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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 | Product series | C | Tol. C | VR (V (DC)) | Operating Temperature | DF (%) | RISO | Ceramic Type | L (mm) | W (mm) | Fl (mm) | IRP,40K (A) | ISAT (A) | Version | Compliance | Size | L (µH) | IR (A) | RDC max. (mΩ) | fres (MHz) | Q (%) | Pins | Rows | H (mm) | Gender | Type | Packaging | Samples | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
 | 885012108022 | SPEC | 8 files | WCAP-CSGP MLCCs 50 V(DC) | 10 µF | ±10% | 50 | -55 °C up to +85 °C | 10 | 0.005 GΩ | X5R Class II | 3.2 | 1.6 | 0.6 | – | – | – | – | 1206 | – | – | – | – | – | – | – | 1.6 | – | – | 7" Tape & Reel | ||
 | 7447779115 | SPEC | 8 files | WE-PD SMT Power Inductor | – | – | – | -40 °C up to +125 °C | – | – | – | 7.3 | 7.3 | – | 2.8 | 2.2 | Robust | – | 7345 | 15 | 1.6 | 81 | – | – | – | – | 4.5 | – | – | – | ||
 | 760308102207 | SPEC | 7 files | WE-WPCC Wireless Power Transfer Receiver Coil | – | – | – | -20 °C up to +105 °C | – | – | – | 40 | 40 | – | – | – | THT | works with Qi Rx IC's | 40 x 40 x 1.2 mm | 8 | 5 | 80 | 16 | 30 | 2 | – | 1.2 | – | – | – | ||
 | 61300211121 | SPEC | – | 6 files | WR-PHD 2.54 mm THT Pin Header | – | – | – | -40 °C up to +105 °C | – | 1000 MΩ | – | 5.08 | – | – | – | – | – | – | – | – | 3 | – | – | – | 2 | Single | – | Pin Header | Straight | Bag |
| Order Code | Datasheet | Simulation | |
|---|---|---|---|
| 885012108022 | SPEC | |
| 7447779115 | SPEC | |
| 760308102207 | SPEC | |
| 61300211121 | SPEC | – |
| Samples |
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| Order Code | Datasheet | Simulation | Downloads | Product series | C | Tol. C | VR (V (DC)) | Operating Temperature | DF (%) | RISO | Ceramic Type | L (mm) | W (mm) | Fl (mm) | IRP,40K (A) | ISAT (A) | Version | Compliance | Size | L (µH) | IR (A) | RDC max. (mΩ) | fres (MHz) | Q (%) | Pins | Rows | H (mm) | Gender | Type | Packaging | Samples |
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