Power Management ICs

Battery Protection IC with Power-Saving Function for 1-Cell Pack S-82N1B Series

DatasheetAug. 25, 2021

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Features of S-82M1A/N1A/N1B Series. Contributes to longer battery life and higher safety.The S-82N1B Series is a protection IC for lithium-ion / lithium polymer rechargeable batteries, which 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-82N1B Series has an input pin for power-saving signal (PS pin), allowing for reduction of current consumption by using an external signal to start the power-saving function.

Features

High-accuracy voltage detection circuit
Overcharge detection voltage: 3.500 V to 4.600 V (5 mV step) Accuracy ±15 mV
Overcharge release voltage: 3.100 V to 4.600 V*1 Accuracy ±50 mV
Overdischarge detection voltage: 2.000 V to 3.000 V (10 mV step) Accuracy ±50 mV
Overdischarge release voltage: 2.000 V to 3.400 V*2 Accuracy ±100 mV
Discharge overcurrent detection voltage: 0.003 V to 0.100 V (1 mV step) Accuracy ±3 mV
Load short-circuiting detection voltage: 0.010 V to 0.200 V (1 mV step) Accuracy ±7 mV
Charge overcurrent detection voltage: −0.100 V to −0.003 V (1 mV step) Accuracy ±3 mV
Detection delay times are generated only by an internal circuit (external capacitors are unnecessary).
Power-saving function
PS pin control logic: Active “H”, active “L”
PS pin internal resistance connection: Pull-up, pull-down
PS pin internal resistance value: 1.0 MΩ, 2.0 MΩ, 3.0 MΩ, 4.0 MΩ, 5.0 MΩ
Discharge overcurrent control function
Release condition of discharge overcurrent status: Load disconnection, charger connection
Release voltage of discharge overcurrent status: Discharge overcurrent detection voltage (VDIOV), Discharge overcurrent release voltage (VRIOV) = VDD × 0.8 (typ.)
0 V battery charge
Enabled, inhibited
Power-down function
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: 600 nA typ., 990 nA max. (Ta = +25°C)
During power-down: 50 nA max. (Ta = +25°C)
During power-saving: 50 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

ProductPackageOvercharge
Detection
Voltage
[VCU]
(V)
Overcharge
Release
Voltage
[VCL]
(V)
Overdischarge
Detection
Voltage
[VDL]
(V)
Overdischarge
Release
Voltage
[VDU]
(V)
Discharge
Overcurrent
Detection
Voltage
[VDIOV]
(V)
Load
Short-circuiting
Detection
Voltage
[VSHORT]
(V)
Charge
Overcurrent
Detection
Voltage
[VCIOV]
(V)
Overcharge
Detection
Delay Time
[tCU]
(s)
Overdischarge
Detection
Delay Time
[tDL]
(ms)
Discharge
Overcurrent
Detection
Delay Time
[tDIOV]
(ms)
Load
Short-circuiting
Detection
Delay Time
[tSHORT]
(μs)
Charge
Overcurrent
Detection
Delay Time
[tCIOV]
(ms)
Power-saving
Delay Time
[tPS]
(ms)
PS Pin
Control
Logic
PS Pin
Internal
Resistance
Connection
PS Pin
Internal
Resistance
Value
[RPS]
(MΩ)
0 V Battery
Charge
Release Condition
of Discharge
Overcurrent
Status
Release Voltage
of Discharge
Overcurrent
Status
Product
S-82N1BAA-I6T1U7SNT-6A4.3104.1102.8003.0000.0390.080−0.0391.0128165301648Active "H"Pull-down5.0InhibitedCharger connectionVDIOV

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Last modified: Jul. 02, 2021

  • 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.