Analog Devices Inc. LTC4155EUFD#TRPBF
| Quantity | Unit Price | Total Price |
|---|---|---|
| 1 | $9.26 | $9.26 |
| 15+ | $8.97 | $134.55 |
| 25+ | $8.78 | $219.50 |
| 50+ | $8.29 | $414.50 |
| 100+ | $7.31 | $731.00 |
| N+ | $1.46 | Price Inquiry |
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| Product attributes | Property Value |
| Manufacturer | Analog Devices Inc. |
| Product Series | PowerPath™ |
| Packaging | Cut Tape (CT) | Tape & Reel (TR) |
| Battery Chemistry | Lithium Ion/Polymer |
| Number of Cells | 1 |
| Current - Charging | Constant - Programmable |
| Programmable Features | - |
| Fault Protection | Over Voltage |
| Charge Current - Max | 3.7A |
| Battery Pack Voltage | 4.2V |
| Voltage - Supply (Max) | 5.5V |
| Interface | I2C, USB |
| Operating Temperature | -40°C ~ 125°C (TJ) |
| Grade | - |
| Qualification | - |
| Mounting Type | Surface Mount |
| Package / Case | 28-WFQFN Exposed Pad |
| Supplier Device Package | 28-QFN (4x5) |
| ROHS |
The LTC4155EUFD is a high-current, USB-compatible battery charger IC from Analog Devices for single-cell Lithium Ion/Polymer batteries. It delivers a programmable charge current up to 3.7A at a 4.2V battery voltage. Featuring an I2C interface for digital control and an integrated Over Voltage protector, this charger is housed in a compact 28-WFQFN package. It is well-suited for fast-charging portable electronics and industrial devices requiring robust thermal performance.
- Fast Charging: Supports up to 3.7A charge current, significantly reducing charge time for high-capacity single-cell Li-Polymer batteries.
- Digital Control: I2C interface enables precise monitoring and programming of charging parameters for optimized system integration.
- Wide Temperature Operation: Rated for -40°C to 125°C junction temperature, ensuring reliable performance in harsh environments.
- Integrated Protection: Built-in Over Voltage protection safeguards the battery and system from fault conditions.
High-Capacity Portable Electronics
Charge single-cell Lithium Ion/Polymer batteries in tablets and ultrabooks at up to 3.7A, reducing charge time for large-capacity cells.
USB-Powered Devices
With a USB interface, it can draw power from standard USB ports while using I2C for advanced system monitoring and control.
Industrial Handheld Terminals
Operates over a -40°C to 125°C junction temperature range, making it suitable for rugged handheld scanners and field equipment.
Medical Monitoring Devices
Provides a reliable 4.2V charge for single-cell Li-Poly packs used in wearable and portable medical devices, with overvoltage protection for safety.
Compact IoT Hubs
The 28-WFQFN package allows for a compact PCB layout in space-constrained IoT gateways and smart home controllers.
- Q: What battery chemistry does the LTC4155EUFD support?
- A: It is designed for Lithium Ion/Polymer batteries.
- Q: How many battery cells can it charge?
- A: It supports a single cell (1) configuration.
- Q: What is the maximum charge current?
- A: The maximum charge current is 3.7A.
- Q: What is the battery pack voltage?
- A: The battery pack voltage is 4.2V.
- Q: What fault protection is included?
- A: It includes Over Voltage protection.
- Q: What interface does it use?
- A: It uses both I2C and USB interfaces.
- Q: What battery chemistry does the LTC4155EUFD support?
- A: It is designed for Lithium Ion/Polymer batteries.
- Q: How many battery cells can it charge?
- A: It supports a single cell (1) configuration.
- Q: What is the maximum charge current?
- A: The maximum charge current is 3.7A.
- Q: What is the battery pack voltage?
- A: The battery pack voltage is 4.2V.
- Q: What fault protection is included?
- A: It includes Over Voltage protection.
- Q: What interface does it use?
- A: It uses both I2C and USB interfaces.

LTC4155EUFD#TRPBF.pdf