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參數(shù)資料
| 型號(hào)： | Si9731 |
| 廠商： | Vishay Intertechnology,Inc. |
| 英文描述： | μP Controlled Battery Charger For 1-Cell Li-ion or 1-Cell to 3-Cell NiCd/NiMH Batteries(用于1節(jié)鋰電池或1-3節(jié)鎳氫/鎳鎘電池的μP控制的電池充電器) |
| 中文描述： | 微處理器控制的電池充電器1節(jié)鋰離子電池或1節(jié)至3節(jié)鎳鎘/鎳氫電池（用于1節(jié)鋰電池或1-3節(jié)鎳氫/鎳鎘電池的微處理器控制的電池充電器） |
| 文件頁(yè)數(shù)： | 5/9頁(yè) |
| 文件大?。?/td> | 57K |
| 代理商： | SI9731 |
Si9731
Vishay Siliconix
Document Number: 71321
S-02258
—
Rev. A, 28-Sep-00
www.vishay.com
5
V
CHARGER
TRICKLE
CHARGEEN
CVMODE
MAIN
CHARGEEN
ON/OFF
Q1
b
Q2
Mode
Not Present
X
X
X
X
OFF
OFF
Not Charging
Not Present
OK to Charge
a
X
X
X
X
OFF
OFF
Not Charging
Over Voltage
V
CHARGER
12.8 V
X
X
X
X
OFF
OFF
Not Charging
X
X
X
LOW
OFF
OFF
Not Charging (Shutdown)
LOW
LOW
LOW
HIGH
OFF
ON
Trickle Charge
HIGH
LOW
LOW
HIGH
OFF
OFF
Not Charging
(Current pulse off during Constant
Current Charge)
LOW
LOW
HIGH
HIGH
ON
OFF
Constant Current Charge
(current pulse on)
Present
OK to Charge
a
HIGH
LOW
HIGH
HIGH
ON
OFF
LOW
HIGH
LOW
HIGH
OFF
OFF
Not Charging
(Current pulse off during Constant
Current Charge with output limited
to 4.1 V/4.2 V or end of charge in
Li-Ion charging)
Constant Current Charge
(Output Limited to 4.1 V/4.2 V or
Constant Voltage Charge)
HIGH
HIGH
LOW
HIGH
OFF
OFF
LOW
HIGH
HIGH
HIGH
ON
OFF
HIGH
HIGH
HIGH
HIGH
ON
OFF
Notes
a.
“
OK to Charge
”
is a flag signal that is enabled by satisfying all the following conditions:
1. Battery voltage is below 5 V
2. Charger voltage is greater than 3 V but below 12.8 V
3. If MAINCHARGEEN = Logic Low, V
CHARGER
> V
BAT
+ 40 mV,
If MAINCHARGEEN = Logic High, V
CHARGER
> V
BAT
–
40 mV
4. ON/OFF pin is at logic high.
b.
Q1 drive is determined by the error amplifier during constant voltage mode.
Q1 drive is a combination of Q1 drive (digital) and the output of the error amplifier using the analog adder. The combinations are:
Q1 Drive (Digital)
Output of Error Amplifier
Q1 Drive
LOW
LOW
LOW (fully off)
LOW
Intermediate
Intermediate (linear mode)
HIGH
LOW
HIGH (fully on)
HIGH
HIGH
Should Never Happen
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| SI9731_09 | 制造商:VISHAY 制造商全稱:Vishay Siliconix 功能描述:uP Controlled Battery Charger for 1-Cell Li-ion or 1-Cell to 3-Cell NiCd/NiMH Batteries |
| SI9731DB | 功能描述:電池管理 SI9731 Demo Board 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 |
| SI9731DQ | 制造商:VISHAY 制造商全稱:Vishay Siliconix 功能描述:uP Controlled Battery Charger for 1-Cell Li-ion or 1-Cell to 3-Cell NiCd/NiMH Batteries |
| SI9731DQ-T1 | 功能描述:電池管理 Battery Charger 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 |
| SI9731DQ-T1-E3 | 功能描述:電池管理 Micro Controlled Battery Charger 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 |
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