Power Management ICs

Battery Protection IC for 2-Serial Cell Pack S-8262A Series

DatasheetJul. 29, 2019

The S-8262A Series is a protection IC for 2-serial-cell lithium-ion / lithium polymer rechargeable batteries and includes high-accuracy voltage detectors and delay circuits.
The S-8262A Series has an alarm signal output pin (AO pin) which outputs the alarm detection signal.
The alarm detection signal is output prior to the charge control FET signal by overcharge detection.

Features

High-accuracy voltage detection for each cell
Overcharge detection voltage n (n = 1, 2) : 3.900 V to 4.500 V (5 mV steps)
Accuracy ±20 mV (Ta = +25°C), Accuracy ±25 mV (Ta = -10°C to +60°C) Overcharge release voltage n (n = 1, 2) : 3.800 V to 4.500 V*1
Accuracy ±30 mV
Overdischarge detection voltage n (n = 1, 2) : 2.00 V to 3.00 V (10 mV steps)
Accuracy ±50 mV
Overdischarge release voltage n (n = 1, 2) : 2.00 V to 3.40 V*2
Accuracy ±100 mV
Discharge overcurrent 1 detection voltage : 0.05 V to 0.20 V (10 mV steps)
Accuracy ±10 mV
Discharge overcurrent 2 detection voltage : 0.20 V to 0.40 V (20 mV steps)
Accuracy ±20 mV
Load short-circuiting detection voltage : 0.70 V (fixed)
Accuracy ±100 mV
Charge overcurrent detection voltage : -0.400 V to -0.050 V (25 mV steps)
Accuracy ±20 mV
Detection delay times are generated only by an internal circuit (external capacitors are unnecessary). Accuracy ±20%
High-withstanding-voltage device is used for charger connection pins (VM pin and CO pin: Absolute maximum rating = 28 V)
0 V battery charge function “available” / “unavailable” is selectable.
Wide operating temperature range
Ta = -40°C to +85°C
Low current consumption
During operation: 8.0 µA max. (Ta = +25°C)
During power-down: >0.1 µA max. (Ta = +25°C)
Lead-free (Sn 100%), halogen-free

*1. Overcharge release voltage = Overcharge detection voltage – Overcharge hysteresis voltage
(Overcharge hysteresis voltage n (n = 1, 2) can be selected as 0 V or from a range of 0.10 V to 0.40 V in 25 mV steps.)
*2. Overdischarge release voltage = Overdischarge detection voltage + Overdischarge hysteresis voltage
(Overdischarge hysteresis voltage n (n = 1, 2) can be selected as 0 V or from a range of 0.1 V to 0.7 V in 100 mV steps.)

Applications

  • Lithium-ion rechargeable battery packs
  • Lithium polymer rechargeable battery packs

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 1
Detection
Voltage
[VDIOV1]
(V)
Discharge
Overcurrent 2
Detection
Voltage
[VDIOV2]
(V)
Charge
Overcurrent
Detection
Voltage
[VCIOV]
(V)
0V Battery
Charge
Function
Power-
down
Function
Overcharge
Detection
Delay Time
[tCU]
(s)
Overcharge
Release
Delay Time
[tCL]
(ms)
Overcharge
Alarm
Detection
Delay Time
[tAU]
(ms)
Overcharge
Alarm
Release
Delay Time
[tAL]
(ms)
Overdischarge
Detection
Delay Time
[tDL]
 
(ms)
Discharge
Overcurrent 1
Detection
Delay Time
[tDIOV1]
(ms)
Discharge
Overcurrent 2
Detection
Delay Time
[tDIOV2]
(ms)
Load Short-
circuiting
Detection
Delay Time
[tSHORT]
(µs)
Charge
Overcurrent
Detection
Delay Time
[tCIOV]
(ms)
Product name
S-8262AAA-I8T1USNT-8A4.2254.1002.002.000.100.30−0.100AvailableAvailable8.22812812812882808
S-8262AAB-I8TIUSNT-8A4.2254.1002.002.000.100.30−0.100AvailableAvailable8.2281281286442808

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

Last modified: Sep. 18, 2015

  • 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.