IC manufacturers Analog Devices

IC manufacturers (99)

Analog Devices LTC4125

5W AutoResonant Wireless Power Transmitter

Overview

TopologyWireless Power Transfer
Input voltage3-5.5 V
Switching frequency50-250 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

Products

Order Code Data­sheet Simu­lation Downloads Status Product seriesComplianceSizeL
(µH)
IR
(A)
RDC max.
(mΩ)
fres
(MHz)
QP
(W)
Samples
760308100110SPEC
7 files Active i| Production is active. Expected lifetime: >10 years.WE-WPCC Wireless Power Transfer Transmitter Coil Qi - A10; MP-A1/A7 Ø 50 x 6 mm 24 6 100 5 180 100
Order Code Data­sheet Simu­lation
760308100110SPEC
Samples
Order Code Data­sheet Simu­lation Downloads Status Product seriesComplianceSizeL
(µH)
IR
(A)
RDC max.
(mΩ)
fres
(MHz)
QP
(W)
Samples