uPI Semiconductor Introduces TCP8250: Ultra-Low Power 1-Cell Battery Protection IC with High-Accuracy Voltage and Current Detection

UPI Semiconductor today announced the launch of the TCP8250, a highly integrated 1-cell lithium-ion/lithium-polymer battery protection integrated circuit (IC) designed to provide precise over-charge, over-discharge, and over-current protection with exceptionally low quiescent power consumption. Optimized for compact and portable devices, the TCP8250 enhances battery safety, extends cell lifetime, and supports reliable operation in both consumer and industrial applications.

Equipped with high-accuracy detection circuits, ultra-low leakage design, and optional 0V charging capability, the TCP8250 is ideal for next-generation wearable devices, true wireless earphones, portable IoT sensors, and battery-powered accessories that require stringent safety and extended standby performance.

Key Features:

High-Precision Voltage Detection

  • Over-charge Detection Voltage: 4.400 V to 4.900 V (5 mV steps)
    • Accuracy: ±15 mV
  • Over-charge Release Voltage: 4.200 V to 4.900 V
    • Accuracy: ±50 mV
  • Over-discharge Detection Voltage: 2.000 V to 3.000 V (10 mV steps)
    • Accuracy: ±50 mV
  • Over-discharge Release Voltage: 2.000 V to 3.400 V
    • Accuracy: ±75 mV

Comprehensive Current Protection

  • Discharge Over-current 1: 5 mV to 100 mV (0.5 mV steps), ±1.0 mV accuracy
  • Discharge Over-current 2: 10 mV to 100 mV (1 mV steps), ±3 mV accuracy
  • Short-Circuit Detection: 20 mV to 100 mV (1 mV steps), ±5 mV accuracy
  • Charge Over-current Detection: −100 mV to −5 mV (0.5 mV steps), ±1.0 mV accuracy

Ultra-Low Power Consumption

  • Ultra-low quiescent current protects battery life during long storage periods
  • Ultra-low power-down current for minimal drain during shutdown states

Integrated Internal Delay Timing

  • No external RC components required
  • Simplifies BOM and enhances detection stabilit

Optional 0V Battery Charging

  • Allows safe recovery and charging of deeply discharged batteries
  • Ideal for wearables and devices prone to long-term storage

Compact Package Options

  • XDFN 1.4 × 1.4-6L
  • UDFN 1.4 × 1.8-6L
  • RoHS compliant and halogen-free

Target Applications

The TCP8250 is designed for high-volume and safety-critical consumer and IoT devices, including:

  • True Wireless Stereo (TWS) earbuds & charging cases
  • Wearable devices (smart bands, smartwatches)
  • Portable IoT sensors and beacons
  • Single-cell rechargeable battery packs
  • Small battery-powered accessories
  • Mobile medical and fitness devices

Its ultra-low current consumption and compact packaging make it an excellent fit for next-generation miniaturized electronics.

Package & Availability

  • Offered in XDFN 1.4×1.4-6L and UDFN 1.4×1.8-6L packages
  • Samples available now
  • Production schedule available via uPI sales contacts
  • Fully compliant with RoHS and eco-friendly requirements

TCP8250 reflects uPI’s continued focus on delivering high-accuracy, low-power battery safety solutions for the fast-growing wearable and IoT markets. Its precise detection thresholds, versatile protection functions, and ultra-low quiescent current make it the ideal choice for compact single-cell battery applications.