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LTC4020 - 55V Buck-Boost Multi-Chemistry Battery Charger

Features

Wide Voltage Range: 4.5V to 55V Input, Up to 55V

Output (60V Absolute Maximums)

Synchronous Buck-Boost DC/DC Controller

Li-Ion and Lead-Acid Charge Algorithms

±0.5% Float Voltage Accuracy

±5% Charge Current Accuracy

Instant-On for Heavily Discharged Batteries

Ideal Diode Controller Provides Low Loss PowerPath When Input Power is Limited

Input Voltage Regulation for High Impedance Input Supplies and Solar Panel Peak Power Operation

Onboard Timer for Protection and Termination

Bad Battery Detection with Auto-Reset

NTC Input for Temperature Qualified Charging

Binary Coded Open-Collector Status Pins

Low Profile (0.75mm) 38-Pin 5mm × 7mm QFN Package

Typical Application 汽车电子 工业控制