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參數(shù)資料
| 型號： | S-8204AAB-TCT1G |
| 元件分類： | 電源管理 |
| 英文描述： | 4-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO16 |
| 封裝： | LEAD FREE, TSSOP-16 |
| 文件頁數(shù)： | 6/32頁 |
| 文件大小： | 982K |
| 代理商： | S-8204AAB-TCT1G |
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BATTERY PROTECTION IC FOR 3-SERIES OR 4-SERIES CELL PACK
S-8204A Series
Rev.1.5_00
Seiko Instruments Inc.
14
Operation
Remark Refer to “
Connection Example of Battery Protection IC”.
1. Normal Status
In the S-8204A Series, both of COP and DOP pins get the VSS level; when all values of battery voltage
are in the range of overdischarge detection voltage (VDLn) to overcharge detection voltage (VCUn), and due
to the discharge or charge current, the VINI pin’s voltage is in the range of charge overcurrent detection
voltage (VCIOV) to discharge overcurrent detection voltage 1 (VDIOV1). This is the normal status. In addition,
the charge/discharge FETs are on.
2. Overcharge Status
In the S-8204A Series, when any voltage of the batteries increases to the level of VCUn or more, the COP
pin is set in high impedance. This is the overcharge status. The COP pin is pulled up to EB+ by an
external resistor so that the charge FET is turned off and it stops charging.
This overcharge status is released if either condition 1 or 2 is satisfied;
(1) In case that the VMP pin voltage is set 39/40
× VDS or more; all voltages of the batteries are in the
level of overcharge release voltage (VCLn) or more.
(2) In case that the VMP pin voltage is set 39/40
× VDS or less; all voltages of the batteries are in the
level of VCUn or less.
3. Overdischarge Status
In the S-8204A Series, when any voltage of the batteries decreases to the level of VDLn or less, the DOP
pin voltage gets the VDD level. This is the overdischarge status. The discharge FET is turned off and it
stops discharging.
This overdischarge status is released/maintained if either condition 1 to 3 is satisfied;
(1) To release; the VMP pin voltage is in the VDD level or more, all voltages of the batteries are in the
VDLn level or more.
(2) To release; the VMP pin voltage is VDS/2 or more and the VMP pin voltage is in the VDD level or
less; all voltages of the batteries are in the level of overdischarge release voltage (VDUn) or more.
(3) The VMP pin voltage is VDS/2 or less, the S-8204A Series maintains the power-down status.
4. Power-down Status
In the S-8204A Series, when it reaches the overcharge status, the VMP pin is pulled down to the VSS level
by a resistor between VMP and VSS pin (RVMS). If the VMP pin voltage decreases to the level of VDS/2 or
less, almost every circuit in the S-8204A stops working so that the current consumption decreases to the
level of current consumption at power down (IPDN) or less. This is the power-down status. In this status,
the COP pin is set in high impedance.
The power-down status is released if the following condition is satisfied.
(1) The VMP pin voltage gets VDS/2 or more.
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相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| S-8204AAB-TCT1U | 制造商:Seiko Instruments Inc (SII) 功能描述:BATTERY PROTECTION - Tape and Reel |
| S-8204AAC-TCT1G | 功能描述:電池管理 LITHIUM-ION BATTERY PROTECTION 3/4 CELL 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 |
| S-8204AAC-TCT1S | 功能描述:電池管理 LITHIUM-ION BATTERY PROTECTION 3/4 CELL 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 |
| S-8204AAD-TCT1G | 功能描述:電池管理 LITHIUM-ION BATTERY PROTECTION 3/4 CELL 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 |
| S-8204AAD-TCT1S | 制造商:Seiko Instruments Inc (SII) 功能描述:BATTERY PROTECTION - Tape and Reel 制造商:Seiko Instruments Inc (SII) 功能描述:LITHIUM-ION BATTERY PROTECTION 3/4 CELL 制造商:Seiko Instruments Inc (SII) 功能描述:Battery Protection Li-Ion 3.8V 16-Pin TSSOP T/R |
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