BQ77904, BQ77905
SLUSCM3K – JUNE 2016 – REVISED JULY 2020
BQ77904, BQ77905 3-Series to 20-Series Ultra Low-Power
Voltage, Current, Temperature, and Open-Wire Stackable Lithium-Ion Battery Protector
1 Features
• NORMAL mode: 6 µA (BQ77904 and BQ77905) • Full suite of
voltage, current, and temperature
protections • Scalable cell count from 3 series to 20 series or
more •
Voltage protection (accuracy ±10 mV)
– Over
voltage: 3 V to 4.
575 V – Under
voltage: 1.
2 V to 3 V • Open cell and open-wire detection (OW) • Current Protection
– Overcurrent discharge 1: –10 mV to –85 mV – Overcurrent discharge 2: –20 mV to +170 mV – Short circuit discharge: –40 mV to +340 mV – Accuracy ±20% for ≤ 20 mV, ±30% f...