Automotive ICs

For Automotive Battery Protection IC For 3-Serial To 5-Serial Cell Pack (Secondary Protection) S-8235A Series

The S-8235A Series, for automotive use, is utilized for secondary protection of lithium-ion rechargeable batteries, and incorporates high-accuracy voltage detection circuits and delay circuits. Short-circuiting between cells makes it possible for serial connection of 3-cell to 5-cell. By connecting in cascade, the S-8235A Series protects 6-serial or more cells lithium-ion rechargeable battery pack.
The S-8235A Series performs a self-test operation to confirm overcharge detection.

Caution : This product can be used in vehicle equipment and in-vehicle equipment. Before using the product in the purpose, contact to SII is indispensable.

Features

High-accuracy voltage detection circuit for each cell
Overcharge detection voltage n (n = 1 to 5)
 3.60 V to 4.50 V (50 mV step)
 Accuracy ±20 mV (Ta = +25°C)
 Accuracy ±30 mV (Ta = −5°C to +55°C)
Overcharge hysteresis voltage n (n = 1 to 5)
 0.0 mV to −550 mV (50 mV step)
 −300 mV to −550 mV Accuracy ±20%
 −100 mV to −250 mV Accuracy ±50 mV
 0.0 mV to −50 mV Accuracy ±25 mV
Self-test operation to confirm overcharge detection is available.
Cascade connection is available.
Delay times for overcharge detection can be set by an internal circuit only (External capacitors are unnecessary).
High-withstand voltage
Absolute maximum rating 26 V
Wide operation voltage range
6 V to 24 V
Wide operation temperature range
Ta = −40°C to +85°C
Low current consumption
At VCUn − 1.0 V for each cell : 10 μA max. (Ta = +25°C)
At 2.3 V for each cell : 8 μA max. (Ta = +25°C)
Lead-free (Sn 100%), halogen-free
AEC-Q100 qualified

Applications

  • Lithium-ion rechargeable battery pack (for secondary protection)

Parts List

Product NamePackageOvercharge
Detection Voltage
[VCU]
(V)
Overcharge
Hysteresis Voltage
[VHC]
(V)
Overcharge
Detection
Delay time
[tCU]
(s)
Product Name
S-8235AAA-TCT1U16-Pin TSSOP4.050-0.0501.0
S-8235AAB-TCT1U16-Pin TSSOP4.050-0.2501.0
S-8235AAC-TCT1U16-Pin TSSOP4.250-0.2502.0
S-8235AAD-TCT1U16-Pin TSSOP4.350-0.1502.0
S-8235AAE-TCT1U16-Pin TSSOP4.350-0.1501.0
S-8235AAG-TCT1U16-Pin TSSOP4.550-0.2501.0
S-8235AAH-TCT1U16-Pin TSSOP3.825-0.2504.0
S-8235AAI-TCT1U16-Pin TSSOP4.450-0.1501.0
S-8235AAJ-TCT1U16-Pin TSSOP4.500-0.3500.512

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

Last modified: May. 31, 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.