Linear Technology LTC4125
The LTC4125 automatically adjusts its driving frequency to match the LC network resonant frequency. This AutoResonant switching allows the device to deliver maximum power from a low voltage input supply (3V to 5.5V) to a tuned receiver. The device stops delivering power during a fault condition, or if a foreign object is detected.| Part No. | LTC4125 |
|---|---|
| Datasheet | LTC4125 Download |
| Manufacturer |  Linear Technology |
| Description | 5W AutoResonant Wireless Power Transmitter |
| Buy | Stock & Price |
FEATURES
nn Monolithic 5W Wireless Power Transmitter nn AutoResonantTM Switching Frequency Adjusts to Res- onant Capacitance and Transmit Coil Inductance* nn Transmit Power Automatically Adjusts to Receiver Load* nn Input Voltage Range: 3V to 5.5V nn Integrated 100mΩ Full Bridge Switches nn Multiple Foreign Object Detection Methods nn Programmable Average Input Current Limit and Monitor nn NTC Input for System/Component Temperature Qualified Power Transfer nn Wide Operating Switching Frequency Range: 50kHz to 250kHz nn Thermally Enhanced 4mm × 5mm QFN 20-Lead PackageAPPLICATIONS
nn Hermetically and/or Electrically Insulated Devices nn Military Sensors and Devices nn Medical Equipment nn Industrial HandheldsDESCRIPTION
The LTC®4125 is a simple and high performance monolithic full bridge resonant driver capable of delivering over 5W of power wirelessly to a properly tuned receiver. The device controls the current flow in a series connected transmit coil LC network to create a simple, safe and versatile wireless power transmitter.
