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Seiko Instruments Electronic Components Datasheet

S-8205BAB-TCT1U Datasheet

BATTERY PROTECTION IC

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S-8205BAB-TCT1U pdf
S-8205A/B Series
www.sii-ic.com
© SII Semiconductor Corporation, 2010-2016
BATTERY PROTECTION IC
FOR 4-SERIES OR 5-SERIES CELL PACK
Rev.1.8_00
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 4.50 V*1 (50 mV step)
Overcharge release voltage n (n = 1 to 5)
3.30 V to 4.50 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
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
1


Seiko Instruments Electronic Components Datasheet

S-8205BAB-TCT1U Datasheet

BATTERY PROTECTION IC

No Preview Available !

S-8205BAB-TCT1U pdf
BATTERY PROTECTION IC FOR 4-SERIES OR 5-SERIES CELL PACK
S-8205A/B Series
Block Diagram
1. S-8205A Series
Rev.1.8_00
VM
CO
DO
VINI
CTLC
CTLD
CCT
CDT
RVMD
RVMS
Control circuit
Delay circuit
Delay circuit
Delay circuit
+
Discharge
+ overcurrent
Load
short circuit
+
Charge
overcurrent
Delay circuit
Delay circuit
Overcharge 1
Over- +
discharge 1+
Overcharge 2
Over-
+
discharge 2 +
Overcharge 3
Over-
+
discharge 3 +
Overcharge 4
Over-
+
discharge 4 +
RCTLC
RCTLD
Remark Diodes in the figure are parasitic diodes.
2
Figure 1
VDD
VC1
VC2
VC3
VC4
VC5
VSS
CIT


Part Number S-8205BAB-TCT1U
Description BATTERY PROTECTION IC
Maker Seiko
Total Page 30 Pages
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