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Overview
| Topology | Wireless Power Transfer |
| Input voltage | 3-5.5 V |
| Switching frequency | 50-250 kHz |
Description
Driving a 24μH Transmit Coil at 103kHz, with 1.3A Input Current Threshold, 119kHz FrequencyLimit and 41.5°C Transmit Coil Surface Temperature Limit in a Wireless Power System with LTC4120-4.2 as a400mA Single Cell Li-Ion Battery Charger at the Receiver
Features
Monolithic 5W Wireless Power TransmitterAutoResonantTM Switching Frequency Adjusts to Resonant Capacitance and Transmit Coil InductanceTransmit Power Automatically Adjusts to Receiver LoadInput Voltage Range: 3V to 5.5VIntegrated 100mΩ Full Bridge SwitchesMultiple Foreign Object Detection MethodsProgrammable Average Input Current Limit and MonitorNTC Input for System/Component Temperature Qualified Power TransferWide Operating Switching Frequency Range: 50kHz to 250kHzThermally Enhanced 4mm × 5mm QFN 20-Lead Package
Typical applications
- Industrial Handhelds
- Medical Equipment
- Hermetically and/or Electrically Insulated Devices
- Military Sensors and Devices
More information
Products
Order Code | Datasheet | Simulation | Downloads | Status | Product series | Compliance | Size | L(µH) | IR(A) | RDC max.(mΩ) | fres(MHz) | Q(%) | P(W) | Samples | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
 | WE-WPCC Wireless Power Transfer Transmitter Coil, Qi - A10; MP-A1/A7, Ø 50 x 6 mm | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWE-WPCC Wireless Power Transfer Transmitter Coil | ComplianceQi - A10; MP-A1/A7 | SizeØ 50 x 6 mm | Inductance24 µH | Rated Current6 A | DC Resistance100 mΩ | Self Resonant Frequency5 MHz | Q-Factor180 % | Power Capability [1]100 W |