BATTERY PROTECTION IC FOR 1-CELL PACK

The S-8211D Series are protection ICs for single-cell lithium-ion / lithium-polymer rechargeable batteries and include high-accuracy voltage detectors and delay circuits.
These ICs are suitable for protecting single-cell rechargeable lithium-ion / lithium-polymer battery packs from overcharge, overdischarge, and overcurrent.

Features
(1) High-accuracy voltage detection circuit
   • Overcharge detection voltage 3.9 to 4.4 V (5 mV steps)
       Accuracy ±25 mV (+25 °C)
       Accuracy ±30 mV (−5 to +55 °C)
   • Overcharge release voltage 3.8 to 4.4 V*1 Accuracy ±50 mV
   • Overdischarge detection voltage 2.0 to 3.0 V (10 mV steps) Accuracy ±50 mV
   • Overdischarge release voltage 2.0 to 3.4 V*2 Accuracy ±100 mV
   • Discharge overcurrent detection voltage 0.05 to 0.30 V (10 mV steps) Accuracy ±15 mV
   • Load short-circuiting detection voltage 0.5 V (fixed) Accuracy ±200 mV
(2) Detection delay times are generated by an internal circuit (external capacitors are unnecessary).
   Accuracy ±20%
(3) High-withstanding-voltage device is used for charger connection pins (VM pin and CO pin : Absolute maximum rating = 28 V)
(4) 0 V battery charge function available / unavailable are selectable.
(5) Shutdown function yes / no are selectable.
(6) Wide operating temperature range −40 to +85 °C
(7) Low current consumption
   • Operation mode 3.0 µA typ., 5.5 µA max. (+25 °C)
   • Power-down mode 0.2 µA max. (+25 °C)
(8) Small package: SOT-23-5, SNT-6A
(9) Lead-free product

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