IC-Hersteller Texas Instruments

IC-Hersteller (99)

Texas Instruments UCC28881 | Demoboard TIDA-01097

<125-μA Standby, High-Efficiency Power Supply Reference Design for Neutral-less Wireless Lighting Controls

Details

TopologieSperrwandler
Eingangsspannung93.5-126.5 V
Ausgang 13.58 V / 0.01 A
IC-Revision001

Beschreibung

Lighting control devices such as wired or wirelessswitches and dimmers may be used in retrofitenvironments or in new installations. New installationsmay have separate line, neutral, and earth wireswhere the lighting control unit can be powered byconnecting it between the line and neutral, whereas inmost of the retrofit installations only line and earthwires may be available. In such cases, the lightingcontrol unit has to be powered by connecting itbetween line and earth terminals while ensuring thatthe current flowing to earth is limited to 0.5 mA. Thisnecessitates the use of a very low standbyconsumption, high efficiency power supply.This TI Design is a wireless lighting control unit usinga low quiescent current offline converter that enablesexcellent efficiency at low power levels, a low-noise,high-PSRR, low quiescent current, good line and loadtransient response LDO, and a very low standby andlow active current specs wireless microcontroller.

Eigenschaften

<125-μA quiescent current including wireless MCU and 69% efficiency @ 35mW loadOff-line converter with integrated 700-V power MOSFETHigh side current limit circuit with inherent inrush current limiting, output overload and short circuit protectionsLow noise, high PSRR, low quiescent current, good load transient response LDO for wireless controlTested and characterized with SimpleLink Bluetooth® Low Energy Wireless MCU having 1-μA standby, low Rx, Tx, core and sensor controller currents enabling easy implementation of lighting controlsEnables neutral less lighting control applications with earth as return that complies with UL773A

Typische Anwendungen

  • Neutral-less or No Neutral Wireless Lighting, Control Switches, Dimmers, Photo Control Units
  • Motion Sensors, Occupancy and Vacancy Sensors

Weiterführende Informationen

Artikeldaten

Artikel Nr. Daten­blatt Simu­lation Downloads Status ProduktserieVinVOut1
(V)
IOut1
(mA)
fswitch
(kHz)
L
(mH)
NPRI : NSEC : NAUXISAT
(A)
VT
(V (AC))
L
(mm)
W
(mm)
MontageartBauformCTol. CVR
(V (DC))
BetriebstemperaturDF
(%)
RISOKeramiktypFl
(mm)
RDC max.
(Ω)
fres
(MHz)
VersionPins (Value)
(pcs)
ReihenH
(mm)
GenderTypIR
(A)
Verpackung Muster
750343332SPEC
5 Dateien Aktiv i| Produktion ist aktiv. Erwartete Lebenszeit: >10 Jahre.MID-OLTI Offline Flyback Transformers for Texas Instruments 70 - 283 V (AC) 5 100 62 20.18 12.61:1 1500 10.16 8.26 THT EP7 -40 °C up to +125 °C 9.78 Tray
7447462471SPEC
8 Dateien Aktiv i| Produktion ist aktiv. Erwartete Lebenszeit: >10 Jahre.WE-TI Tonneninduktivität 0.47 0.4 6 6 THT 5075 -40 °C up to +125 °C 2.4 3.4 Schrumpfschlauch 8.5 0.35
885012109007SPEC
8 Dateien Aktiv i| Produktion ist aktiv. Erwartete Lebenszeit: >10 Jahre.WCAP-CSGP MLCCs 10 V(DC) 3.2 2.5 121047 µF ±20% 10 -55 °C up to +85 °C 100.002 GΩ X5R Klasse II 0.75 2.5 7" Tape & Reel
61300411121SPEC
6 Dateien Aktiv i| Produktion ist aktiv. Erwartete Lebenszeit: >10 Jahre.WR-PHD 2.54 mm THT Pin Header 10.16 THT -40 °C up to +105 °C1000 MΩ 4 Single Pin Header Gerade 3 Beutel
Artikel Nr. Daten­blatt Simu­lation
750343332SPEC
7447462471SPEC
885012109007SPEC
61300411121SPEC
Muster
Artikel Nr. Daten­blatt Simu­lation Downloads Status ProduktserieVinVOut1
(V)
IOut1
(mA)
fswitch
(kHz)
L
(mH)
NPRI : NSEC : NAUXISAT
(A)
VT
(V (AC))
L
(mm)
W
(mm)
MontageartBauformCTol. CVR
(V (DC))
BetriebstemperaturDF
(%)
RISOKeramiktypFl
(mm)
RDC max.
(Ω)
fres
(MHz)
VersionPins (Value)
(pcs)
ReihenH
(mm)
GenderTypIR
(A)
Verpackung Muster