S8205A Datasheet, PDF (1/32 Pages) Seiko Instruments Inc – FOR 4-SERIES OR 5-SERIES CELL PACK

S-8205A/B Series
www.sii-ic.com
© Seiko Instruments Inc., 2010-2015
BATTERY PROTECTION IC
FOR 4-SERIES OR 5-SERIES CELL PACK
Rev.1.6_01
The S-8205A/B Series includes high-accuracy voltage detection circuits and delay circuits, in single use, makes it possible
for users to monitor the status of 4-series or 5-series cell lithium-ion rechargeable battery.
The S-8205A/B Series is suitable for protecting lithium-ion rechargeable battery pack from overcharge, overdischarge, and
overcurrent.
 Features
• High-accuracy voltage detection function for each cell
Overcharge detection voltage n (n = 1 to 5)
3.55 V to 4.40 V^*1 (50 mV step)
Overcharge release voltage n (n = 1 to 5)
3.30 V to 4.40 V^*2
Overdischarge detection voltage n (n = 1 to 5)
2.0 V to 3.2 V^*1 (100 mV step)
Overdischarge release voltage n (n = 1 to 5)
2.0 V to 3.4 V^*3
Accuracy ±25 mV
Accuracy ±50 mV
Accuracy ±80 mV
Accuracy ±100 mV
• Discharge overcurrent detection in 2-step
Discharge overcurrent detection voltage
Short circuit detection voltage
0.05 V to 0.30 V^*4 (50 mV step)
0.50 V to 1.0 V^*4 (100 mV step)
Accuracy ±15 mV
Accuracy ±100 mV
• Charge overcurrent detection
Charge overcurrent detection voltage
−0.30 V to −0.05 V (50 mV step) Accuracy ±30 mV
• Settable by external capacitor; Overcharge detection delay time, Overdischarge detection delay time, Discharge
overcurrent detection delay time, Charge overcurrent detection delay time
(Load short circuit detection delay time is internally fixed.)
• S-8205A Series: used for 4-series cell, S-8205B Series: used for 5-series cell
• Independent charging and discharge control by the control pins
• Power-down function "yes" / "no" is selectable.
• High-withstand voltage element
Absolute maximum rating : 28 V
• Wide range of operation voltage
2 V to 24 V
• Wide range of operation temperature
Ta = −40°C to +85°C
• Low current consumption
During operation
40 μA max. (Ta = +25°C)
During power-down
• Lead-free (Sn 100%), halogen-free^*5
0.1 μA max. (Ta = +25°C)
*1. The overcharge detection voltage n (n = 1 to 5) and overdischarge detection voltage (n = 1 to 5) are not selectable
if the voltage difference between them is 0.6 V or less.
*2. Overcharge hysteresis voltage n (n = 1 to 5) is selectable in 0 V, or in 0.1 V to 0.4 V in 50 mV step.
(Overcharge hysteresis voltage = Overcharge detection voltage − Overcharge release voltage)
*3. Overdischarge hysteresis voltage n (n = 1 to 5) is selectable in 0 V, or in 0.2 V to 0.7 V in 100 mV step.
(Overdischarge hysteresis voltage = Overdischarge release voltage − Overdischarge detection voltage)
*4. The discharge overcurrent detection voltage and load short circuit detection voltage are not selectable if the voltage
difference between them is 0.3 V or less.
*5. Refer to " Product Name Structure" for details.
 Application
• Rechargeable lithium-ion battery pack
 Package
• 16-Pin TSSOP
Seiko Instruments Inc.
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