Power Management ICs

Battery Protection IC with Cell-Balance Function S-8209B Series

DatasheetJul. 29, 2019

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The S-8209B Series is a protection IC for lithium-ion / lithium polymer rechargeable batteries and includes a high-accuracy voltage detection circuit and a delay circuit. This IC has a transmission function and two types of cell-balance function so that users are also able to configure a protection circuit with series multi-cell.

*Application Note: S-8209B Series Usage Guidelines

Features

High-accuracy voltage detection circuit
Overcharge detection voltage 3.9 V to 4.4 V (5 mV step) Accuracy ±25 mV
Overcharge release voltage 3.8 V to 4.4 V*1 Accuracy ±50 mV
Cell-balance detection voltage 3.9 V to 4.4 V (5 mV step)*2 Accuracy ±25 mV
Cell-balance release voltage 3.8 V to 4.4 V*3 Accuracy ±50 mV
Overdischarge detection voltage 2.0 V to 3.0 V (10 mV step) Accuracy ±50 mV
Overdischarge detection voltage 2.0 V to 3.4 V*4 Accuracy ±100 mV
Settable delay time by external capacitor for output pin
Control charging, discharging, cell-balance by CTLC, CTLD pins
Two types of cell-balance function; charge/discharge
Wide range of operation temperature
−40°C to +85°C
Low current consumption
7.0 µA max.
Lead-free product

*1. Overcharge release voltage = Overcharge detection voltage − Overcharge hysteresis voltage
(Overcharge hysteresis voltage is selectable in 0 V, or in 0.1 V to 0.4 V in 50 mV step.)
*2. Overcharge detection voltage > Cell-balance detection voltage
(Overcharge detection voltage is always set higher than Cell-balance detection voltage)
*3. Cell-balance release voltage = Cell-balance detection voltage − Cell-balance hysteresis voltage
(Cell-balance hysteresis voltage is selectable in 0 V, or in 0.1 V to 0.4 V in 50 mV step.)
*4. Overdischarge release voltage = Overdischarge detection voltage + Overdischarge hysteresis voltage
(Overdischarge hysteresis voltage is selectable in 0 V, in 0.1 V to 0.7 V in 100 mV step.)

Applications

  • Lithium-ion rechargeable battery packs
  • Lithium polymer rechargeable battery packs

Parts List

Product name
y: S or U
PackageOvercharge
Detection Voltage
[VCU]
(V)
Overcharge
Release Voltage
[VCL]
(V)
Cell-balance
Detection Voltage
[VBU]
(V)
Cell-balance
Release Voltage
[VBL]
(V)
Overdischarge
Detection Voltage
[VDL]
(V)
Overdischarge
Release Voltage
[VDU]
(V)
Discharge
Cell-balance
Function
Product name
S-8209BAA-T8T1y8-Pin TSSOP4.1004.0004.0504.0002.502.70Yes
S-8209BAD-T8T1y8-Pin TSSOP4.1503.9503.9003.9002.002.70Yes
S-8209BAG-T8T1y8-Pin TSSOP3.8003.6503.7003.7002.202.50No
S-8209BAH-T8T1y8-Pin TSSOP4.2504.1504.2004.2002.502.80No
S-8209BAI-T8T1y8-Pin TSSOP4.2504.1504.1004.0502.502.70Yes
S-8209BAJ-T8T1y8-Pin TSSOP4.1503.9503.9003.9002.303.00No
S-8209BAK-T8T1y8-Pin TSSOP4.2154.2154.1904.1902.002.50Yes
S-8209BAL-T8T1y8-Pin TSSOP4.3004.1004.2254.2252.002.50Yes
S-8209BAN-T8T1U8-Pin TSSOP4.2504.1504.2004.2002.002.10No
S-8209BAO-T8T1U8-Pin TSSOP4.3004.2004.2004.2002.303.00No
S-8209BAP-T8T1U8-Pin TSSOP3.9003.9003.7003.7002.002.50Yes
S-8209BAU-T8T1U8-Pin TSSOP4.2254.1754.2154.1652.303.00Yes
S-8209BAW-T8T1U8-Pin TSSOP4.2254.1754.2154.1652.303.00No
S-8209BAX-T8T1U8-Pin TSSOP4.2104.1604.1904.1402.503.20No
S-8209BAY-T8T1U8-Pin TSSOP4.2104.1604.1904.1402.503.00No
S-8209BAZ-T8T1U8-Pin TSSOP4.1954.1454.1004.0502.502.70No
S-8209BBA-T8T1U8-Pin TSSOP3.7003.5003.5503.5502.002.50Yes
S-8209BBB-T8T1U8-Pin TSSOP4.2754.2254.1454.0952.002.30No
S-8209BBC-T8T1U8-Pin TSSOP4.2004.1004.1454.0952.002.30No
S-8209BAA-I8T1USNT-8A4.1004.0004.0504.0002.502.70Yes
S-8209BAM-I8T1USNT-8A4.0003.8003.9003.8503.003.40No
S-8209BAO-I8T1USNT-8A4.3004.2004.2004.2002.303.00No
S-8209BAP-I8T1USNT-8A3.9003.9003.7003.7002.002.50Yes
S-8209BAR-I8T1USNT-8A4.2304.1704.1804.1802.803.00No

Please confirm the product name and specifications with the data sheet again.

Last modified: May. 22, 2018

  • These descriptions may be different from the actual product name and parameter.
    Please confirm the product name and specifications with the data sheet again.
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