BQ2031
Lead-Acid Fast-Charge IC
Features
Conforms to battery manufacturers' charge recommendations for
cyclic and float charge
Pin-selectable charge algorithms
Two-Step Voltage with
temperature-compensated
constant-voltage maintenance
Two-Step Current with
constant-rate pulsed current
maintenance
Pulsed Current: hysteretic,
on-demand pulsed current
Pin-selectable charge termination
by maximum voltage,?
2V, minimum current, and maximum
time
Pre-charge qualification detects
shorted, opened, or damaged cells
and conditions battery
Charging continuously qualified by
temperature and voltage limits
Internal temperature-compensated voltage reference
Pulse-width modulation control
Ideal for high-efficiency
switch-mode power conversion
Configurable for linear or
gated current use
Direct LED control outputs display charge status and fault conditions
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