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Texas Instruments UCC28881 | Demoboard TIDA-01097
<125-μA Standby, High-Efficiency Power Supply Reference Design for Neutral-less Wireless Lighting Controls
Details
| Topologie | Sperrwandler |
| Eingangsspannung | 93.5-126.5 V |
| Ausgang 1 | 3.58 V / 0.01 A |
| IC-Revision | 001 |
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 | Produktserie | C | Tol. C | VR(V (DC)) | Bauform | Betriebstemperatur | DF(%) | RISO | Keramiktyp | L(mm) | B(mm) | H(mm) | Fl(mm) | Verpackung | L(µH) | IR(A) | ISAT,10%(A) | RDC max.(Ω) | fres(MHz) | Version | Pins | Typ | Montageart | Arbeitsspannung(V (AC)) | Muster | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| WCAP-CSGP MLCCs 10 V(DC), 47 µF, ±20% | Status Aktivi| Produktion ist aktiv. Erwartete Lebenszeit: >10 Jahre. | ProduktserieWCAP-CSGP MLCCs 10 V(DC) | Kapazität47 µF | Kapazität±20% | Nennspannung10 V (DC) | Bauform1210 | Betriebstemperatur -55 °C up to +85 °C | Verlustfaktor10 % | Isolationswiderstand0.002 GΩ | KeramiktypX5R Klasse II | Länge3.2 mm | Breite2.5 mm | Höhe2.5 mm | Pad Dimension0.75 mm | Verpackung7" Tape & Reel | – | – | – | – | – | – | – | – | – | – | |||||
 | WE-TI Tonneninduktivität, –, – | Status Aktivi| Produktion ist aktiv. Erwartete Lebenszeit: >10 Jahre. | ProduktserieWE-TI Tonneninduktivität | – | – | – | Bauform5075 | Betriebstemperatur -40 °C up to +125 °C | – | – | – | Länge6 mm | Breite6 mm | Höhe8.5 mm | – | – | Induktivität470 µH | Nennstrom0.35 A | Sättigungsstrom 10.4 A | Gleichstromwiderstand2.4 Ω | Eigenresonanzfrequenz3.4 MHz | VersionSchrumpfschlauch | – | – | MontageartTHT | – | ||||
 | WR-PHD Stiftleisten - Einreihig, –, – | Simulation– | Status Aktivi| Produktion ist aktiv. Erwartete Lebenszeit: >10 Jahre. | ProduktserieWR-PHD Stiftleisten - Einreihig | – | – | – | – | Betriebstemperatur -40 °C up to +105 °C | – | Isolationswiderstand1000 MΩ | – | Länge10.16 mm | – | – | – | VerpackungBeutel | – | Nennstrom3 A | – | – | – | – | Pins4 | TypGerade | MontageartTHT | Arbeitsspannung250 V (AC) | |||
 | 750343332 | Flyback Transformer, –, – | Status Aktivi| Produktion ist aktiv. Erwartete Lebenszeit: >10 Jahre. | Produktserie Flyback Transformer | – | – | – | BauformEP7 | Betriebstemperatur -40 °C up to +125 °C | – | – | – | Länge10.16 mm | Breite8.26 mm | Höhe9.78 mm | – | VerpackungTray | Induktivität20180 µH | – | – | – | – | – | – | – | MontageartTHT | – |