LT3652HV

RECOMMENDED FOR NEW DESIGNS

Power Tracking 2A Battery Charger

Analog Devices LT3652HV Product Info

10 February 2026 5

Features

Input Supply Voltage Regulation Loop for Peak Power Tracking in (MPPT) Solar Applications
Wide Input Voltage Range: 4.95V to 34V (40V Abs Max)
Programmable Charge Rate Up to 2A
User Selectable Termination: C/10 or On-Board Termination Timer
Resistor Programmable Float Voltage Up to 18V Accommodates 4-Cell Li-Ion/Polymer, 5-Cell LiFePO₄, Lead-Acid Chemistries

Parallelable for Higher Output Current
1MHz Fixed Frequency
0.5% Float Voltage Reference Accuracy
5% Charge Current Accuracy
2.5% C/10 Detection Accuracy
Binary-Coded Open-Collector Status Pins
Thermally Enhanced 3mm × 3mm DFN and MSE Packages

Part details & applications

The LT3652HV is a complete monolithic step-down battery charger that operates over a 4.95V to 34V input range. The LT3652HV provides a constant-current/constant-voltage charge characteristic, with maximum charge current externally programmable up to 2A. The charger employs a 3.3V float voltage feedback reference, so any desired battery float voltage up to 18V can be programmed with a resistor divider.

The LT3652HV employs an input voltage regulation loop, which reduces charge current if the input voltage falls below a programmed level, set with a resistor divider. When the LT3652HV is powered by a solar panel, the input regulation loop is used to maintain the panel at peak output power.

The LT3652HV can be configured to terminate charging when charge current falls below 1/10 of the programmed maximum (C/10). Once charging is terminated, the LT3652HV enters a low-current (85μA) standby mode. An auto-recharge feature starts a new charging cycle if the battery voltage falls 2.5% below the programmed fl oat voltage. The LT3652HV also contains a programmable safety timer, used to terminate charging after a desired time is reached. This allows top-off charging at currents less than C/10.


	Vin Max	Vfloat Max	Features
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