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參數(shù)資料
| 型號(hào)： | SI9731DQ |
| 廠商： | Vishay Intertechnology,Inc. |
| 英文描述： | UP Controlled Battery Charger For 1-Cell Li-ion or 1-Cell to 3-Cell NiCd/NiMH Batteries |
| 中文描述： | 向上控制電池充電器1節(jié)鋰離子電池或1節(jié)至3節(jié)鎳鎘/鎳氫電池 |
| 文件頁數(shù)： | 1/9頁 |
| 文件大?。?/td> | 68K |
| 代理商： | SI9731DQ |
Si9731
Vishay Siliconix
Document Number: 71321
S-02258—Rev. A, 28-Sep-00
www.vishay.com
1
P Controlled Battery Charger
For 1-Cell Li-ion or 1-Cell to 3-Cell NiCd/NiMH Batteries
Pulse Charges 1-Cell Li-ion or 1-Cell to 3-Cell
NiCd/NiMH Batteries
Integrated MOSFETs With Bi-directional Reverse
Current Blocking in “OFF” Mode
PWM Controlled Fast Charging Mode
Low Current Trickle Charge Mode
Pin Selectable 4.1 V or 4.2 V Charge Termination for
Li-ion
Constant Voltage (CV) Termination For Li-ion
Input Over-Voltage Detector with Automatic Shutdown
External Shutdown
Under 1- A Reverse Battery Leakage Current In
Shutdown
Complete Isolation from Battery to External Power
Supply In Shutdown
Thermal Shutdown
Minimum Number 0f External Components
ESD Protection to 4 kV on Charger Input and Battery
Output
TSSOP-16 Package (1.2-mm maximum height)
Cellular Phone Battery Charger
Personal Digital Assistants
Si9731 is a chemistry independent battery charger designed
to pulse charge 1-cell to 3-cell NiCd/NiMH or 1-cell Li-ion
batteries. Battery charging is accomplished under direct
control from the system processor. An internal low r
DS(on)
MOSFET can be pulsed on and off at varying duty cycle by the
system processor to pulse charge the battery at high charge
current while minimizing heat dissipation. Provision is also
made to trickle charge a discharged battery until the battery is
charged to a high enough voltage to wake up the processor so
that the processor can take control of the charging process.
For charging Li-ion batteries, Si9731 includes a precision
voltage reference and an error amplifier for constant voltage
(CV) charge mode.
B
a
t
t
e
r
y
V
BAT
ON/OFF
V
CHARGER
TRICKLECHARGEENABLE
Trickle
Charge
Fast
Charge
4.1/4.2 V_TAP
FAST CHARGE
Charge Control
CV
MODE
GND
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| SI9731 | 渭P Controlled Li-ion Battery Charger Pulse Charges 1 to 3 Cells Integrated MOSFETs |
| Si9731 | 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) |
| Si9750 | In-Rush Current Limit MOSFET Driver(輸入電壓工作范圍2.9-13V，限流MOSFET驅(qū)動(dòng)器) |
| SI9803DY | P-Channel Reduced Qg Fast Switching MOSFET |
| SI9804DY | N-Channel Reduced Qg, Fast Switching MOSFET |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| 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 |
| SI9731SB | 功能描述:電池管理 SI9731 System 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 |
| SI9750 | 制造商:VISHAY 制造商全稱:Vishay Siliconix 功能描述:In-Rush Current Limit MOSFET Driver |
| SI9750_05 | 制造商:VISHAY 制造商全稱:Vishay Siliconix 功能描述:In-Rush Current Limit MOSFET Driver |
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