LT3652HV

RECOMMENDED FOR NEW DESIGNS

Power Tracking 2A Battery Charger

Part Models: 8
1ku List Price: Starting From $4.08

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Part Details

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

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
LT3652	32V	14.4V	internal reverse blocking Vbat<4.2V
LT3652HV	34V	18V

Applications

Solar Powered Applications
Remote Monitoring Stations
Portable Handheld Instruments
12V to 24V Automotive Systems
Battery Charging from Current Limited Adapter

Part Models: 8
1ku List Price: Starting From $4.08

Documentation

ADI has always placed the highest emphasis on delivering products that meet the maximum levels of quality and reliability. We achieve this by incorporating quality and reliability checks in every scope of product and process design, and in the manufacturing process as well. "Zero defects" for shipped products is always our goal. View our quality and reliability program and certifications for more information.

Part Model	Pin/Package Drawing	Documentation	CAD Symbols, Footprints, and 3D Models
LT3652HVEDD#PBF	12-Lead DFN (3mm x 3mm w/ EP)	Material Declaration Reliablity Data	Ultra Librarian SamacSys
LT3652HVEDD#TRPBF	12-Lead DFN (3mm x 3mm w/ EP)	Material Declaration Reliablity Data	Ultra Librarian SamacSys
LT3652HVEMSE#PBF	12-Lead MSOP w/ EP	Material Declaration Reliablity Data	Ultra Librarian SamacSys
LT3652HVEMSE#TRPBF	12-Lead MSOP w/ EP	Material Declaration Reliablity Data	Ultra Librarian SamacSys
LT3652HVIDD#PBF	12-Lead DFN (3mm x 3mm w/ EP)	Material Declaration Reliablity Data	Ultra Librarian SamacSys
LT3652HVIDD#TRPBF	12-Lead DFN (3mm x 3mm w/ EP)	Material Declaration Reliablity Data	Ultra Librarian SamacSys
LT3652HVIMSE#PBF	12-Lead MSOP w/ EP	Material Declaration Reliablity Data	Ultra Librarian SamacSys
LT3652HVIMSE#TRPBF	12-Lead MSOP w/ EP	Material Declaration Reliablity Data	Ultra Librarian SamacSys

Part Models	Product Lifecycle	PCN

Feb 14, 2025 - 25_0016 Bond Wire Change from Gold to Copper Wire (Notification Only)
		PCN25_0016_Form Material_Report Qualification Results Summary
LT3652HVEDD#PBF	PRODUCTION
LT3652HVEDD#TRPBF	PRODUCTION
LT3652HVIMSE#PBF	PRODUCTION
LT3652HVIMSE#TRPBF	PRODUCTION
Apr 9, 2025 - 25_0016 Bond Wire Change from Gold to Copper Wire (Notification Only)
		PCN25_0016_Form Material_Report Qualification Results Summary
LT3652HVEMSE#PBF	PRODUCTION
LT3652HVEMSE#TRPBF	PRODUCTION
LT3652HVIDD#PBF	PRODUCTION
LT3652HVIDD#TRPBF	PRODUCTION
Jun 5, 2024 - 24_0003 Epoxy Change from Henkel 8290 to 8290A for MSOP Package (2)
		PCN24_0003_Form Material_Report Qualification Results Summary Delta Qualification Matrix
LT3652HVEMSE#PBF	PRODUCTION
LT3652HVEMSE#TRPBF	PRODUCTION
Feb 4, 2020 - 20_0129 Laser Mark Conversion for 12-Lead MSOP Packages Assembled in ADPG and UTAC
		PCN20_0129_Form Material_Report
LT3652HVEMSE#PBF	PRODUCTION
LT3652HVEMSE#TRPBF	PRODUCTION
LT3652HVIMSE#PBF	PRODUCTION
LT3652HVIMSE#TRPBF	PRODUCTION
Oct 11, 2022 - 22_0244 Epoxy Change from Henkel 8290 to 8290A for MSOP Package
		PCN22_0244_Form Material_Report Qualification Results Summary Delta Qualification Matrix
LT3652HVIMSE#PBF	PRODUCTION
LT3652HVIMSE#TRPBF	PRODUCTION
Apr 18, 2022 - 22_0050 UTAC Thai Limited (UTL) as Alternate Assembly Site for MSOP Packages / Devices
		PCN22_0050_Form Material_Report Qualification Results Summary Delta Qualification Matrix
LT3652HVIMSE#PBF	PRODUCTION
LT3652HVIMSE#TRPBF	PRODUCTION

This is the most up-to-date revision of the Data Sheet.

Software Resources

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Hardware Ecosystem

Parts	Product Life Cycle	Description
Battery Charger ICs 1
LTM8062	RECOMMENDED FOR NEW DESIGNS	32V_IN, 2A μModule (Power Module) Power Tracking Battery Charger
Battery Monitors & Fuel Gauges 1
LTC2943	NOT RECOMMENDED FOR NEW DESIGNS	Multicell Battery Gas Gauge with Temperature, Voltage and Current Measurement
Circuit Monitors 2
LTC2960	RECOMMENDED FOR NEW DESIGNS	36V Nano-Current Two-Input Voltage Monitor
LT2940	PRODUCTION	Power and Current Monitor

Protection Switches & Controllers 3
LTC4359	RECOMMENDED FOR NEW DESIGNS	Ideal Diode Controller with Reverse Input Protection
LTC4417	RECOMMENDED FOR NEW DESIGNS	Prioritized PowerPath^™ Controller
LTC2956	RECOMMENDED FOR NEW DESIGNS	Wake-Up Timer with Pushbutton Control

Tools & Simulations

LTspice 1

LT3652HV Demo Circuit - Wall Adapter to 5-Cell LiFePO4 Battery Charger (19-32V to 18Vfloat @ 1.5A)

Models for the following parts are available in LTspice:

LT3652
LT3652HV

LTspice® is a powerful, fast and free simulation software, schematic capture and waveform viewer with enhancements and models for improving the simulation of analog circuits.

Evaluation Kits

650mA Wireless Battery Charger Demonstration Kit

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Product Details

DC2554A-KIT is a kit of the DC2556A transmitter, featuring LTC4125, the DC2555A-A/DC2555A-B receiver, featuring LT3652HV. The DC2555A-A/DC2555A-B receiver can charge a single Li-Ion battery at up to 650mA with an air gap of 3.0mm to 12.0mm between the transmit and receive coils. The DC2556A transmitter supports Optimum Power Search and Foreign Object Detection features via LTC4125.