Power Management ICs

Battery Protection IC with Temperature Protection Function for 1-Cell Pack S-82D1A Series

DatasheetJul. 27, 2020

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The S-82D1A Series is a protection IC for lithium-ion / lithium polymer rechargeable batteries, which includes temperature protection circuits, high-accuracy voltage detection circuits, and delay circuits.
Temperature protection is possible by connecting an NTC thermistor to the dedicated connection pin.
It is suitable for protecting 1-cell lithium-ion / lithium polymer rechargeable battery packs from overcharge, overdischarge, and overcurrent.

Features

High-accuracy temperature protection circuit by an external NTC thermistor
High temperature charge-discharge inhibition temperature: +40°C to +85°C (1°C step) Accuracy ±3°C*1
High temperature charge inhibition temperature: +40°C to +85°C (1°C step) Accuracy ±3°C*1
Low temperature charge inhibition temperature: -40°C to +10°C (1°C step) Accuracy ±3°C*1
Low temperature charge-discharge inhibition temperature: -40°C to +10°C (1°C step) Accuracy ±3°C*1
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*2 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*3 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: Active “H”, active “L”
CTL pin internal resistance: Pull-up, pull-down
CTL pin internal resistance value: 1 MΩ to 5 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 typ.
Discharge overcurrent status reset function by CTL pin
Available, unavailable
0 V battery charge function is selectable
Enabled, inhibited
Power-down function
Available, unavailable
High-withstand voltage
VM pin and CO pin: Absolute maximum rating 28.0 V
Wide operation temperature range
Ta = −40°C to +85°C
Low current consumption
During operation: 2.5 μA typ., 5.0 μA max. (Ta = +25°C)
During power-down: 100 nA max. (Ta = +25°C)
During overdischarge: 0.5 μA max. (Ta = +25°C)
Lead-free (Sn 100%), halogen-free

*1. Temperature detection accuracy varies with NTC thermistor specifications.
When an NTC thermistor listed in Table 6 of the datasheet is connected, the detection temperature and accuracy can be achieved.

*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 0.4 V in 50 mV step.)

*3. 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]
(s)
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)
CTL Pin
Control
Logic
CTL Pin
Internal
Resistance
Connection
CTL Pin
Internal
Resistance
Value
[RCTL]
(MΩ)
CTL Pin
Pin
Voltage
"H"
[VCTLH]
(V)
CTL Pin
Pin
Voltage
"L"
[VCTLL]
(V)
0 V
Battery
Charge
Power-
down
Function
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)
Product Name
S-82D1AAA-A8T2U7HSNT-8(1616)4.4754.2752.5002.9001.0640.032-2801648Active "H"Pull-down5VDD - 0.9VSS + 0.6UnavailableUnavailable0.0150-0.040−0.0150
S-82D1AAB-A8T2U7HSNT-8(1616)4.4254.2252.3002.5001.0643.75-2801648Active "H"Pull-down5VDD - 0.9VSS + 0.6AvailableUnavailable0.01050.0150.030−0.0105
S-82D1AAD-A8T2U7HSNT-8(1616)4.2804.0803.0003.4001.0640.032162801648Active "H" Pull-down5VDD - 0.9VSS + 0.6AvailableAvailable0.0300-0.050−0.0300
S-82D1AAE-A8T2U7HSNT-8(1616)4.5004.3002.5002.9001.0640.032-2801648Active "H"Pull-down5VDD - 0.9VSS + 0.6UnavailableUnavailable0.0270-0.054−0.0210

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

Last modified: Jul. 21, 2020

  • 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.