Part#: LTC4020IUHF#PBF
Part Category: Other Semiconductors

Manufacturer: Linear Technology Corporation

Description: Battery Charge Controller, CMOS, PQCC38

The LTC®4020 is a high voltage power manager providing PowerPath™ instant-on operation and high efficiency
battery charging over a wide voltage range. An onboard
buck-boost DC/DC controller operates with battery and/or
system voltages above, below, or equal to the input voltage.
The LTC4020 seamlessly manages power distribution
between battery and converter outputs in response to load
variations, battery charge requirements and input power
supply limitations.
The LTC4020 battery charger can provide a constant-current/
constant-voltage charge algorithm (CC/CV), constantcurrent charging (CC), or charging with an optimized 4-step,
3-stage lead-acid battery charge profile. Maximum converter
and battery charge currents are resistor programmable.
The IC’s instant-on operation ensures system load power
even with a fully discharged battery. Additional safety
features include preconditioning for heavily discharged
batteries and an integrated timer for termination and
protection.