S-8249AAP-M6T1U Datasheet, PDF (1/22 Pages) Seiko Instruments Inc – VOLTAGE MONITORING IC WITH CELL BALANCING FUNCTION

S-8249 Series
www.sii-ic.com
VOLTAGE MONITORING IC WITH CELL BALANCING FUNCTION
© SII Semiconductor Corporation, 2015-2016
Rev.1.2_00
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 ≤ V_BU < 2.4 V)
Cell balancing release voltage: 2.0 V to 4.6 V^*1
Accuracy ±0.5% (2.4 V ≤ V_BU ≤ 4.6 V)
Accuracy ±24 mV (2.0 V ≤ V_BL < 2.4 V)
Accuracy ±1.0% (2.4 V ≤ V_BL ≤ 4.6 V)
Overcharge detection voltage: 2.0 V to 4.6 V (5 mV step)
Accuracy ±12 mV (2.0 V ≤ V_CU < 2.4 V)
Overcharge release voltage:
2.0 V to 4.6 V^*2
Accuracy ±0.5% (2.4 V ≤ V_CU ≤ 4.6 V)
Accuracy ±24 mV (2.0 V ≤ V_CL < 2.4 V)
Accuracy ±1.0% (2.4 V ≤ V_CL ≤ 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
 Package
• SOT-23-6
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