參數(shù)資料
型號(hào)： 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(yè)數(shù)： 8/32頁(yè)
文件大小： 982K
代理商： S-8204AAB-TCT1G
BATTERY PROTECTION IC FOR 3-SERIES OR 4-SERIES CELL PACK
S-8204A Series
Rev.1.5_00
Seiko Instruments Inc.
16
8. Delay Time Setting
In the S-8204A Series, users are able to set delay time for the period; from detecting any voltage of the
batteries or detecting changes in the voltage at the VINI pin, to the output to the COP, DOP pin. Each
delay time is determined by a resistor in the IC and an external capacitor.
In the overchage detection, when any voltage of the batteries gets VCUn or more, the S-8204 starts
charging to the CCT pin’s capacitor (CCCT) via the CCT pin’s internal resistor (RINC). After a certain period,
the COP pin is set in high impedance if the voltage at the CCT pin reaches the CCT pin detection voltage
(VCCT). This period is overcharge detection delay time (tCU).
tCU is calculated using the following equation (VDS = V1 + V2 + V3 + V4).
tCU [s] =
ln ( 1 VCCT / VDS ) × CCCT [F] × RINC [M]
=
ln ( 1 0.7 (Typ.)) × CCCT [F] × 8.31 [M] (Typ.)
= 10.0 [M
] (Typ.) × CCCT [F]
Overdischarge detection delay time (tDL), discharge overcurrent detection delay time 1 (tDIOV1), discharge
overcurrent detection delay time 2 (tDIOV2), charge overcurrent detection delay time (tCIOV) are calculated
using the following equations as well.
tDL [ms] = ln ( 1 VCDT / VDS)
× CCDT [F] × RIND [k]
tDIOV1 [ms] = ln ( 1 VCIT / VDS)
× CCIT [F] × RINI1 [k]
tDIOV2 [ms] = ln ( 1 VCIT / VDS)
× CCIT [F] × RINI2 [k]
tCIOV [ms] = ln ( 1 VCIT / VDS)
× CCIT [F] × RINI1 [k]
In case CCCT = CCDT = CCIT = 0.1 [
F], each delay time tCU, tDL, tDIOV1, tDIOV2, tCIOV is calculated as follows.
tCU [s] = 10.0 [M
] (Typ.) × 0.1 [F] = 1.0 [s] (Typ.)
tDL [ms] = 1000 [k
] (Typ.) × 0.1 [F] = 100 [ms] (Typ.)
tDIOV1 [ms] = 200 [k
] (Typ.) × 0.1 [F] = 20 [ms] (Typ.)
tDIOV2 [ms] = 20 [k
] (Typ.) × 0.1 [F] = 2.0 [ms] (Typ.)
tCIOV [ms] = 200 [k
] (Typ.) × 0.1 [F] = 20 [ms] (Typ.)
Short circuit detection voltage delay time (tSHORT) is fixed internally.
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相關(guān)代理商/技術(shù)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
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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
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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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