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參數資料
| 型號： | TWL2214CAGQER |
| 廠商： | TEXAS INSTRUMENTS INC |
| 元件分類： | 電源管理 |
| 英文描述： | 1-CHANNEL POWER SUPPLY SUPPORT CKT, PBGA48 |
| 封裝： | MICRO, BGA-48 |
| 文件頁數： | 20/36頁 |
| 文件大小： | 511K |
| 代理商： | TWL2214CAGQER |
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TWL2214CA
POWER SUPPLY MANAGEMENT IC AND
LiIon BATTERY CHARGE CONTROL
SLVS321A – OCTOBER 2001 – REVISED JANUARY 2002
27
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
APPLICATION INFORMATION
control register—FCR1 (1BH)
BIT
NAME
DESCRIPTION
7
CHGSTR
Set this bit to 1 to start the charger operation. This bit is cleared if the charger is terminated. (Refer to
status register table below for terminated conditions)
6
ADC ENABLE
Set this bit to 1 to enable ADC operation, 0 to stop.
5
ADC FUNCTION
Set this bit to 1 to have ADC operate continuously. Set to 0 to have ADC to operate one cycle only.
4
ADBV
Set this bit to 1 to enable the VBAT input channel to ADC. Clear this bit to 0 to disable the input channel.
3
VTS
Set this bit to 1 to enable the VTS input channel to ADC. Clear this bit to 0 to disable the input channel.
2
ADCIN1
Set this bit to 1 to enable the ADCIN1 input channel.
1
ADCIN2
Set this bit to 1 to enable the ADCIN2 input channel.
0
IRQ
Status of IRQ terminal (refer to IRQ operation section).
ADC has four input channels (ADBV, VTS, ADCIN1, and ADCIN2). Each channel can be enabled or disabled
individually. The selected channel must be enabled before ADC FUNCTION and ADC ENABLE bits are
enabled, the channel is included in the ADC operation.
IRQ control/status
The TWL2214CA device uses IRQ signal to inform the external controller about the exception condition of the
VCHG input and the charger status. Bit 0 reflects the state of the IRQ signal. IRQ occurs in the following five
conditions:
1.
VCHG returns to operating range from nonoperating range.
2.
VCHG goes out of range from operating range.
3.
Battery error—occurs only during the charging cycle.
4.
Battery temperature out of range—occurs only during the charging cycle. The charger is suspended
temporarily. IRQ is cleared when the temperature returns to normal and the charger resumes automatically.
5.
Charge complete.
The controller must clear the IRQ signal by writing 0 to bit 0 in the interrupt service routine, except in the VBOT
condition. The controller may miss the next interrupt if it fails to write the 0. In the VBOT condition, the
TWL2214CA device clears the IRQ when the condition goes away.
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相關代理商/技術參數 |
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| TWL2214CAPFB | 制造商:Rochester Electronics LLC 功能描述:POWER SUPPLY MANAGEMENT IC:LION - Bulk 制造商:Texas Instruments 功能描述:CHGR LI-ION/LI-POL 150MA 2.8V 48TQFP - Tape and Reel |
| TWL2214CAPFBR | 制造商:Rochester Electronics LLC 功能描述:POWER SUPPLY MANAGEMENT IC:LION - Bulk 制造商:Texas Instruments 功能描述:CHGR LI-ION/LI-POL 150MA 2.8V 48TQFP - Tape and Reel |
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