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Texas Instruments LM5180-Q1 | Demoboard LM5180EVM-DUAL
Automotive 65-VIN PSR flyback converter with 100-V, 1.5-A integrated power MOSFET
Details
| Topologie | Sperrwandler |
| Eingangsspannung | 10-65 V |
| Schaltfrequenz | 350 kHz |
| Ausgang 1 | -7.7 V / 0.2 A |
| Ausgang 2 | 15 V / 0.2 A |
Beschreibung
The LM5180-Q1 is a primary-side regulated (PSR) flyback converter with high efficiency over a wide input voltage range of 4.5 V to 65 V. The isolated output voltage is sampled from the primary-side flyback voltage, eliminating the need for an optocoupler, voltage reference, or third winding from the transformer for output voltage regulation. The high level of integration results in a simple, reliable and high-density design with only one component crossing the isolation barrier. Boundary conduction mode (BCM) switching enables a compact magnetic solution and better than ±1.5% load and line regulation performance. An integrated 100-V power MOSFET provides output power up to 7 W with enhanced headroom for line transients.The LM5180-Q1 converter simplifies implementation of isolated DC/DC supplies with optional features to optimize performance for the target end equipment. The output voltage is set by one resistor, while an optional resistor improves output voltage accuracy by negating the thermal coefficient of the flyback diode voltage drop. Additional features include an internally-fixed or externally-programmable soft start, optional bias supply connection for higher efficiency, precision enable input with hysteresis for adjustable line UVLO, hiccup-mode overload protection, and thermal shutdown protection with automatic recovery.The LM5180-Q1 is qualified to automotive AEC-Q100 grade 1 and is available in 8-pin WSON package with 0.8-mm pin pitch and wettable flanks.
Eigenschaften
- 10-V to 65-V input voltage range
- 15-V and -7.7-V output voltages
- Rated for up to 200 mA of load current
- Resistor divider to EN/UVLO to faciltate programmable input voltage UVLO
- Fully assembled, tested and proven PCB layout with small footprint
Typische Anwendungen
- Isolated bias power rails, IGBT gate drive supplies for BDC and BLDC motor drives
- Industrial and commercial vehicles
- Automotive body and powertrain
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(mA) | ISAT(A) | fres(MHz) | Montageart | Endurance(h) | IRIPPLE(mA) | Z(mΩ) | ILeak(µA) | Ø D(mm) | Vin | VOut1(V) | IOut1(A) | VOut2(V) | IOut2(A) | n | IR 1(mA) | RDC1 max.(Ω) | LS(nH) | VT(V (AC)) | Z @ 100 MHz(Ω) | Zmax(Ω) | Testbedingung Zmax | IR 2(mA) | RDC max.(Ω) | Typ | Muster | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
 | WCAP-ASLL Aluminium-Elektrolytkondensatoren, 10 µF, ±20% | Status Aktivi| Produktion ist aktiv. Erwartete Lebenszeit: >10 Jahre. | ProduktserieWCAP-ASLL Aluminium-Elektrolytkondensatoren | Kapazität10 µF | Kapazität±20% | Nennspannung100 V (DC) | Bauform6.3 x 7.7 | Betriebstemperatur -55 °C up to +105 °C | Verlustfaktor8 % | Isolationswiderstand10 MΩ | – | Länge7.7 mm | Breite6.6 mm | – | – | Verpackung15" Tape & Reel | – | – | – | – | MontageartV-Chip SMT | Endurance 2000 | Rippelstrom65 mA | Impedanz3900 mΩ | Leckstrom10 µA | Durchmesser6.3 mm | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | ||||
| WCAP-CSGP MLCCs 6.3 V(DC), 100 µF, ±20% | Status Aktivi| Produktion ist aktiv. Erwartete Lebenszeit: >10 Jahre. | ProduktserieWCAP-CSGP MLCCs 6.3 V(DC) | Kapazität100 µF | Kapazität±20% | Nennspannung6.3 V (DC) | Bauform1210 | Betriebstemperatur -55 °C up to +85 °C | Verlustfaktor10 % | Isolationswiderstand0.001 GΩ | KeramiktypX5R Klasse II | Länge3.2 mm | Breite2.5 mm | Höhe2.5 mm | Pad Dimension0.6 mm | Verpackung7" Tape & Reel | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | |||||
 | WE-CBF SMT-Ferrit, –, – | Status Aktivi| Produktion ist aktiv. Erwartete Lebenszeit: >10 Jahre. | ProduktserieWE-CBF SMT-Ferrit | – | – | – | Bauform0805 | Betriebstemperatur -55 °C up to +125 °C | – | – | – | Länge2 mm | Breite1.2 mm | Höhe0.9 mm | Pad Dimension0.5 mm | – | – | Nennstrom4500 mA | – | – | MontageartSMT | – | – | – | – | – | – | – | – | – | – | – | Nennstrom [1]6000 mA | Gleichstromwiderstand [1]0.008 Ω | – | – | Impedanz @ 100 MHz22 Ω | Maximale Impedanz40 Ω | Maximale Impedanz1000 MHz | Nennstrom 26000 mA | Gleichstromwiderstand0.008 Ω | TypHochstrom | ||||
 | WE-TPC SMT-Speicherdrossel, –, – | Status Aktivi| Produktion ist aktiv. Erwartete Lebenszeit: >10 Jahre. | ProduktserieWE-TPC SMT-Speicherdrossel | – | – | – | Bauform4818 | Betriebstemperatur -40 °C up to +125 °C | – | – | – | Länge4.8 mm | Breite4.8 mm | Höhe1.8 mm | – | – | Induktivität10 µH | Nennstrom1300 mA | Sättigungsstrom1 A | Eigenresonanzfrequenz45 MHz | MontageartSMT | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | Gleichstromwiderstand0.15 Ω | – | ||||
 | WE-FLYTI MID-FLYTI Flyback Transformers for Texas Instruments, –, – | Status Aktivi| Produktion ist aktiv. Erwartete Lebenszeit: >10 Jahre. | – | – | – | BauformEP7 | Betriebstemperatur -40 °C up to +125 °C | – | – | – | Länge9.76 mm | Breite9.5 mm | Höhe10.54 mm | – | – | Induktivität30 µH | – | Sättigungsstrom2.4 A | – | MontageartSMT | – | – | – | – | – | Input Voltage 8 - 65 V (DC) | Ausgangsspannung 115 V | Ausgangsstrom 10.2 A | Ausgangsspannung 28 V | Ausgangsstrom 20.2 A | Übersetzungsverhältnis1.82:1.82:1 | – | – | Streuinduktivität500 nH | Prüfspannung1500 V (AC) | – | – | – | – | – | – |