bq771807 - Texas Instruments

bq771807 Overvoltage Protection

• 2-, 3-, 4-, and 5-series cell overvoltage protection • Internal delay timer • Fixed OVP threshold • High-accuracy overvoltage protection: ± 10 mV • Low power consumption ICC ≈ 1 µA (VCELL(ALL) < VPROTECT) • Low leakage current per cell input < 100 nA • Functional Safety-Capable – Documentation available to aid functional safety system design • Package foo.

Features

3 Description
• 2-, 3-, 4-, and 5-series cell overvoltage protection
• Internal delay timer
• Fixed OVP threshold
• High-accuracy overvoltage protection: ± 10 mV
• Low power consumption ICC ≈ 1 µA (VCELL(ALL) < VPROTECT)
• Low leakage current per cell input < 100 nA
• Functional Safety-Capable
  – Documentation available to aid functional safety system design
• Package footprint options:
  – Small 8-pin QFN (3.00 mm × 4.00 mm)
  – Leaded 8-pin MSOP (3.00 mm × 5.00 mm, including leads) 2 Applications
• Protection for li-ion battery packs used in:
  – Handheld garden tools
  – Handheld power tools
  – Cor.