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PDF S-8213 Data sheet ( Hoja de datos )
| Número de pieza | S-8213 | |
| Descripción | BATTERY PROTECTION IC | |
| Fabricantes | Seiko Instruments | |
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S-8213 Series
www.sii-ic.com
© Seiko Instruments Inc., 2012-2015
BATTERY PROTECTION IC FOR 2-SERIAL / 3-SERIAL CELL PACK
(SECONDARY PROTECTION)
Rev.1.3_01
The S-8213 Series is used for secondary protection of lithium-ion rechargeable batteries, and incorporates a high-accuracy
voltage detection circuit and a delay circuit. Short-circuits between VC3 to VSS accommodate serial connection of two cells or
three cells.
Features
• High-accuracy voltage detection circuit for each cell
Overcharge detection voltage n (n = 1 to 3)
4.10 V to 4.50 V (in 50 mV steps)
Accuracy: ±25 mV (Ta = +25°C)
Accuracy: ±30 mV (Ta = 0°C to +60°C)
Overcharge hysteresis voltage n (n = 1 to 3)
0 V ± 25 mV, −0.05 V ± 25 mV, −0.40 V ± 80 mV
• Delay times for overcharge detection can be set by an internal circuit only (external capacitors are unnecessary)
• Output form is selectable:
CMOS output, Nch open-drain output
• Output logic is selectable:
Active "H", Active "L"
• High withstand voltage devices:
Absolute maximum rating 26 V
• Wide operation voltage range:
3.6 V to 24 V
• Wide operation temperature range: Ta = −40°C to +85°C
• Low current consumption
At VCUn − 1.0 V for each cell:
2.0 μA max. (Ta = +25°C)
At 2.0 V for each cell:
0.3 μA max. (Ta = +25°C)
• Lead-free (Sn 100%), halogen-free*1
*1. Refer to " Product Name Structure" for details.
Application
• Lithium-ion rechargeable battery pack (for secondary protection)
Packages
• SOT-23-6
• SNT-6A
Seiko Instruments Inc.
1
1 page  
Rev.1.3_01
BATTERY PROTECTION IC FOR 2-SERIAL / 3-SERIAL CELL PACK (SECONDARY PROTECTION)
S-8213 Series
Pin Configurations
1. SOT-23-6
Top view
654
123
Figure 3
Pin No. Symbol
1 VSS
2 VC3
3 VC2
4 VC1
5 VDD
6 CO
Table 3
Description
Input pin for negative power supply,
connection pin for negative voltage of battery 3
Connection pin for negative voltage of battery 2,
connection pin for positive voltage of battery 3
Connection pin for negative voltage of battery 1,
connection pin for positive voltage of battery 2
Connection pin for positive voltage of battery 1
Input pin for positive power supply
Connection pin of charge control FET gate
2. SNT-6A
Top view
16
25
34
Figure 4
Pin No. Symbol
1 CO
2 VDD
3 VC1
4 VC2
5 VC3
6 VSS
Table 4
Description
Connection pin of charge control FET gate
Input pin for positive power supply
Connection pin for positive voltage of battery 1
Connection pin for negative voltage of battery 1,
connection pin for positive voltage of battery 2
Connection pin for negative voltage of battery 2,
connection pin for positive voltage of battery 3
Input pin for negative power supply,
connection pin for negative voltage of battery 3
Seiko Instruments Inc.
5
5 Page 
Rev.1.3_01
BATTERY PROTECTION IC FOR 2-SERIAL / 3-SERIAL CELL PACK (SECONDARY PROTECTION)
S-8213 Series
Operation
Remark Refer to " Battery Protection IC Connection Examples".
1. Normal status
If the voltage of each of the batteries is lower than "the overcharge detection voltage (VCUn) + the overcharge hysteresis
voltage (VHCn)", CO pin output changes to "L" (Active "H") or "H" (Active "L"). This is called normal status.
2. Overcharge status
When the voltage of one of the batteries exceeds VCUn during charging under normal conditions and the status is
retained for the overcharge detection delay time (tCU) or longer, CO pin output changes. This is called overcharge
status. Connecting FET to the CO pin provides charge control and a second protection.
If the voltage of each of the batteries is lower than VCUn + VHCn and the status is retained for 2.0 ms typ. or longer, the
S-8213 Series changes to normal status.
Seiko Instruments Inc.
11
11 Page | ||
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