Power Management ICs

Battery Protection IC with Charge-Discharge Control Function for 1-Cell Pack S-82H1A Series

DatasheetJul. 29, 2019

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The S-82H1A 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.
By using an external overcurrent detection resistor, the S-82H1A Series realizes high-accuracy overcurrent protection with less effect from temperature change.
The S-82H1A Series also 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 : 3.500 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 ±75 mV
Discharge overcurrent detection voltage 1 : 0.003 V to 0.100 V (0.5 mV step) Accuracy ±1.5 mV
Discharge overcurrent detection voltage 2 : 0.010 V to 0.100 V (1 mV step) Accuracy ±3 mV
Load short-circuiting detection voltage : 0.020 V to 0.100 V (1 mV step) Accuracy ±5 mV
Charge overcurrent detection voltage : −0.100 V to −0.003 V (0.5 mV step) Accuracy ±1.5 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 MΩ to 10 MΩ (1 MΩ step)
Discharge overcurrent control function
Release condition of discharge overcurrent status : Load disconnection
Release voltage of discharge overcurrent status : VRIOV = VDD × 0.8
Discharge overcurrent status reset function by CTL pin is selectable
Available, unavailable
0 V battery charge function is selectable
Available, unavailable
Power-down function is selectable
Available, unavailable
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 : 0.5 μA 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)
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 Shortcircuiting
Detection
Delay Time
[tSHORT]
(μs)
Charge
Overcurrent
Detection
Delay Time
[tCIOV]
(ms)
Chargedischarge
Inhibition
Delay Time
[tCTL]
(ms)
Control LogicInternal Resistance
Connection
Internal
Resistance Value
[RCTL]
(MΩ)
CTL Pin
Voltage "H"
[VCTLH]
CTL Pin
Voltage "L"
[VCTLL]
Discharge Overcurrent
Status Reset Function
by CTL Pin
0 V Battery Charge
Function
Power-down FunctionDischarge Overcurrent
Detection Voltage 1
[VDIOV1]
Discharge Overcurrent
Detection Voltage 2
[VDIOV2]
Load Short-circuiting
Detection Voltage
[VSHORT]
Charge Overcurrent
Detection Voltage
[VCIOV]
Product name
S-82H1AAH-A8T2UHSNT-8(1616)4.5204.3202.3002.5001.064642806448Active "H"Pull-down5VSS + 0.65 VVSS + 0.60 VUnavailableUnavailableUnavailable0.01500.046−0.0150
S-82H1AAI-A8T2UHSNT-8(1616)4.5404.3402.3002.5001.0641282806448Active "H"Pull-down5VSS + 0.65 VVSS + 0.60 VUnavailableUnavailableUnavailable0.01400.050−0.0150
S-82H1AAJ-A8T2UHSNT-8(1616)4.5204.3202.1002.3001.0645122801648Active "H"Pull-down5VSS + 0.65 VVSS + 0.60 VUnavailableUnavailableUnavailable0.02100.100−0.0240

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

Last modified: Jun. 18, 2019

  • 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.