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參數(shù)資料
| 型號(hào)： | S-8244AAZPH-CEZTFG |
| 元件分類： | 電源管理 |
| 英文描述： | 1-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO8 |
| 封裝： | LEAD FREE, SNT-8 |
| 文件頁數(shù)： | 32/32頁 |
| 文件大?。?/td> | 320K |
| 代理商： | S-8244AAZPH-CEZTFG |
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BATTERY PROTECTION IC FOR 1-SERIAL TO 4-SERIAL-CELL PACK (SECONDARY PROTECTION)
Rev.6.0_00
S-8244 Series
Seiko Instruments Inc.
9
Test Circuits
(1) Test Condition 1, Test Circuit 1
Set switches 1 and 2 to OFF for CMOS output product.
Set switch 1 to ON and switch 2 to OFF for Nch open drain product.
Set switch 1 to OFF and switch 2 to ON for Pch open drain product.
Product with CMOS output active “H”, Nch open drain output active “H”
The overcharge detection voltage 1 (VCU1) is a voltage at V1; when the CO pin’s voltage is set to “H” by increasing
V1 gradually, after setting V1 = V2 = V3 = V4 = 3.5 V. After that, gradually decreasing V1’s voltage to set CO = “L”,
and the difference of this V1’s voltage and VCU1 is the overcharge hysteresis voltage 1 (VCD1).
Product with CMOS output active “L”, Nch open drain output active “L”, Pch open drain output active “L”
The overcharge detection voltage 1 (VCU1) is a voltage at V1; when the CO pin’s voltage is set to “L” by increasing
V1 gradually, after setting V1 = V2 = V3 = V4 = 3.5 V. After that, gradually decreasing V1’s voltage to set CO =
“H”, and the difference of this V1’s voltage and VCU1 is the overcharge hysteresis voltage 1 (VCD1).
(2) Test Condition 2, Test Circuit 1
Set switches 1 and 2 to OFF for CMOS output product.
Set switch 1 to ON and switch 2 to OFF for Nch open drain product.
Set switch 1 to OFF and switch 2 to ON for Pch open drain product.
Product with CMOS output active “H”, Nch open drain output active “H”
The overcharge detection voltage 2 (VCU2) is a voltage at V2; when the CO pin’s voltage is set to “H” by increasing
V2 gradually, after setting V1 = V2 = V3 = V4 = 3.5 V. After that, gradually decreasing V2’s voltage to set CO = “L”,
and the difference of this V2’s voltage and VCU2 is the overcharge hysteresis voltage 2 (VCD2).
Product with CMOS output active “L”, Nch open drain output active “L”, Pch open drain output active “L”
The overcharge detection voltage 2 (VCU2) is a voltage at V2; when the CO pin’s voltage is set to “L” by increasing
V2 gradually, after setting V1 = V2 = V3 = V4 = 3.5 V. After that, gradually decreasing V2’s voltage to set CO =
“H”, and the difference of this V2’s voltage and VCU2 is the overcharge hysteresis voltage 2 (VCD2).
(3) Test Condition 3, Test Circuit 1
Set switches 1 and 2 to OFF for CMOS output product.
Set switch 1 to ON and switch 2 to OFF for Nch open drain product.
Set switch 1 to OFF and switch 2 to ON for Pch open drain product.
Product with CMOS output active “H”, Nch open drain output active “H”
The overcharge detection voltage 3 (VCU3) is a voltage at V3; when the CO pin’s voltage is set to “H” by increasing
V3 gradually, after setting V1 = V2 = V3 = V4 = 3.5 V. After that, gradually decreasing V3’s voltage to set CO = “L”,
and the difference of this V3’s voltage and VCU3 is the overcharge hysteresis voltage 3 (VCD3).
Product with CMOS output active “L”, Nch open drain output active “L”, Pch open drain output active “L”
The overcharge detection voltage 3 (VCU3) is a voltage at V3; when the CO pin’s voltage is set to “L” by increasing
V3 gradually, after setting V1 = V2 = V3 = V4 = 3.5 V. After that, gradually decreasing V3’s voltage to set CO =
“H”, and the difference of this V3’s voltage and VCU3 is the overcharge hysteresis voltage 3 (VCD3).
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