Done 110- NA 111- Fault B5 STAT_1 Read only B4 STAT_0 Read only B3 SUPPLY_SEL Read/Write 0-IN has precedence when both supplies are connected 1-USB has precedence when both supplies are connected (default 0) B2 FAULT_2 Read only 000-Normal 001- Thermal Shutdown 010- Battery Temperature Fault 011- Watchdog Timer Expired (bq24160/1/1B/3 only) 100- Safety Timer Expired (bq24160/1/1B/3 only) 101- IN Supply Fault 110- USB Supply Fault 111- Battery Fault B1 FAULT_1 Read only B0 (LSB) FAULT_0 Read only SUPPLY_SEL Bit (Supply Precedence Selector) The SUPPLY_SEL bit selects which supply has precedence when both supplies are present. In cases where both supplies are connected, they must remain isolated from each other which means only one is allowed to charge the battery. Write a “1” to SUPPLY_SEL to select the USB input to have precedence. Write a “0” to select the IN input.Note the following behavior when switching the SUPPLY_SEL bit with both supplies attached: • The bq2416xx returns to high impedance mode • The input supply is switched • The bq2416xx begins a full startup cycle starting with bad adapter detection then proceeding to soft-start Similarly, if charging from the non-preferred supply when the preferred supply is attached, the bq2416xx follows the same procedure. STAT_x and FAULT_x Bits The STAT_x show the current status of the device and are updated dynamically as the IC changes state. The FAULT_x bits show faults that have occurred and are only cleared by reading the bits, assuming the fault no longer exists. If multiple faults occur, the first one is the one that is shown. 9.6.2 Battery/ Supply Status Register (READ/WRITE) Memory location: 01, Reset state: xxxx 0xxx BIT NAME Read/Write FUNCTION B7 (MSB) INSTAT1 Read Only 00-Normal 01-Supply OVP 10-Weak Source Connected (No Charging) 11- VIN<VUVLO B6 INSTAT0 Read Only B5 USBSTAT1 Read Only 00-Normal 01-Supply OVP 01-Weak Source Connected (No Charging) 11- VUSB<VUVLO B4 USBSTAT0 Read Only |
Số phần tương tự - BQ24160_V01 |
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Mô tả tương tự - BQ24160_V01 |
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