Features and Benefits
- Wide Input Voltage Range: 4.5V to 60V
- Wide Battery Voltage Range: 0V 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
The LTC4013 is a high voltage battery charger controller that supports float, absorption and equalization lead-acid and constant-current/constant-voltage Li-Ion charging algorithms. It is particularly well suited for charging a wide range of lead-acid batteries, including both vented and sealed type. The LTC4013 also supports Li-Ion/Polymer, LiFePO4, NiMH, NiCd and other battery types.
Charging is performed with a high efficiency synchronous buck (step-down) converter that uses external N-channel MOSFETs. Switching frequency is programmed with a resistor or synchronized with an external clock for use in multiphase applications. Charge current is set with an external sense resistor.
The device includes maximum power point tracking input voltage regulation for limited power inputs such as solar panels. Other features include user-programmable absorption and equalization times, temperature-adjusted regulation voltages and an external NFET isolation diode.
- Battery Backup for Lighting, UPS Systems, Security Cameras, Computer Control Panels
- Portable Medical Equipment
- Solar-Powered Systems
- Industrial Battery Charging
Product Lifecycle Production
At least one model within this product family is in production and available for purchase. The product is appropriate for new designs but newer alternatives may exist.
Evaluation Kits (1)
Demonstration circuit 2374A is a multi-chemistry battery charger with optional maximum power point tracking (MPPT) featuring the LTC4013. The LTC4013 has configurable 3 stage and 4 stage lead acid and Li-Ion battery algorithms in addition to 2 stage CC/CV charge cycles.
The DC2374A is set up to operate from a 21.5V to 35V supply or from a solar panel and charges a six cell lead acid battery at 5A. It also can be configured to operate down to 5V. There are optional input and output capacitors plus large inductor pads and parallel top and bottom FET pads to allow high power charging. The operating frequency, charge voltage, low battery (LB) voltage setting and timing are configurable with external resistors and a capacitor. The different charging algorithms are jumper-selectable, set by two tri-state mode pins and the TIMER pin.
ADI has always placed the highest emphasis on delivering products that meet the maximum levels of quality and reliability. We achieve this by incorporating quality and reliability checks in every scope of product and process design, and in the manufacturing process as well. "Zero defects" for shipped products is always our goal.
Sample & Buy
The USA list pricing shown is for BUDGETARY USE ONLY, shown in United States dollars (FOB USA per unit for the stated volume), and is subject to change. International prices may differ due to local duties, taxes, fees and exchange rates. For volume-specific price or delivery quotes, please contact your local Analog Devices, Inc. sales office or authorized distributor. Pricing displayed for Evaluation Boards and Kits is based on 1-piece pricing.