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Overview
| Topology | Wireless Power Transfer |
| Input voltage | 5 V |
| Output 1 | 1.5 V / 0.03 A |
| IC revision | A |
Description
This evaluation kit consists of 2 x LTC4123 button cell size evaluationboards, and a custom LTC4125 transmitter evaluationboard. The transmitter board is customized to deliver 1mA ofcurrent into the button cell sized LTC4123 boards placed in thedish with maximum freedom of placement. The button cellsboard features the LTC4123 which is available in a 2mm x 2mmDFN package. The custom transmitter does not support conductiveforeign object detection, for example coins or other metallicobjects
Features
Complete Low Power Wireless NiMH Chargernn Low Minimum Input Voltage: 2.2Vnn Small Total Solution Volumenn 1.5V, 25mA Linear Single-Cell NiMH Chargernn Temperature Compensated Charge Voltagenn Integrated Rectifier with Overvoltage Limitnn Zinc-Air Battery Detectionnn Reverse Polarity Protectionnn Thermally Enhanced 6-Lead (2mm × 2mm)DFN package
Typical applications
- Fitness Devices
- Smart Cards
- Moving and/or Rotating Equipment
- Hearing Aids
More information
Products
Order Code | Datasheet | Simulation | Downloads | Status | Product series | Interface Type | Type | Variant | Gender | Pins | Mount | Working Voltage(V (AC)) | Packaging | Compliance | Size | L(µH) | IR(A) | RDC max.(mΩ) | fres(MHz) | Q(%) | P(W) | Samples | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
 | WR-USB Mini/Micro Connectors, Micro USB 2.0, Type B | Simulation– | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWR-USB Mini/Micro Connectors | Interface TypeType B | TypeHorizontal | Variantwith Pads & Pegs | GenderReceptacle | Pins5 | MountSMT | Working Voltage30 V (AC) | PackagingTape and Reel | – | – | – | Rated Current1 A | – | – | – | – | |||
 | WE-WPCC Wireless Power Transfer Transmitter Coil, –, – | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWE-WPCC Wireless Power Transfer Transmitter Coil | – | – | – | – | Pins2 | MountTHT | – | – | ComplianceQi - A13 | Size60 x 52 x 4 mm | Inductance12 µH | Rated Current8 A | DC Resistance72 mΩ | Self Resonant Frequency16 MHz | Q-Factor120 % | Power Capability [1]150 W | ||||
 | WE-WPCC Wireless Power Transfer Receiver Coil, –, – | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWE-WPCC Wireless Power Transfer Receiver Coil | – | – | – | – | Pins2 | MountTHT | – | – | ComplianceQi - Airfuel Alliance | Size28,9 x 15,7 x 0,76 mm | Inductance7.5 µH | Rated Current1.55 A | DC Resistance380 mΩ | Self Resonant Frequency23 MHz | Q-Factor16 % | Power Capability [1]20 W | ||||
 | WE-WPCC Wireless Power Transfer Receiver Coil, –, – | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWE-WPCC Wireless Power Transfer Receiver Coil | – | – | – | – | Pins2 | MountTHT | – | – | Complianceworks with Qi Rx IC's | SizeØ 10 x 1.6 mm | Inductance13 µH | Rated Current0.8 A | DC Resistance500 mΩ | Self Resonant Frequency26 MHz | Q-Factor17 % | Power Capability [1]15 W | ||||
 | WE-WPCC Wireless Power Transfer Receiver Coil, –, – | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWE-WPCC Wireless Power Transfer Receiver Coil | – | – | – | – | Pins2 | MountTHT | – | – | Complianceworks with Qi Rx IC's | SizeØ 6 x 2 mm | Inductance7.2 µH | Rated Current0.8 A | DC Resistance450 mΩ | Self Resonant Frequency32 MHz | Q-Factor10 % | Power Capability [1]5 W |