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Overview
| Topology | Buck Converter |
| Input voltage | 40 V |
| Output 1 | 12 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
- Remote Monitoring Stations
- 12V to 24V Automotive Systems
- Battery Charging from Current Limited Adapter
- Solar Powered Applications
- Portable Handheld Instruments
More information
Products
Order Code | Datasheet | Simulation | Downloads | Status | Product series | L(µH) | IRP,40K(A) | RDC max.(mΩ) | fres(MHz) | Size | Version | Samples | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
 | WE-PD SMT Power Inductor, 22 µH, 2.45 A | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWE-PD SMT Power Inductor | Inductance22 µH | Performance Rated Current2.45 A | DC Resistance110 mΩ | Self Resonant Frequency17 MHz | Size7345 | VersionRobust |