Power Management ICs

Battery Protection IC with Charge-discharge Control Function for 1-Cell Pack S-82B1A Series

DatasheetJul. 29, 2019

The S-82B1A Series is a protection IC for lithium-ion / lithium polymer rechargeable batteries and includes high-accuracy voltage detection circuits and delay circuits. It is suitable for protecting 1-cell lithium-ion / lithium polymer rechargeable battery packs from overcharge, overdischarge, and overcurrent.
The S-82B1A Series has an input pin for charge-discharge control signal, allowing for charge-discharge control with an external signal.

Features

High-accuracy voltage detection circuit
Overcharge detection voltage 3.5 V to 4.6 V (5 mV step) Accuracy ±20 mV
Overcharge release voltage 3.1 V to 4.6 V*1 Accuracy ±50 mV
Overdischarge detection voltage 2.0 V to 3.0 V (10 mV step) Accuracy ±50 mV
Overdischarge release voltage 2.0 V to 3.4 V*2 Accuracy ±100 mV
Discharge overcurrent detection voltage 1 0.010 V to 0.100 V (1 mV step) Accuracy ±3 mV
Discharge overcurrent detection voltage 2 0.030 V to 0.200 V (1 mV step) Accuracy ±5 mV
Load short-circuiting detection voltage 0.050 V to 0.500 V (5 mV step) Accuracy ±20 mV
Charge overcurrent detection voltage −0.100 V to −0.010 V (1 mV step) Accuracy ±3 mV
Detection delay times are generated only by an internal circuit (external capacitors are unnecessary).
Charge-discharge control function
CTL pin control logic is selectable: Active “H”, active “L”
CTL pin internal resistance connection is selectable: Pull-up, pull-down
CTL pin internal resistance value is selectable: 1.0 MΩ, 2.0 MΩ, 3.0 MΩ, 4.0 MΩ, 5.0 MΩ
0 V battery charge function is selectable
Available, unavailable
Power-down function is selectable
Available, unavailable
Release condition of discharge overcurrent status is selectable
Load disconnection, charger connection
Release voltage of discharge overcurrent status is selectable
Discharge overcurrent detection voltage 1 (Vdiov1),
Discharge overcurrent release voltage (Vriov) = Vdd × 0.8 (typ.)
High-withstand voltage
VM pin and CO pin: Absolute maximum rating 28 V
Wide operation temperature range
Ta = −40°C to +85°C
Low current consumption
During operation: 2.0 μA typ., 4.0 μA max. (Ta = +25°C)
During power-down: 50 nA max. (Ta = +25°C)
During overdischarge: 500 nA max. (Ta = +25°C)
Lead-free (Sn 100%), halogen-free

*1. 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 0.4 V in 50 mV step.)

*2. Overdischarge release voltage = Overdischarge detection voltage + Overdischarge hysteresis voltage
(Overdischarge hysteresis voltage can be selected as 0 V or from a range of 0.1 V to 0.7 V in 100 mV step.)

Applications

  • Lithium-ion rechargeable battery pack
  • Lithium polymer rechargeable battery pack

Parts List

Product NamePackageOvercharge
Detection
Voltage
[VCU]
(V)
Overcharge
Release
Voltage
[VCL]
(V)
Overdischarge
Detection
Voltage
[VDL]
(V)
Overdischarge
Release
Voltage
[VDU]
(V)
Discharge
Overcurrent
Detection
Voltage 1
[VDIOV1]
(V)
Discharge
Overcurrent
Detection
Voltage 2
[VDIOV2]
(V)
Load
Short-circuiting
Detection
Voltage
[VSHORT]
(V)
Charge
Overcurrent
Detection
Voltage
[VCIOV]
(V)
CTL Pin
Control Logic
CTL Pin
Internal Resistance
Connection
CTL Pin
Internal
Resistance
Value
[RCTL]
(MΩ)
0 V
Battery
Charge
Function
Power-down
Function
Release
Condition of
Discharge
Overcurrent
Status
Release
Voltage of
Discharge
Overcurrent
Status
Overcharge
Detection
Delay Time
[tCU]
(s)
Overdischarge
Detection
Delay Time
[tDL]
(ms)
Discharge
Overcurrent
Detection
Delay Time 1
[tDIOV1]
(ms)
Discharge
Overcurrent
Detection
Delay Time 2
[tDIOV2]
(ms)
Load
Short-circuiting
Detection
Delay Time
[tSHORT]
(μs)
Charge
Overcurrent
Detection
Delay Time
[tCIOV]
(ms)
Charge-
discharge
Inhibition
Delay Time
[tCTL]
(ms)
Product Name
S-82B1AAA-I6T1USNT-6A4.4754.2752.52.90.060.080.20.04Active "H"Pull-up5AvailableUnavailableLoad disconnectionVRIOV164400032280832
S-82B1AAB-I6T1USNT-6A4.3754.1752.52.90.050.10.05Active "H"Pull-up5AvailableAvailableLoad disconnectionVRIOV1648280832

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

Last modified: Jun. 13, 2016

  • 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.