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Analog Devices LTC4124 | Demoboard DC2775A-B
LTC6990/LTC4124 Demo Board | 25mA Wireless Li-Ion Charger Demonstration Kit
Overview
| Topology | Wireless Power Transfer |
| Input voltage | 4.5-5.5 V |
| Output 1 | 4.35 V / 0.03 A |
Description
DC2769A-B-KIT is a kit of the DC2771A-B transmitter board, featuring LTC6990 and the DC2775A-B, featuring LTC4124. The DC2775A-B receiver can charge a single Li-Ion battery at up to 25mA with an air gap of 2mm to 5mm between the transmit and receive coils.
Features
- Complete Wireless Power Receiver, Li-Ion Charger and PowerPath™ Controller
- Wireless Input Power Control and Rectification
- Wideband Wireless Power Frequency: DC to >10MHz
- Pin-Selectable Charge Current: 10mA/25mA/50mA/100mA
- Pin-Selectable Charge Voltage: 4.0V/4.1V/4.2V/4.35V
- Pin-Selectable Low Battery Disconnect: 2.7V/3.2V
- Zero Battery Drain Current in Disconnect/Ship Mode
- Pin-Selectable Low Battery Pre-Charge Current Enable
- NTC Input for Temperature Qualified Charging
- Safety Charge Termination Timer
- Tiny Total Solution Size with Few Externals
- Small Thermally Enhanced 12-lead 2mm × 2mm LQFN Package
Typical applications
- Medical Wireless Sensors
- IoT Devices, Military Wearables, High End Wireless Headsets, Streaming Headsets with Bluetooth Connectivity, Virtual Reality Headsets
More information
Products
Order Code | Datasheet | Simulation | Downloads | Status | Product series | Compliance | Size | L(µH) | IR(A) | RDC max.(mΩ) | fres(MHz) | Q(%) | P(W) | Pins | Type | Mount | L(mm) | H(mm) | Working Voltage(V (AC)) | Operating Temperature | Samples | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
 | WE-WPCC Wireless Power Transfer Receiver Coil, works with Qi Rx IC's, Ø 10 x 1.6 mm | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWE-WPCC Wireless Power Transfer Receiver Coil | 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 | Pins2 | – | MountTHT | Length10 mm | Height1.68 mm | – | Operating Temperature -20 °C up to +105 °C | ||||
 | WR-PHD Jumper, –, – | Simulation– | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWR-PHD Jumper | – | – | – | Rated Current3 A | – | – | – | – | Pins2 | – | – | – | – | Working Voltage200 V (AC) | Operating Temperature -25 °C up to +105 °C | |||
 | WR-PHD Pin Header, –, – | Simulation– | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWR-PHD Pin Header | – | – | – | Rated Current2 A | – | – | – | – | Pins3 | TypeStraight | MountTHT | Length6 mm | – | Working Voltage200 V (AC) | Operating Temperature -40 °C up to +105 °C |