Analog Devices LTC4126-ADJ

Details

Topologie	Drahtlose Energieübertragung
Eingangsspannung	5 V
Schaltfrequenz	50-75 kHz
Ausgang 1	1.2 V

Beschreibung

The LT C®4126-ADJ is a low-power wireless single-cell Li-Ion battery charger with an integrated step-down DC/DC regulator. The step-down regulator is a low-noise multi-mode charge pump which is powered from the battery and provides a regulated 1.2V at the output. The switching frequency is set to either 50kHz or 75kHz depending on the mode to keep any switching noise out of the audible range.

Eigenschaften

Wireless Li-Ion Battery Charger Plus HighEfficiency Multi-Mode Charge Pump DC/DC
Programmable Charge Current from 1mA to 50mAVia 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

Typische Anwendungen

Hearing Aids, Low Power Li-Ion Powered Devices, Wireless Headsets, IoT Wearables

Weiterführende Informationen

Artikeldaten

	Artikel Nr.	Datenblatt	Simulation	Downloads	Status	Produktserie	Compliance	Bauform	L(µH)	I_R(A)	R_{DC max.}(mΩ)	f_res(MHz)	Q(%)	P(W)	Muster
	760308103206	WE-WPCC Wireless Power Transfer Receiver Spule, Qi - Airfuel Alliance, 28,9 x 15,7 x 0,76 mm	Simulation	Downloads8 Dateien EDA-Modelle: Bauteile ZIP ALT Altium_WE-WPCC (rev25a).IntLib \| 9.3 MB CDS Cadence_WE-WPCC (rev19c).zip \| 49.4 MB EAG Eagle_WE-WPCC (rev25a).lbr \| 369.5 KB KIC KiCad_WE-WPCC (rev25b).zip \| 102.4 MB ZUK Cadstar_WE-WPCC (rev20a).zip \| 27 KB CAD-Dateien ZIP 3D 3d_760308103206 (rev1).pdf \| 3.2 MB IGS 760308103206 (rev1).igs \| 3.5 MB STP 760308103206 (rev1).stp \| 2.1 MB	Status Aktivi\| Produktion ist aktiv. Erwartete Lebenszeit: >10 Jahre.	ProduktserieWE-WPCC Wireless Power Transfer Receiver Spule	ComplianceQi - Airfuel Alliance	Bauform28,9 x 15,7 x 0,76 mm	Induktivität7.5 µH	Nennstrom1.55 A	Gleichstromwiderstand380 mΩ	Eigenresonanzfrequenz23 MHz	Güte16 %	Leistungsvermögen [1]20 W
	760308101208	WE-WPCC Wireless Power Transfer Receiver Spule, works with Qi Rx IC's, Ø 10 x 1.6 mm	Simulation	Downloads8 Dateien EDA-Modelle: Bauteile ZIP ALT Altium_WE-WPCC (rev25a).IntLib \| 9.3 MB CDS Cadence_WE-WPCC (rev19c).zip \| 49.4 MB EAG Eagle_WE-WPCC (rev25a).lbr \| 369.5 KB KIC KiCad_WE-WPCC (rev25b).zip \| 102.4 MB ZUK Cadstar_WE-WPCC (rev20a).zip \| 27 KB CAD-Dateien ZIP 3D 3d_760308101208 (rev1).pdf \| 44.4 MB IGS Download_IGS_760308101208 (rev1).igs \| 1.2 MB STP Download_STP_760308101208 (rev1).stp \| 371 KB	Status Aktivi\| Produktion ist aktiv. Erwartete Lebenszeit: >10 Jahre.	ProduktserieWE-WPCC Wireless Power Transfer Receiver Spule	Complianceworks with Qi Rx IC's	BauformØ 10 x 1.6 mm	Induktivität13 µH	Nennstrom0.8 A	Gleichstromwiderstand500 mΩ	Eigenresonanzfrequenz26 MHz	Güte17 %	Leistungsvermögen [1]15 W

IC-Hersteller (103)

Wireless Li-Ion Charger with 1.2V Step-Down DC/DC Converter