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Overview
| Topology | Buck-Boost Converter |
| Input voltage | 4.5-28 V |
| Output 1 | 5 V |
Description
The Microchip Qi wireless LED lantern is a lighting solution with wireless charging capabilities. It is able to draw up to 5W from a base station and charge a Li-Ion battery at 1A.Battery charging is achieved using a bi-directional synchronous buck converter. The same converter can boost the battery voltage to drive a dimmable string of 3 LEDs at 200mA. A single 8 bit microcontroller manages the Qi communication, battery charging and LED driving, consequently simplifying the device and lowering the cost. Adding wireless charging capabilities to a portable lighting solution enables sealing the device and creating a water-proof or weather-resistant product.
Features
- Able to draw up to 5W from a base station
- Charges a Li-Ion battery at 1A
- Uses a bi-directional synchronous buck converter
More information
Products
Order Code | Datasheet | Simulation | Downloads | Status | Product series | C | Tol. C | VR(V (DC)) | Operating Temperature | DF(%) | RISO | Ceramic Type | L(mm) | W(mm) | H(mm) | Fl(mm) | Packaging | IRP,40K(A) | ISAT(A) | Version | Pins | Type | Mount | Working Voltage(V (AC)) | Compliance | Size | L(µH) | IR(A) | RDC max.(mΩ) | fres(MHz) | Q(%) | P(W) | Samples | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| WCAP-CSGP MLCCs 50 V(DC), 10 µF, ±10% | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWCAP-CSGP MLCCs 50 V(DC) | Capacitance10 µF | Capacitance±10% | Rated Voltage50 V (DC) | Operating Temperature -55 °C up to +85 °C | Dissipation Factor10 % | Insulation Resistance0.005 GΩ | Ceramic TypeX5R Class II | Length3.2 mm | Width1.6 mm | Height1.6 mm | Pad Dimension0.6 mm | Packaging7" Tape & Reel | – | – | – | – | – | – | – | – | Size1206 | – | – | – | – | – | – | |||||
 | WE-PD SMT Power Inductor, –, – | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWE-PD SMT Power Inductor | – | – | – | Operating Temperature -40 °C up to +125 °C | – | – | – | Length7.3 mm | Width7.3 mm | Height4.5 mm | – | – | Performance Rated Current2.8 A | Saturation Current2.2 A | VersionRobust | Pins2 | – | MountSMT | – | – | Size7345 | Inductance15 µH | Rated Current1.6 A | DC Resistance81 mΩ | Self Resonant Frequency19.5 MHz | – | – | ||||
 | WE-WPCC Wireless Power Transfer Receiver Coil, –, – | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWE-WPCC Wireless Power Transfer Receiver Coil | – | – | – | Operating Temperature -20 °C up to +105 °C | – | – | – | Length40 mm | Width40 mm | Height1.2 mm | – | – | – | – | VersionTHT | Pins2 | – | MountTHT | – | Complianceworks with Qi Rx IC's | Size40 x 40 x 1.2 mm | Inductance8 µH | Rated Current5 A | DC Resistance80 mΩ | Self Resonant Frequency16 MHz | Q-Factor30 % | Power Capability [1]80 W | ||||
 | WR-PHD Pin Header - Single, –, – | Simulation– | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWR-PHD Pin Header - Single | – | – | – | Operating Temperature -40 °C up to +105 °C | – | Insulation Resistance1000 MΩ | – | Length5.08 mm | – | – | – | PackagingBag | – | – | – | Pins2 | TypeStraight | MountTHT | Working Voltage250 V (AC) | – | – | – | Rated Current3 A | – | – | – | – |