Overview
The LTC4015EUHF#PBF, produced by Analog Devices Inc., is a multichemistry buck battery charger controller integrated with a digital telemetry system. This device is designed to support various battery chemistries including Li-Ion/Polymer, LiFePO4, and Lead-Acid. It features a high-efficiency synchronous buck charger and includes a comprehensive set of monitoring and control functions, making it a versatile solution for advanced battery management systems.
Key Specifications
| Parameter | Conditions | Min | Typ | Max | Units |
|---|---|---|---|---|---|
| Input Voltage Range | 4.5 | 28 | V | ||
| Output Current | 8 | A | |||
| LiFePO4 Charge Voltage Max | DAC setting Code 11111 | 3.8 | V/Cell | ||
| LiFePO4 Charge Voltage Min | DAC setting Code 00000 | 3.4125 | V/Cell | ||
| LiFePO4 Charge Voltage DAC LSB | 12.5 | mV | |||
| Operating Junction Temperature Range | -40 | 125 | °C | ||
| Package Type | 38-Lead QFN (5mm × 7mm) |
Key Features
- High-efficiency synchronous buck battery charger
- Digital telemetry system monitoring VBAT, IBAT, RBAT, NTC ratio (battery temperature), VIN, IIN, VSYSTEM, and die temperature
- Coulomb counter and integrated 14-bit ADC
- Wide charging input voltage range: 4.5V to 28V
- Pin-selectable, chemistry-specific charging and termination algorithms
- Support for Li-Ion/Polymer, LiFePO4, and Lead-Acid battery chemistries
- I2C interface for communication and configuration
Applications
- Battery-powered portable devices
- Electric vehicles and hybrid electric vehicles
- Renewable energy systems with battery backup
- Industrial battery management systems
- Consumer electronics requiring advanced battery management
Q & A
- What is the primary function of the LTC4015EUHF#PBF?
The primary function is to serve as a multichemistry buck battery charger controller with a digital telemetry system. - Which battery chemistries does the LTC4015 support?
The LTC4015 supports Li-Ion/Polymer, LiFePO4, and Lead-Acid battery chemistries. - What is the input voltage range of the LTC4015?
The input voltage range is from 4.5V to 28V. - What is the maximum output current of the LTC4015?
The maximum output current is 8A. - Does the LTC4015 have a built-in Coulomb counter?
Yes, it includes a Coulomb counter and an integrated 14-bit ADC. - How does the LTC4015 monitor battery temperature?
The LTC4015 monitors battery temperature using an NTC (Negative Temperature Coefficient) thermistor connected to the NTC pin. - What communication interface does the LTC4015 use?
The LTC4015 uses an I2C interface for communication and configuration. - What is the operating junction temperature range of the LTC4015?
The operating junction temperature range is from -40°C to 125°C. - What type of package does the LTC4015 come in?
The LTC4015 comes in a 38-Lead QFN (5mm × 7mm) package. - What are some typical applications of the LTC4015?
Typical applications include battery-powered portable devices, electric vehicles, renewable energy systems, industrial battery management systems, and consumer electronics requiring advanced battery management.
