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參數(shù)資料
| 型號： | TPS65010RGZ |
| 廠商： | Texas Instruments, Inc. |
| 英文描述： | POWER AND BATTERY MANAGEMENT IC FOR Li-ION POWERED SYSTEMS |
| 中文描述： | 電源和電池管理集成電路鋰離子供電系統(tǒng) |
| 文件頁數(shù)： | 19/50頁 |
| 文件大?。?/td> | 1006K |
| 代理商： | TPS65010RGZ |
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www.ti.com
DETAILED DESCRIPTION
BATTERY CHARGER
The TPS65010 supports a precision Li-Ion or Li-Polymer charging system suitable for single-cells with either
coke or graphite anodes. Charging the battery is possible even without the application processor being powered
up. The TPS65010 starts charging when an input voltage on either ac or USB input is present, which is greater
than the charger UVLO threshold. See Figure 27 for a typical charge profile.
Charge Voltage
Charge Current
Current Regulation
Phase
Voltage Regulation and Charge
Termination Phase
Regulation Voltage
Regulation Current
Minimum Charge
Voltage
Preconditioning
and Taper Detect
Pre-
Conditioning
Phase
t
(PRECHG)
t
(TAPER)
t
(CHG)
Autonomous Power Source Selection
Temperature Qualification
TPS65010
SLVS149A–JUNE 2003–REVISED JANUARY 2004
Figure 27. Typical Charging Profile
Per default the TPS65010 attempts to charge from the ac input. If ac input is not present, the USB is selected. If
both inputs are available, the ac input has priority. The charge current is initially limited to 100 mA when charging
from the USB input. This can be increased to 500 mA via the serial interface. The charger can be completely
disabled via the interface, and it is also possible just to disable charging from the USB port. The start of the
charging process from the USB port is delayed in order to allow the application processor time to disable USB
charging, for instance if a USB OTG port is recognized. The recommended input voltage for charging from the ac
input is 4.5 V < VAC < 5.5 V. However, the TPS65010 is capable of withstanding (but not charging from) up to 20
V. Charging is disabled if VAC is greater than typically 6.6 V.
The TPS65010 continuously monitors battery temperature by measuring the voltage between the TS and AGND
pins. An internal current source provides the bias for most common 10K negative-temperature coefficient
thermistors (NTC) (see Figure 28). The IC compares the voltage on the TS pin against the internal V
(LTF)
and
V
(HTF)
thresholds to determine if charging is allowed. Once a temperature outside the V
(LTF)
and V
(HTF)
thresholds
is detected the IC immediately suspends the charge. The IC suspends charge by turning off the power FET and
holding the timer value (i.e., timers are
not
reset). Charge is resumed when the temperature returns to the
normal range.
The allowed temperature range for 103AT type thermistor is 0
°
C to 45
°
C. However the user may modify these
thresholds by adding two external resistors. See Figure 29.
19
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| TPS65010RGZR | 功能描述:電池管理 Multi-Channel 1-cell Li-Ion RoHS:否 制造商:Texas Instruments 電池類型:Li-Ion 輸出電壓:5 V 輸出電流:4.5 A 工作電源電壓:3.9 V to 17 V 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 封裝 / 箱體:VQFN-24 封裝:Reel |
| TPS65010RGZRG4 | 功能描述:電池管理 Multi-Channel 1-cell Li-Ion RoHS:否 制造商:Texas Instruments 電池類型:Li-Ion 輸出電壓:5 V 輸出電流:4.5 A 工作電源電壓:3.9 V to 17 V 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 封裝 / 箱體:VQFN-24 封裝:Reel |
| TPS65010RGZT | 功能描述:電池管理 Multi-Channel 1-cell Li-Ion RoHS:否 制造商:Texas Instruments 電池類型:Li-Ion 輸出電壓:5 V 輸出電流:4.5 A 工作電源電壓:3.9 V to 17 V 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 封裝 / 箱體:VQFN-24 封裝:Reel |
| TPS65010RGZTG4 | 功能描述:電池管理 Multi-Channel 1-cell Li-Ion RoHS:否 制造商:Texas Instruments 電池類型:Li-Ion 輸出電壓:5 V 輸出電流:4.5 A 工作電源電壓:3.9 V to 17 V 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 封裝 / 箱體:VQFN-24 封裝:Reel |
| TPS65011EVM-049 | 功能描述:電源管理IC開發(fā)工具 TPS65011-049 Eval Mod RoHS:否 制造商:Maxim Integrated 產(chǎn)品:Evaluation Kits 類型:Battery Management 工具用于評估:MAX17710GB 輸入電壓: 輸出電壓:1.8 V |
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