Power Management ICs

Voltage Monitoring IC with Cell Balancing Function S-8249 Series

The S-8249 Series is a voltage monitoring IC with a cell balancing function and includes a high-accuracy voltage detection circuit and a delay circuit.
The S-8249 Series is suitable for cell balancing and overcharge protection of batteries and capacitors.

Features

High-accuracy voltage detection circuit
Cell balancing detection voltage: 2.0 V to 4.6 V (5 mV step)
Accuracy ±12 mV (2.0 V≦Vbu<2.4 V), Accuracy ±0.5% (2.4 V≦Vbu≦4.6 V)
Cell balancing release voltage: 2.0 V to 4.6 V*1
Accuracy ±24 mV (2.0 V≦Vbl<2.4 V) , Accuracy ±1.0% (2.4 V≦Vbl≦4.6 V)
Overcharge detection voltage: 2.0 V to 4.6 V (5 mV step)
Accuracy ±12 mV (2.0 V≦Vcu<2.4 V) , Accuracy ±0.5% (2.4 V≦Vcu≦4.6 V)
Overcharge release voltage: 2.0 V to 4.6 V*2
Accuracy ±24 mV (2.0 V≦Vcl<2.4 V) , Accuracy ±1.0% (2.4 V≦Vcl≦4.6 V)
Built-in Nch transistor with ON resistance of 5 Ω typ. between the CB pin and the VSS pin
Current consumption
2.0 μA max. (Ta = +25°C)
Delay times are generated only by an internal circuit (External capacitors are unnecessary).
CO pin output form and output logic are selectable
CMOS output Active “H”, active “L”
Nch open-drain output Active “H”, active “L”
Switchable to power-saving mode by using the CE pin
Operation temperature range
Ta = −40°C to +85°C
Lead-free (Sn 100%), halogen-free

*1. Cell balancing release voltage = Cell balancing detection voltage − Cell balancing hysteresis voltage
(Cell balancing hysteresis voltage can be selected as 0 V or from a range of 0.1 V to 0.7 V in 50 mV step.)

*2. 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 0.7 V in 50 mV step.)

Applications

  • Rechargeable battery module
  • Capacitor module

Parts List

Product NamePackageCell Balancing
Detection
Voltage
[VBU]
(V)
Cell Balancing
Release
Voltage
[VBL]
(V)
Overcharge
Detection
Voltage
[VCU]
(V)
Overcharge
Release
Voltage
[VCL]
(V)
CO Pin
Output Form
CO Pin
Output Logic
Cell Balancing
Detection
Delay Time
[tBU]
(ms)
Cell Balancing
Release
Delay Time
[tBL]
(ms)
Overcharge
Detection
Delay Time
[tCU]
(ms)
Overcharge
Release
Delay Time
[tCL]
(ms)
Product Name
S-8249AAA-M6T1USOT-23-62.6002.6002.7502.750CMOS outputActive "H"1281.01281.0
S-8249AAB-M6T1USOT-23-63.0003.0003.1503.150CMOS outputActive "H"1281.01281.0
S-8249AAC-M6T1USOT-23-63.0003.0003.2003.200CMOS outputActive "H"1281.01281.0
S-8249AAD-M6T1USOT-23-63.1003.1003.2503.250CMOS outputActive "H"1281.01281.0
S-8249AAE-M6T1USOT-23-63.1003.1003.3003.300CMOS outputActive "H"1281.01281.0
S-8249AAF-M6T1USOT-23-62.6002.6002.8002.800CMOS outputActive "H"1281.01281.0
S-8249AAG-M6T1USOT-23-62.4002.4002.9002.900CMOS outputActive "H"1281.01281.0
S-8249AAH-M6T1USOT-23-62.4002.4003.0003.000CMOS outputActive "H"1281.01281.0
S-8249AAI-M6T1USOT-23-62.1002.1003.0003.000CMOS outputActive "H"1281.01281.0
S-8249AAK-M6T1USOT-23-62.4002.4003.2003.200CMOS outputActive "H"1281.01281.0
S-8249AAL-M6T1USOT-23-62.1002.0003.2003.200CMOS outputActive "H"1281.01281.0
S-8249AAM-M6T1USOT-23-62.6202.5202.8002.700CMOS outputActive "H"1281.01281.0
S-8249AAN-M6T1USOT-23-63.3003.3004.0803.930CMOS outputActive "H"1281.01281.0
S-8249AAO-M6T1USOT-23-62.0002.0003.0003.000CMOS outputActive "H"1281.01281.0
S-8249AAP-M6T1USOT-23-63.7003.7004.5004.500CMOS outputActive "H"1281.01281.0
S-8249AAQ-M6T1USOT-23-63.8003.8004.0803.930CMOS outputActive "H"1281.01281.0
S-8249AAR-M6T1USOT-23-62.8002.8003.1503.150CMOS outputActive "H"1281.01281.0
S-8249AAS-M6T1USOT-23-62.8002.8003.2003.200CMOS outputActive "H"1281.01281.0
S-8249AAT-M6T1USOT-23-62.8002.8003.1003.100CMOS outputActive "H"1281.01281.0
S-8249AAU-M6T1USOT-23-62.5002.4003.8003.700CMOS outputActive "H"1281.01281.0
S-8249AAV-M6T1USOT-23-62.3002.2003.8003.700CMOS outputActive "H"1281.01281.0
S-8249AAW-M6T1USOT-23-62.6502.6002.7502.650Nch open-drain outputActive "L"1281.01281.0
S-8249AAY-M6T1USOT-23-64.1504.1504.2754.275CMOS outputActive "H"1281.010241.0
S-8249ABA-M6T1USOT-23-63.6503.5503.8003.500CMOS outputActive "L"642.02562.0
S-8249ABB-M6T1USOT-23-64.3504.3504.4254.325CMOS outputActive "L"642.02562.0
S-8249ABC-M6T1USOT-23-64.2004.2004.3004.200CMOS outputActive "L"642.02561.0

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

Last modified: Feb. 20, 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.
  • The information herein is subject to change without notice.