參數(shù)資料
型號(hào)： BQ24630RGET
廠(chǎng)商： TEXAS INSTRUMENTS INC
元件分類(lèi)： 穩(wěn)壓器
英文描述： SWITCHED CAPACITOR CONVERTER, PQCC24
封裝： 4 X 4 MM, GREEN, PLASTIC, VQFN-24
文件頁(yè)數(shù)： 11/33頁(yè)
文件大?。?/td> 1893K
代理商： BQ24630RGET
CHARGESUSPENDED
TEMPERATURERANGE TO
INITIATECHARGE
TEMPERATURERANGE
DURING A CHARGECYCLE
VHTF
GND
VTCO
GND
VREF
CHARGESUSPENDED
VLTF
CHARGEatI
/8
CHARGE
CHARGEat I
/8
CHARGE
VWARM
CHARGEat I
/8
CHARGE
CHARGEat I
/8
CHARGE
VCOOL
CHARGEat I
CHARGE
CHARGEat I
CHARGE
VCOOL
VWARM
VLTF_HYS
VCOOL_HYS
VWARM_HYS
www.ti.com
SLUS894 – JANUARY 2010
TEMPERATURE QUALIFICATION
The controller continuously monitors battery temperature by measuring the voltage between the TS pin and
GND. A negative temperature coefficient thermistor (NTC) and an external voltage divider typically develop this
voltage. The controller compares this voltage against its internal thresholds to determine if charging is allowed.
To initiate a charge cycle, the battery temperature must be within the V(LTF) to V(HTF) thresholds. If battery
temperature is outside of this range, the controller suspends charge and the safety timer and waits until the
battery temperature is within the V(LTF) to V(HTF) range. During the charge cycle the battery temperature must
be within the V(LTF) to V(TCO) thresholds. If battery temperature is outside of this range, the controller suspends
charge and safety timer and waits until the battery temperature is within the V(LTF) to V(HTF) range. If the
battery temperature is between the V(LTF) and the V(COOL) thresholds or between the V(HTF) and V(WARM)
thresholds, charge is automatically reduced to ICHARGE/8. To avoid early termination during COOL/WARM
condition, set ITERM ≤ ICHARGE/10. The controller suspends charge by turning off the PWM charge FETs. Figure 18
and Figure 19 summarizes the operation.
Figure 18. TS, Thermistor Sense Thresholds
Copyright 2010, Texas Instruments Incorporated
19
Product Folder Link(s): bq24630
相關(guān)PDF資料
PDF描述
BQ25070DQCR 1 A BATTERY CHARGE CONTROLLER, PDSO10
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BQ3285ESSN 1 TIMER(S), REAL TIME CLOCK, PDSO24
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
BQ24630RGET 制造商:Texas Instruments 功能描述:BATTERY CHARGER IC
BQ24640EVM 功能描述:電源管理IC開(kāi)發(fā)工具 Eval Mod for BQ24640 RoHS:否 制造商:Maxim Integrated 產(chǎn)品:Evaluation Kits 類(lèi)型:Battery Management 工具用于評(píng)估:MAX17710GB 輸入電壓: 輸出電壓:1.8 V
BQ24640RVAR 功能描述:電池管理 Hi Eff Synch Sw-Mode Batt Charge Cntrlr RoHS:否 制造商:Texas Instruments 電池類(lèi)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
BQ24640RVAT 功能描述:電池管理 Hi Eff Synch Sw-Mode Batt Charge Cntrlr RoHS:否 制造商:Texas Instruments 電池類(lèi)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
BQ24650EVM-639 功能描述:電源管理IC開(kāi)發(fā)工具 BQ24650 Eval Mod RoHS:否 制造商:Maxim Integrated 產(chǎn)品:Evaluation Kits 類(lèi)型:Battery Management 工具用于評(píng)估:MAX17710GB 輸入電壓: 輸出電壓:1.8 V
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