LTC4085-3 (4)
The LTC4085-3 is available from Analog Devices at Xecor. Designed for USB power management and Li-Ion/Polymer battery charging in portable devices, the LTC4085-3 offers seamless transition between input power sources, load-dependent charging, and a 3.95V float voltage for improved battery lifespan and safety. Available in a compact 14-Lead DFN package, it is ideal for portable USB devices and battery-powered applications. Whether used in consumer electronics, medical devices, or industrial equipment, this series ensures efficient power management, thermal safety, and compliance with USB input current limits for demanding applications. Xecor is an authorized distributor for Analog Devices. Please view our extensive selection of the LTC4085-3 series below.
| Part Number | Description | Package | Inventory | Add To Bom |
|---|---|---|---|---|
| LTC4085EDE-3#PBF | Compact and efficient, this charger meets high demands for reliable power suppl | DFN-14 | 7,836 | |
| LTC4085EDE-3#TRPBF | LTC4085EDE-3#TRPBF | DFN-14 | 2,437 | |
| LTC4085EDE-4#TRPBF | Efficient charging solution for lithium-based device | DFN-14 | 4,130 | |
| LTC4085EDE-4#PBF | Advanced Power Management Solution for Efficient Energy Distributio | DFN-14 | 6,077 |
Key Featrues
Seamless Transition Between Input Power Sources: The device supports smooth switching between Li-Ion/Polymer batteries, USB, and 5V wall adapters, ensuring uninterrupted power delivery and enhancing reliability in portable USB devices.
Internal Ideal Diode with External Diode Controller: The 215mΩ internal ideal diode, combined with an optional external diode controller, minimizes power loss during PowerPath™ operation, improving efficiency when wall adapter or USB input is unavailable.
Load-Dependent Charging: This feature ensures accurate USB input current compliance by dynamically adjusting the charging current based on the load, optimizing power usage and preventing overloading of USB ports.
3.95V Float Voltage: The lower float voltage enhances battery lifespan and provides a higher safety margin in high-temperature environments, making it ideal for applications requiring extended battery durability and thermal safety.
Thermal Feedback for Charging Optimization: The constant-current/constant-voltage operation with thermal feedback maximizes charging rates while preventing overheating, ensuring safe and efficient battery charging in compact designs.
Internal Ideal Diode with External Diode Controller: The 215mΩ internal ideal diode, combined with an optional external diode controller, minimizes power loss during PowerPath™ operation, improving efficiency when wall adapter or USB input is unavailable.
Load-Dependent Charging: This feature ensures accurate USB input current compliance by dynamically adjusting the charging current based on the load, optimizing power usage and preventing overloading of USB ports.
3.95V Float Voltage: The lower float voltage enhances battery lifespan and provides a higher safety margin in high-temperature environments, making it ideal for applications requiring extended battery durability and thermal safety.
Thermal Feedback for Charging Optimization: The constant-current/constant-voltage operation with thermal feedback maximizes charging rates while preventing overheating, ensuring safe and efficient battery charging in compact designs.
Applications
Portable USB Devices: The LTC4085-3/LTC4085-4 is ideal for managing power and charging in portable USB devices, such as smartphones, tablets, and portable media players. Its seamless transition between input power sources (Li-Ion/Polymer battery, USB, and 5V wall adapter) ensures uninterrupted operation, while the 3.95V float voltage enhances battery lifespan and safety, making it perfect for consumer electronics.
Wearable Health Monitors: The LTC4085-3/LTC4085-4 is well-suited for wearable health monitoring devices, such as fitness trackers and smartwatches. Its low-loss PowerPath™ technology and programmable charge current up to 1.2A ensure efficient power management, while the compact 14-lead DFN package allows for integration into space-constrained designs, making it ideal for wearable applications.
IoT Edge Devices: The LTC4085-3/LTC4085-4 is perfect for IoT edge devices that require reliable power management and battery charging. Its ability to limit input current to 20% or 100% of a programmed value ensures compliance with USB power standards, while the automatic output undervoltage charge current reduction feature enhances battery safety and longevity, making it suitable for IoT applications in smart homes and industrial settings.
Portable Medical Devices: The LTC4085-3/LTC4085-4 is ideal for portable medical devices, such as blood glucose monitors and portable diagnostic equipment. Its constant-current/constant-voltage operation with thermal feedback maximizes charging rates without overheating, while the 3.95V float voltage improves high-temperature safety margins, ensuring reliable performance in critical medical applications.
Wearable Health Monitors: The LTC4085-3/LTC4085-4 is well-suited for wearable health monitoring devices, such as fitness trackers and smartwatches. Its low-loss PowerPath™ technology and programmable charge current up to 1.2A ensure efficient power management, while the compact 14-lead DFN package allows for integration into space-constrained designs, making it ideal for wearable applications.
IoT Edge Devices: The LTC4085-3/LTC4085-4 is perfect for IoT edge devices that require reliable power management and battery charging. Its ability to limit input current to 20% or 100% of a programmed value ensures compliance with USB power standards, while the automatic output undervoltage charge current reduction feature enhances battery safety and longevity, making it suitable for IoT applications in smart homes and industrial settings.
Portable Medical Devices: The LTC4085-3/LTC4085-4 is ideal for portable medical devices, such as blood glucose monitors and portable diagnostic equipment. Its constant-current/constant-voltage operation with thermal feedback maximizes charging rates without overheating, while the 3.95V float voltage improves high-temperature safety margins, ensuring reliable performance in critical medical applications.
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