Production£º

The S-8254A series is a protection IC for 3-serial or 4-serial cell
lithium ion rechargeable batteries and includes a high-accuracy
voltage detector and delay circuit.
The S-8254 series protects both 3-serial or 4-serial cells using the SEL pin for switching.

Features

• High-accuracy voltage detection for each cell
  Overcharge detection voltage n(n=1 to 4): 3.9 V to 4.4 V (50 mV steps) Accuracy ¡À25 mV
  Overcharge release voltage n(n=1 to 4): 3.8 V to 4.4 V Accuracy ¡À50 mV
  Overdischarge detection voltage n(n =1 to 4): 2.0 V to 3.0 V (100 mV steps) Accuracy ¡À80mV
  Overdischarge release voltage n(n=1 to 4): 2.0 V to 3.4 V Accuracy ¡À100 mV
  
• Three-level overcurrent protection
  Overcurrent detection voltage 1: 0.05 V to 0.3 V (50 mV steps) Accuracy ¡À25 mV
  Overcurrent detection voltage 2: 0.5 V Accuracy ¡À100 mV
  Overcurrent detection voltage 3: VC1-1.2 V Accuracy ¡À300 mV
  
• Delay times for overcharge detection, overdischarge detection and overcurrent detection 1 can be set by
  external capacitors. (Delay times for overcurrent detection 2 and 3 are fixed internally.)
  
• Switchable between a 3-serial cell and 4-serial cell using the SEL pin
  
• Charge/discharge operation can be controlled via the control pins.
  
• Withstanding voltage element
  
  Absolute maximum rating: 26 V
  
• Wide operating voltage range: 2 V to 24 V
  
• Wide operating temperature range: -40¡ãC to +85¡ãC
  
• Low current consumption: Operation mode 30 µA max.(+25¡ãC), Power-down mode 0.1 µA max. (+25¡ãC)
  
• Package: 16-Pin TSSOP
  
• Lead-free products
  

Applications