The LT3652EDD#PBF is a Power Tracking Battery Charger for solar power 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 LT3652 is powered by a solar panel, the input regulation loop is used to maintain the panel at peak output power. The LT3652 can be configured to terminate charging when charge current falls below 1/10 of the programmed maximum (C/10). Once charging is terminated, the LT3652 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 float voltage.
- Input supply voltage regulation loop for peak power tracking in (MPPT) solar applications
- Wide input voltage range (4.95 to 32V, 40V absolute maximum)
- Up to 2A programmable charge current
- User selectable termination (C/10 or on-board termination timer)
- Resistor programmable float voltage up to 14.4V
- 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
替代能源, 便携式器材, 车用
(EN)
