Overview
The LT3652IMSE#TRPBF, produced by Analog Devices Inc., is a complete monolithic step-down battery charger. This device is designed to operate over a wide input voltage range of 4.95V to 32V, making it versatile for various power management applications. The LT3652 is particularly suited for solar power and other energy harvesting systems due to its ability to efficiently manage and regulate power from variable input sources.
Key Specifications
| Parameter | Min | Typ | Max | Units |
|---|---|---|---|---|
| VIN (Input Voltage) | 4.95 | - | 32 | V |
| VIN_REG, SHDN, CHRG, FAULT | - | - | VIN + 0.5V, 40V | V |
| SW (Switch Voltage) | - | - | 40V | V |
| SW-VIN | - | - | 4.5V | V |
| BOOST | - | - | SW+10V, 50V | V |
| BAT, SENSE | - | - | 15V | V |
| Operating Frequency (fO) | - | 1 MHz | - | Hz |
| DC Duty Cycle Range | 15% | - | 90% | % |
| Full Charge Cycle Timeout (tTIMER) | - | 3 hr | - | hr |
| Precondition Timeout | - | 22.5 min | - | min |
Key Features
- Wide input voltage range: 4.95V to 32V
- High efficiency step-down battery charger
- Programmable output battery float voltage using a resistor divider
- Battery temperature monitoring via NTC thermistor input
- Full charge cycle timeout and precondition timeout for battery protection
- Operating frequency of 1 MHz with a DC duty cycle range of 15% to 90%
- Compact MSOP-12-EP package with exposed pad for thermal management
Applications
- Solar power systems and other energy harvesting applications
- Battery management systems for industrial and consumer electronics
- Power management in automotive and aerospace systems
- Efficient charging solutions for lithium-ion and other battery types
Q & A
- What is the input voltage range of the LT3652IMSE#TRPBF? The input voltage range is from 4.95V to 32V.
- How is the output battery float voltage programmed? The output battery float voltage is programmed using a resistor divider connected to the VFB pin.
- What is the operating frequency of the LT3652IMSE#TRPBF? The operating frequency is 1 MHz.
- Does the LT3652IMSE#TRPBF support battery temperature monitoring? Yes, it supports battery temperature monitoring via an NTC thermistor input.
- What is the typical package type for the LT3652IMSE#TRPBF? The typical package type is MSOP-12-EP with an exposed pad for thermal management.
- What are the full charge cycle and precondition timeouts for the LT3652IMSE#TRPBF? The full charge cycle timeout is 3 hours, and the precondition timeout is 22.5 minutes.
- Can the LT3652IMSE#TRPBF be used in solar power systems? Yes, it is particularly suited for solar power and other energy harvesting systems.
- What is the DC duty cycle range of the LT3652IMSE#TRPBF? The DC duty cycle range is from 15% to 90%.
- How does the LT3652IMSE#TRPBF manage thermal issues? It has an exposed pad that must be soldered to the PCB for thermal management.
- What types of batteries can the LT3652IMSE#TRPBF charge? It can charge lithium-ion and other battery types efficiently.
