Datasheet Linear Technology LT1571EGN-1#PBF

LT1571 Series
Constant-Current/
Constant-Voltage Battery Chargers
with Preset Voltage and Termination Flag
U FEATURES
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■ DESCRIPTIO The LT ®1571 PWM battery charger is a simple, efficient
solution to fast-charge rechargeable batteries including
lithium-ion (Li-Ion), nickel-metal-hydride (NiMH) and
nickel-cadmium (NiCd) using constant-current and/or
constant-voltage control. The internal switch is capable
of delivering 1.5A DC current (2A peak current). The
onboard current sense resistor (0.1Ω) allows simple
charge current programming to within 5% accuracy
using a low cost external resistor. The constant-voltage
output can be selected for 4.1V or 4.2V per cell with 0.6%
accuracy. Fast Charging of Li-Ion, NiMH and NiCd Batteries …