LT3652HV Series

Power Tracking 2A Battery Charger for Solar Power

Catalog

Power Tracking 2A Battery Charger for Solar Power

Part	Battery Pack Voltage	Voltage - Supply (Max) [Max]	Battery Chemistry	Charge Current - Max [Max]	Current - Charging	Mounting Type	Supplier Device Package	Operating Temperature [Min]	Operating Temperature [Max]	Package / Case	Package / Case	Programmable Features	Number of Cells [Max]	Number of Cells [Min]
Analog Devices LT3652EMSE#PBF	14.4 V	32 V	Multi-Chemistry	2 A	Constant - Programmable	Surface Mount	12-MSOP-EP	-40 °C	125 ¯C	12-TSSOP Exposed Pad	0.118 in 3 mm	Current Timer
Analog Devices LT3652IDD#TRPBF	14.4 V	32 V	Multi-Chemistry	2 A	Constant - Programmable	Surface Mount	12-DFN (3x3)	-40 °C	125 ¯C	12-WFDFN Exposed Pad		Current Timer
Analog Devices LT3652HVEDD#TRPBF	18 V	34 V	Multi-Chemistry	2 A	Constant - Programmable	Surface Mount	12-DFN (3x3)	-40 °C	125 ¯C	12-WFDFN Exposed Pad		Current Timer	5	4
Analog Devices LT3652HVIDD#PBF	18 V	34 V	Multi-Chemistry	2 A	Constant - Programmable	Surface Mount	12-DFN (3x3)	-40 °C	125 ¯C	12-WFDFN Exposed Pad		Current Timer	5	4
Analog Devices LT3652HVIMSE#PBF	18 V	34 V	Multi-Chemistry	2 A	Constant - Programmable	Surface Mount	12-MSOP-EP	-40 °C	125 ¯C	12-TSSOP Exposed Pad	0.118 in 3 mm	Current Timer	5	4
Analog Devices LT3652HVIDD#TRPBF	18 V	34 V	Multi-Chemistry	2 A	Constant - Programmable	Surface Mount	12-DFN (3x3)	-40 °C	125 ¯C	12-WFDFN Exposed Pad		Current Timer	5	4

Catalog

Power Tracking 2A Battery Charger for Solar Power

Key Features

• Input Supply Voltage Regulation Loop for Peak Power Tracking in (MPPT) Solar Applications

• Wide Input Voltage Range: 4.95V to 32V (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 14.4V Accommodates Li-Ion/Polymer, LiFePO4, SLA Chemistries

• No VINBlocking Diode Required for Battery Voltages ≤ 4.2V

• 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 12-Lead 3mm × 3mm DFN and MSE Packages

Description

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 MaxVfloat MaxFeaturesLT365232V14.4Vinternal reverse blockingVbat<4.2VLT3652HV34V18VApplicationsSolar Powered ApplicationsRemote Monitoring StationsPortable Handheld Instruments12V to 24V Automotive SystemsBattery Charging from Current Limited Adapter