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Analog Devices LTC4126 ADJ | Demoboard DC3078A
Wireless Li-Ion Charger with 1.2V Step-Down DC/DC Converter
Overview
| Topology | Buck Converter |
| Input voltage | 4.5-5.5 V |
| Output 1 | 1.2 V / 0.01 A |
Description
Demonstration Kit DC3080-KIT features LTC®4126ADJ, wireless Li-Ion Charger with 1.2V Step-Down DC/ DC Converter. This kit comprises a wireless transmitter DC3081A, a wireless receiver DC3078A and two 6mm application-sized receivers DC3079A. DC3078A wireless charger receiver incorporates an external trickle charge circuit that reduces the charge current to 1mA when a deeply discharged battery with voltage lower than 2.8V is plugged in. The combination of DC3081A transmitter and DC3078A receiver can charge a single Li-Ion battery at up to10mA with an airgap of 4.0mm to 8.0mm.
Features
- Wireless Li-Lon Battery Charger Plus High Efficiency Multi-Mode Charge Current from 1mA to 50mA Via an External Resistor
- Programmable Charge Current from 1mA to 50mA Via an External Resistor
- Wideband Rx Frequency: DC to >10MHz
- Integrated Rectifier with Overvoltage Limit
- Charge Voltage: 4.2V
- Low Battery Disconnect: 3.0V
- NTC Pin for Temperature Qualified Charging
- DC/DC Regulated Output: 1.2V
- DC/DC Output Current: Up to 60mA
- 50kHz/75kHz Switching, No Audible Noise
- Pushbutton and/or Digital on/off Control for DC/DC
- Thermally Enhanced 12-Lead 2mm × 2mm LQFN Package
Typical applications
- Hearing Aids, Low Power Li-Ion Powered Devices, Wireless Headsets, IoT Wearables.
More information
Products
| Order Code | Datasheet | Simulation | Downloads | Product series | H (mm) | Operation Force (Value) (g) | Electrical Life (Cycles) | Actuator Color | Vaporphase process | Compliance | Size | L (µH) | IR (A) | RDC max. (mΩ) | fres (MHz) | Q | P (W) | Pins | Rows | Gender | Type | Packaging | Samples | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
 | 760308101208 | SPEC | 7 files | WE-WPCC Wireless Power Transfer Receiver Coil | 1.68 | – | – | – | – | works with Qi Rx IC's | Ø 10 x 1.6 mm | 13 | 0.8 | 500 | 26 | 17 | 15 | 2 | – | – | – | – | ||
 | 434111025826 | SPEC | – | 5 files | WS-TASV SMT Tact Switch 6.0x3.8 mm | 2.5 | 260 | 30000 | White | not specified | – | – | – | 0.05 | – | – | – | – | – | – | – | – | Tape and Reel | |
 | 60800213421 | SPEC | – | 3 files | WR-PHD 2.00 mm Jumper with Test Point | – | – | – | – | – | – | – | – | 3 | – | – | – | – | 2 | – | Jumper | – | Bag | |
 | 62000311121 | SPEC | – | 6 files | WR-PHD 2.00 mm THT Pin Header | – | – | – | – | – | – | – | – | 2 | – | – | – | – | 3 | Single | Pin Header | Straight | Bag |
| Order Code | Datasheet | Simulation | |
|---|---|---|---|
| 760308101208 | SPEC | |
| 434111025826 | SPEC | – |
| 60800213421 | SPEC | – |
| 62000311121 | SPEC | – |
| Samples |
|---|
| Order Code | Datasheet | Simulation | Downloads | Product series | H (mm) | Operation Force (Value) (g) | Electrical Life (Cycles) | Actuator Color | Vaporphase process | Compliance | Size | L (µH) | IR (A) | RDC max. (mΩ) | fres (MHz) | Q | P (W) | Pins | Rows | Gender | Type | Packaging | Samples |
|---|