PTIC

Multi-cell

Home 9 uPI SEMI 9 Products 9 IC 9 Battery Management 9 PTIC 9 Multi-cell 9 uP8306

uP8306

Secondary Over-Voltage Protection for Battery with Output Control Function

Datasheets PDF

General Description

The uP8306 series is used for secondary protection of lithium-ion rechargeable batteries, and incorporates a highaccuracy voltage detection circuit and a delay circuit. Short circuits between cells accommodate series connection of two to four cells. uP8306 is available in the UUTDFN1.97X2.46-8L and WDFN2x2-8L packages.

Pin Configuration & Typical Application Circuit

UUTDFN1.97×2.46 – 8L

UUTDFN1.97×2.46 – 8L

Feature

  • High-Accuracy Voltage Detection Circuit for Each Cell
    • Overcharge Detection Voltage n (n = 1 to 4)
      4.3V to 4.6V (in 50mV steps)
      Accuracy: 20mV (+25°C)
      Accuracy: 25mV (0°C to +60°C)
    • Overcharge Hysteresis Voltage n (n = 1 to 4)-0.38V ± 150mV.
  • Delay Time for Overcharge Detection Can Be Set by An Internal Circuit (No External Capacitor Required)
    • Optional Overcharge Detection Delay Time:
      4s or 6s
  • Output Control Function via CTL Pin
  • High Withstand Voltage Devices:
    • Absolute Maximum Rating: 32V
    • Wide Operating Voltage Range: 4V to 24V
  • Wide Operating Temperature Range: -40°C to
    +85°C
  • Low Current Consumption
    • At 3.1V for Each Cell: 4.0uA max.(+25°C)
  • CO Pull Up Voltage: VDD – 0.1V
  • Support Test Mode to Shorten Mass Production Time
  • RoHS Compliant and Halogen Free

Application

  • Lithium-Ion Rechargeable Battery Packs (for Secondary Protection)
  • Notebook Computers
  • Portable Instrumentation or Equipment
  • Rechargable Batteries in Serial Application