Описание
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.
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
