The LTC4013IUFD#PBF is a high voltage battery charger that is well suited for charging a wide range of lead-acid batteries including both vented and sealed types. It supports bulk, float, absorption and equalization charging. The LTC4013IUFD#PBF also supports termination options for Li-Ion/Polymer and LiFePO4 batteries.
Charging is performed with a high efficiency synchronous buck (step-down) converter that uses external N-channel MOSFETs. Switching frequency is resistor programmable or can be synchronized to an external clock. Charge current is programmed with an external sense resistor.
The LTC4013IUFD#PBF also includes maximum power point tracking input-voltage regulation for limited power sources such as solar panels. Other features include user-programmable absorption and equalization times, temperature-compensated charge voltage and an external N-channel MOSFET isolation control circuit.
Feature
- Wide Input Voltage Range: 4.5V to 60V
- Wide Battery Voltage Range: 2.4V to 60V
- Built-In Charge Algorithms for Lead-Acid and Li-Ion
- ±0.5% Float Voltage Accuracy
- ±5% Charge Current Accuracy
- Maximum Power Point Tracking Input Control
- NTC Temperature Compensated Float Voltage
- Two Open Drain Status Pins
- Thermally Enhanced 28-Lead 4mm × 5mm QFN Package
Applications
- Battery Backup for Lighting, UPS Systems, Security Cameras, Computer Control Panels
- Portable Medical Equipment
- Solar-Powered Systems
- Industrial Battery Charging
