Analog Devices Inc. LTC4124EV#TRPBF
| Quantity | Unit Price | Total Price |
|---|---|---|
| 1 | $8.44 | $8.44 |
| 15+ | $8.17 | $122.55 |
| 25+ | $7.99 | $199.75 |
| 50+ | $7.55 | $377.50 |
| 100+ | $6.66 | $666.00 |
| N+ | $1.33 | Price Inquiry |
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| Product attributes | Property Value |
| Manufacturer | Analog Devices Inc. |
| Product Series | |
| Packaging | Cut Tape (CT) | Tape & Reel (TR) |
| Battery Chemistry | Lithium Ion |
| Number of Cells | 1 |
| Current - Charging | Constant - Programmable |
| Programmable Features | Current, Voltage |
| Fault Protection | - |
| Charge Current - Max | 100mA |
| Battery Pack Voltage | 4.0V, 4.1V, 4.2V, 4.35V |
| Voltage - Supply (Max) | 5.5V |
| Interface | Wireless |
| Operating Temperature | -20°C ~ 85°C (TJ) |
| Grade | - |
| Qualification | - |
| Mounting Type | Surface Mount |
| Package / Case | 12-VFQFN Exposed Pad |
| Supplier Device Package | 12-LQFN (2x2) |
| ROHS |
The LTC4124 from Analog Devices is a specialized wireless battery charger IC for single-cell Lithium Ion batteries. It delivers a modest 100mA charge current, ideal for low-capacity cells found in wearables and medical devices. The charger supports multiple battery voltages including 4.0V, 4.1V, 4.2V, and 4.35V, providing flexibility for different cell chemistries. Its wireless interface enables truly cordless charging solutions. Housed in a compact 12-VFQFN package, it operates within a junction temperature range of -20°C to 85°C.
- True Wireless Charging: The integrated wireless interface eliminates the need for charging ports, enabling fully sealed device designs.
- Multi-Voltage Support: Compatible with 4.0V, 4.1V, 4.2V, and 4.35V batteries, offering design flexibility.
- Low Current Precision: The 100mA charge current is ideal for small-capacity cells, preventing overcharging and extending battery life.
- Ultra-Compact Package: The 12-VFQFN package is one of the smallest available, perfect for miniaturized wearables.
Wireless Earbuds
For tiny single-cell Li-Ion batteries in true wireless earbuds, the LTC4124's 100mA charge current is perfectly suited for low-capacity cells, and the wireless interface enables cordless charging in the case.
Smart Watches
Wearable smartwatches with small 4.2V batteries can be charged wirelessly by placing the device on a charging pad, simplifying the user experience.
Medical Implants
Low-power implantable devices with 4.1V cells benefit from the precise voltage options and the ability to charge via an inductive wireless link, eliminating the need for physical connectors.
Hearing Aids
Rechargeable hearing aids using 4.0V or 4.35V cells can be charged in a small dock, with the LTC4124 managing the delicate charging process safely.
IoT Sensors
Wireless sensors deployed in hard-to-reach locations can be recharged inductively, with the charger's compact 12-VFQFN package fitting into small enclosures.
- Q: What battery chemistry does the LTC4124EV#TRPBF support?
- A: It is designed for Lithium Ion batteries.
- Q: How many cells can it charge?
- A: It supports a single cell.
- Q: What is the maximum charge current?
- A: The maximum charge current is 100mA.
- Q: What battery voltages are supported?
- A: It supports 4.0V, 4.1V, 4.2V, and 4.35V.
- Q: What interface does it use?
- A: It uses a Wireless interface.
- Q: What is the package type?
- A: It comes in a 12-VFQFN Exposed Pad package.
- Q: What battery chemistry does the LTC4124EV#TRPBF support?
- A: It is designed for Lithium Ion batteries.
- Q: How many cells can it charge?
- A: It supports a single cell.
- Q: What is the maximum charge current?
- A: The maximum charge current is 100mA.
- Q: What battery voltages are supported?
- A: It supports 4.0V, 4.1V, 4.2V, and 4.35V.
- Q: What interface does it use?
- A: It uses a Wireless interface.
- Q: What is the package type?
- A: It comes in a 12-VFQFN Exposed Pad package.

LTC4124EV#TRPBF.pdf