Overview
The LTC4015EUHF#TRPBF, produced by Analog Devices Inc., is a highly integrated multichemistry buck battery charger controller. This device is designed to support various battery chemistries including Li-Ion, Li-Polymer, LiFePO4, and Lead-Acid. It features a synchronous buck converter architecture, ensuring high efficiency during the charging process. The LTC4015 also includes a digital telemetry system, a 14-bit analog-to-digital converter (ADC), and a coulomb counter, making it a comprehensive solution for battery management systems.
Key Specifications
| Parameter | Conditions | Min | Typ | Max | Units |
|---|---|---|---|---|---|
| Operating Junction Temperature Range | -40 | 125 | °C | ||
| Input Voltage Range | 12 | V | |||
| Output Current | 8 | A | |||
| Package Type | 38-Lead (5mm × 7mm) Plastic QFN | ||||
| ADC Resolution | 14-bit | ||||
| Coulomb Counter Error | Battery Charge Current | ±2% | ±3.5% | % | |
| Data Hold Time (tHD(DAT(OUT))) | 0 | 900 | ns |
Key Features
- Supports multichemistry battery charging: Li-Ion, Li-Polymer, LiFePO4, and Lead-Acid.
- High efficiency synchronous buck converter.
- Digital telemetry system monitors VBAT, IBAT, RBAT, NTC ratio, VIN, IIN, VSYSTEM, and die temperature.
- Integrated 14-bit ADC and coulomb counter.
- Wide charging input voltage range.
- Overtemperature protection and current limit features for fault protection.
- Pin-selectable chemistry specific charging and termination algorithms.
Applications
- Battery management systems for various chemistries.
- Portable electronics and power tools.
- Medical devices requiring precise battery charging.
- Industrial battery charging systems.
- Automotive and electric vehicle battery management.
Q & A
- What is the operating junction temperature range of the LTC4015?
The operating junction temperature range is -40°C to 125°C. - What types of batteries does the LTC4015 support?
The LTC4015 supports Li-Ion, Li-Polymer, LiFePO4, and Lead-Acid batteries. - What is the maximum output current of the LTC4015?
The maximum output current is 8A. - What package type is the LTC4015 available in?
The LTC4015 is available in a 38-Lead (5mm × 7mm) Plastic QFN package. - Does the LTC4015 have built-in telemetry and monitoring capabilities?
Yes, it includes a digital telemetry system that monitors various parameters such as VBAT, IBAT, RBAT, NTC ratio, VIN, IIN, VSYSTEM, and die temperature. - What is the resolution of the ADC in the LTC4015?
The ADC resolution is 14-bit. - Does the LTC4015 have overtemperature protection?
Yes, it includes overtemperature protection to safeguard the device during momentary overload conditions. - What is the purpose of the coulomb counter in the LTC4015?
The coulomb counter is used to measure the charge and discharge of the battery, providing accurate state of charge information. - Can the LTC4015 be used in medical devices?
Yes, it is suitable for use in medical devices that require precise battery charging and management. - Is the LTC4015 RoHS compliant?
Yes, the LTC4015EUHF#TRPBF is RoHS compliant.
