The LT3652EMSE#PBF is a complete monolithic step-down Battery Charger IC, operates over a 4.95 to 32V input voltage range. It 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 14.4V can be programmed with a resistor divider. It 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 LT3652EMSE#PBF is powered by a solar panel, the input regulation loop is used to maintain the panel at peak output power.
- Input Supply Voltage Regulation Loop for Peak Power Tracking in (MPPT) Solar Applications
- 4.95V to 32V (40V Abs Maximum) Wide Input Voltage Range
- Programmable Charge Rate up to 2A
- User Selectable Termination, C/10 or On-Board Termination Timer
- Resistor programmable float voltage up to 14.4V accommodate Li-ion/Polymer LiFePO4 & SLA chemistries
- No VIN Blocking 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
- Lead-free Finish
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