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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） |
| 文件頁數(shù)： | 4/9頁 |
| 文件大?。?/td> | 57K |
| 代理商： | SI9731 |
Si9731
Vishay Siliconix
www.vishay.com
4
Document Number: 71321
S-02258
—
Rev. A, 28-Sep-00
4.1 V_TAP
TRICKLE_V
BAT
CHARGERPOWER_ON = (XCHARGERPOWER_ON)
CHARGERPRESENT = (XCHARGERPRESENT)
16
15
14
13
1
2
3
4
12
11
10
9
5
6
7
8
CHARGERPRESENTIN
V
BAT+
CHARGERPOWER_ONIN
GND
(N/C)
V
CHARGER
ON/OFF
(N/C)
TRICKLECHARGEEN
CVMODE
MAINCHARGEEN
V
REF
TSSOP-16
Top View
Si9731DQ
Ordering Information
Part Number
Temperature Range
Package
Si9731DQ
–
40 to 85 C
Tape and Reel
Eval Kit
Temperature Range
Board Type
Si9731DB
–
40 to 85 C
Surface Mount
Pin Number
Name
Function
1
CHARGERPRESENTIN
Logic input for CHARGERPRESENT output
2
CHARGERPOWER_ONIN
Logic input for CHARGERPOWER_ON output
3
V
CHARGER
ON/OFF
External charger
4
Master shutdown pin. Taking ON/OFF low shuts down the charger and quiescent current drops to under 1 A
5
TRICKLECHARGEEN
Taking this pin high disables trickle (slow) charging
6
CVMODE
A logic high enables the error amplifier to linearly drive the gate of MOSFET Q1 when MAINCHARGEREN is
high.
An external PWM signal at MAINCHARGEREN pin controls the ON/OFF duty cycle of the Fast Charge
MOSFET, Q1.
Do not connect external circuitry to this pin. Circuitry internal to the IC is connected to this pin.
7
MAINCHARGEEN
8, 10
N/C
9
V
REF
GND
Internal 1.30-V precision bandgap reference voltage. Do not apply loads to this pin.
11
Low impedance system ground
12
4.1 V_TAP
Connect this pin to V
BAT+
for 4.1-V charge termination in constant voltage mode
Resistor connected between this pin and V
BAT
to limit the trickle charge current.
Charger output connected to battery
’
s positive terminal
13
TRICKLE_V
BAT
V
BAT+
CHARGERPOWER_ON
14
15
Open drain logic output
16
CHARGERPRESENT
Open drain logic output
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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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