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Overview
| Topology | Wireless Power Transfer |
| Input voltage | 4.75-5.25 V |
Description
LTC4125 Driving a 24μH Transmit Coil at 103kHz, 119kHz Frequency Limit and 41.5°C Transmit CoilSurface Temperature Limit in a Wireless Power System with LT3652HV as a 1A Single Cell LiFePO4(3.6V Float) Battery Charger at the Receiver
Features
Input Supply Voltage Regulation Loop for PeakPower Tracking in (MPPT) Solar ApplicationsWide Input Voltage Range: 4.95V to 34V (40V Abs Max)Programmable Charge Rate Up to 2AUser Selectable Termination: C/10 or On-BoardTermination TimerResistor Programmable Float Voltage Up to 18VAccommodates 4-Cell Li-Ion/Polymer, 5-CellLiFePO4, Lead-Acid ChemistriesParallelable for Higher Output Current1MHz Fixed Frequenc 0.5% Float Voltage Reference Accuracy5% Charge Current Accuracy2.5% C/10 Detection AccuracyBinary-Coded Open-Collector Status PinsThermally Enhanced 3mm × 3mm DFN and MSEPackages
Typical applications
- 12V to 24V Automotive Systems
- Remote Monitoring Stations
- Battery Charging from Current Limited Adapter
- Solar Powered Applications
- Portable Handheld Instruments
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 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
 | 760308101303 | SPEC | 7 files | Active i| Production is active. Expected lifetime: >10 years. | WE-WPCC Wireless Power Transfer Receiver Coil | works with Qi Rx IC's | Ø 26 x 1.3 mm | 47 | 1.5 | 500 | 8 | 25 | 20 |
| Order Code | Datasheet | Simulation | |
|---|---|---|---|
| 760308101303 | SPEC |
| Samples |
|---|
| Order Code | Datasheet | Simulation | Downloads | Status | Product series | Compliance | Size | L (µH) | IR (A) | RDC max. (mΩ) | fres (MHz) | Q | P (W) | Samples |
|---|