LMR38020-Q1
SIMPLE SWITCHER® Leistungswandler 4,2-V bis 80-V, 2-A, synchroner Abwärtswandler für die Automobilin
LMR38020-Q1
- AEC-Q100 qualified for automotive applications
- Temperature grade 1: –40°C to +125°C, TA
- Functional Safety-Capable
- Configured for rugged automotive applications
- 4.2V to 80V input voltage range
- 2A continuous output current
- Ultra-low 40µA operating quiescent current
- > 1.5mm distance between VIN and GND pin
- 200kHz to 2.2MHz adjustable switching frequency
- Frequency synchronization to external clock
- Spread spectrum for reduced EMI
- 97% maximum duty cycle
- Support start-up with prebiased output
- ±1.0% tolerance voltage reference at room temperature
- Precision enable
- Easy to use device with integrated compensation network enabling low BOM count
- Integrated synchronous rectification
- 8-pin HSOIC with PowerPAD™ integrated circuit package
- PFM and forced PWM (FPWM) options
- Available in 1A, LMR38010-Q1
- Create a custom design using the LMR38020-Q1 with the WEBENCH Power Designer
The LMR38020-Q1 synchronous buck converter is designed to regulate over a wide input voltage range, minimizing the need for external surge suppression components. The LMR38020-Q1 operates during input voltage dips as low as 4.2V, at nearly 100% duty cycle if needed, making the device an excellent choice for 48-V battery automotive applications and MHEV/EV systems.
The LMR38020-Q1 uses precision enable to provide flexibility by enabling a direct connection to the wide input voltage or precise control over device start-up and shutdown. The power-good flag, with built-in filtering and delay, offers a true indication of system status, eliminating the need for an external supervisor. The device incorporates pseudorandom spread spectrum for minimal EMI and switching frequency can be configured between 200kHz and 2.2MHz to avoid noise sensitive frequency bands. In addition, the frequency can be selected for improved efficiency at low operating frequency or smaller design size at high operating frequency.
The device has built-in protection features such as cycle-by-cycle current limit, hiccup mode short-circuit protection, and thermal shutdown in case of excessive power dissipation. The LMR38020-Q1 is qualified to automotive AEC-Q100 grade 1 and is available in an 8-pin HSOIC PowerPAD integrated circuit package.
Ähnliche Produkte, die für Sie interessant sein könnten
Selbe Funktionalität wie der verglichene Baustein bei abweichender Anschlussbelegung
Technische Dokumentation
| Typ | Titel | Datum | ||
|---|---|---|---|---|
| * | Data sheet | LMR38020-Q1 4.2V to 80V, 2A , Automotive, Synchronous SIMPLE SWITCHER Power Converter With 40µA IQ datasheet (Rev. B) | PDF | HTML | 23 Jan 2024 |
| Application note | Reducing Conducted EMI in a Buck Converter for 48 V Automotive Applications | PDF | HTML | 13 Dez 2023 | |
| Certificate | LMR38025QEVM EU Declaration of Conformity (DoC) | 08 Nov 2023 | ||
| User guide | LMR38020QEVM User's Guide | PDF | HTML | 05 Nov 2021 | |
| Functional safety information | LMR380x0-Q1 Functional Safety, FIT Rate, Failure Mode Distribution, and Pin FMA | PDF | HTML | 05 Nov 2021 | |
| Certificate | LMR38020QEVM EU RoHS Declaration of Conformity (DoC) | 26 Okt 2021 |
Design und Entwicklung
Weitere Bedingungen oder erforderliche Ressourcen enthält gegebenenfalls die Detailseite, die Sie durch Klicken auf einen der unten stehenden Titel erreichen.
LMR38020QEVM — LMR38020-Q1 SIMPLE SWITCHER®-Leistungswandler, 80 V, 2 A, synchroner Abwärtswandler, 40 µA Ruhestrom
TIDA-020061 — PD-Referenzdesign für Stromversorgung über Datenleitungen in der Automobilindustrie für Ethernet-
| Gehäuse | Pins | CAD-Symbole, Footprints und 3D-Modelle |
|---|---|---|
| HSOIC (DDA) | 8 | Ultra Librarian |
Bestellen & Qualität
- RoHS
- REACH
- Bausteinkennzeichnung
- Blei-Finish/Ball-Material
- MSL-Rating / Spitzenrückfluss
- MTBF-/FIT-Schätzungen
- Materialinhalt
- Qualifikationszusammenfassung
- Kontinuierliches Zuverlässigkeitsmonitoring
- Werksstandort
- Montagestandort
Empfohlene Produkte können Parameter, Evaluierungsmodule oder Referenzdesigns zu diesem TI-Produkt beinhalten.
Support und Schulungen
TI E2E™-Foren mit technischem Support von TI-Ingenieuren
Inhalte werden ohne Gewähr von TI und der Community bereitgestellt. Sie stellen keine Spezifikationen von TI dar. Siehe Nutzungsbedingungen.
Bei Fragen zu den Themen Qualität, Gehäuse oder Bestellung von TI-Produkten siehe TI-Support.