S-8211D Series
BATTERY PROTECTION IC
FOR 1-CELL PACK
www.sii-ic.com
Rev.6.0_00
© Seiko Instruments Inc., 2005-2010
The S-8211D Series are protection ICs for single-cell lithium-ion / lithium-polymer rechargeable batteries and include highaccuracy voltage detectors and delay circuits.
These ICs are suitable for protecting single-cell rechargeable lithium-ion / lithium-polymer battery packs from overcharge,
overdischarge, and overcurrent.
Features
(1) High-accuracy voltage detection circuit
• Overcharge detection voltage
(2)
(3)
(4)
(5)
(6)
(7)
(8)
Accuracy ±25 mV (+25°C)
Accuracy ±30 mV (−5°C to +55°C)
• Overcharge release voltage
3.5 V to 4.4 V*1
Accuracy ±50 mV
• Overdischarge detection voltage
2.0 V to 3.0 V (10 mV step)
Accuracy ±50 mV
*2
Accuracy ±100 mV
• Overdischarge release voltage
2.0 V to 3.4 V
• Discharge overcurrent detection voltage
0.05 V to 0.30 V (10 mV step)
Accuracy ±15 mV
• Load short-circuiting detection voltage
0.5 V (fixed)
Accuracy ±200 mV
Detection delay times are generated by an internal circuit (external capacitors are unnecessary).
Accuracy ±20%
High-withstanding voltage device is used for charger connection pins (VM pin and CO pin : Absolute maximum
rating = 28 V)
0 V battery charge function available / unavailable are selectable.
Shutdown function yes / no are selectable.
Wide operating temperature range
−40°C to +85°C
Low current consumption
• Operation mode
3.0 μA typ., 5.5 μA max. (+25°C)
• Power-down mode
0.2 μA max. (+25°C)
*3
Lead-free, Sn 100%, halogen-free
3.6 V to 4.4 V (5 mV step)
*1. Overcharge release voltage = Overcharge detection voltage − Overcharge hysteresis voltage
(Overcharge hysteresis voltage can be selected as 0 V or from a range of 0.1 V to 0.4 V in 50 mV step.)
*2. Overdischarge release voltage = Overdischarge detection voltage + Overdischarge hysteresis voltage
(Overdischarge hysteresis voltage can be selected as 0 V or from a range of 0.1 V to 0.7 V in 100 mV step.)
*3. Refer to “ Product Name Structure” for details.
Applications
• Lithium-ion rechargeable battery packs
• Lithium-polymer rechargeable battery packs
Packages
• SOT-23-5
• SNT-6A
Seiko Instruments Inc.
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