4,5-V-42-VIN, 3,5 A, Abwärtswandler mit Eco-mode™ für die Automobilindustrie

TPS54340-Q1 wird nicht für neue Designs empfohlen
Dieses Produkt wird zwar noch für bestehende Designs hergestellt, wir raten jedoch von seiner Verwendung für neue Designs ab. Bitte ziehen Sie eine dieser Alternativen in Erwägung:
Drop-In-Ersatz mit verbesserter Funktionalität im Gegensatz zum verglichenen Baustein
TPS54340B-Q1 AKTIV 4,5 V bis 42 V-Eingang, 3,5 A Abwärtswandler mit Eco-Mode™ für die Automobilindustrie Pin-compatible with the TPS54340-Q1.

Produktdetails

Iout (max) (A) 3.5 Vin (min) (V) 4.5 Vin (max) (V) 42 Type Converter Switching frequency (min) (kHz) 100 Switching frequency (max) (kHz) 2500 Features Enable, Frequency synchronization, Light Load Efficiency, Soft Start Adjustable, UVLO adjustable Control mode current mode Vout (min) (V) 0.8 Vout (max) (V) 41 Rating Automotive Operating temperature range (°C) -40 to 125 Iq (typ) (A) 0.000146
Iout (max) (A) 3.5 Vin (min) (V) 4.5 Vin (max) (V) 42 Type Converter Switching frequency (min) (kHz) 100 Switching frequency (max) (kHz) 2500 Features Enable, Frequency synchronization, Light Load Efficiency, Soft Start Adjustable, UVLO adjustable Control mode current mode Vout (min) (V) 0.8 Vout (max) (V) 41 Rating Automotive Operating temperature range (°C) -40 to 125 Iq (typ) (A) 0.000146
HSOIC (DDA) 8 29.4 mm² 4.9 x 6
  • Qualified for Automotive Applications
  • AEC-Q100 Qualified With the Following Results:
    • Device Temperature Grade 1: –40°C to 125°C
      Ambient Operating Temperature Range
    • Device HBM ESD Classification Level H1C
    • Device CDM ESD Classification Level C3B
  • High Efficiency at Light Loads With Pulse Skipping
    Eco-mode™
  • 92-mΩ High-Side MOSFET
  • 146-µA Operating Quiescent Current and 2-µA
    Shutdown Current
  • 100-kHz to 2.5-MHz Adjustable Switching
    Frequency
  • Synchronizes to External Clock
  • Low Dropout at Light Loads With Integrated
    BOOT Recharge FET
  • Adjustable UVLO Voltage and Hysteresis
  • 0.8 V 1% Internal Voltage Reference
  • 8-Pin HSOIC With PowerPAD™ Package
  • –40°C to 150°C TJ Operating Range
  • Supported by WEBENCH® Software Tool
  • Qualified for Automotive Applications
  • AEC-Q100 Qualified With the Following Results:
    • Device Temperature Grade 1: –40°C to 125°C
      Ambient Operating Temperature Range
    • Device HBM ESD Classification Level H1C
    • Device CDM ESD Classification Level C3B
  • High Efficiency at Light Loads With Pulse Skipping
    Eco-mode™
  • 92-mΩ High-Side MOSFET
  • 146-µA Operating Quiescent Current and 2-µA
    Shutdown Current
  • 100-kHz to 2.5-MHz Adjustable Switching
    Frequency
  • Synchronizes to External Clock
  • Low Dropout at Light Loads With Integrated
    BOOT Recharge FET
  • Adjustable UVLO Voltage and Hysteresis
  • 0.8 V 1% Internal Voltage Reference
  • 8-Pin HSOIC With PowerPAD™ Package
  • –40°C to 150°C TJ Operating Range
  • Supported by WEBENCH® Software Tool

The TPS54340-Q1 device is a 42-V, 3.5-A, step-down regulator with an integrated high-side MOSFET. The device survives load-dump pulses up to 45 V per ISO 7637. Current-mode control provides simple external compensation and flexible component selection. A low-ripple pulse-skip mode reduces the no-load supply current to 146 µA. Shutdown supply current is reduced to 1 µA when the enable pin is pulled low.

Undervoltage lockout is internally set at 4.3 V but can be increased using an external resistor divider at the enable pin. The output voltage start-up ramp is internally controlled to provide a controlled start-up and eliminate overshoot.

A wide adjustable frequency range allows for optimization of either efficiency or external component size. Frequency foldback and thermal shutdown protects internal and external components during an overload condition.

The TPS54340-Q1 device is available in an 8-pin thermally-enhanced HSOIC PowerPAD package.

The TPS54340-Q1 device is a 42-V, 3.5-A, step-down regulator with an integrated high-side MOSFET. The device survives load-dump pulses up to 45 V per ISO 7637. Current-mode control provides simple external compensation and flexible component selection. A low-ripple pulse-skip mode reduces the no-load supply current to 146 µA. Shutdown supply current is reduced to 1 µA when the enable pin is pulled low.

Undervoltage lockout is internally set at 4.3 V but can be increased using an external resistor divider at the enable pin. The output voltage start-up ramp is internally controlled to provide a controlled start-up and eliminate overshoot.

A wide adjustable frequency range allows for optimization of either efficiency or external component size. Frequency foldback and thermal shutdown protects internal and external components during an overload condition.

The TPS54340-Q1 device is available in an 8-pin thermally-enhanced HSOIC PowerPAD package.

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Technische Dokumentation

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Alle anzeigen 4
Typ Titel Datum
* Data sheet TPS54340-Q1 4.5-V to 42-V Input, 3.5-A, Step-Down DC-DC Converter With Eco-Mode™ datasheet (Rev. A) PDF | HTML 16 Nov 2015
Selection guide Automotive Infotainment EE Buck Converter/Controller Selection Guide (Rev. B) 15 Apr 2021
Application note NRND & Differences TPS54340/360/540/560 and TPS54340B/360B/540B/560B 05 Apr 2019
EVM User's guide Evaluation Module for the TPS54340-Q1 Step-Down Converter 24 Sep 2013

Design und Entwicklung

Weitere Bedingungen oder erforderliche Ressourcen enthält gegebenenfalls die Detailseite, die Sie durch Klicken auf einen der unten stehenden Titel erreichen.

Evaluierungsplatine

TPS54340-Q1EVM-593 — TPS54340-Q1EVM-593-Evaluierungsmodul/Schalttafel

The TPS54340-Q1EVM-593 is a fully assembled and tested circuit for evaluating the TPS54340-Q1 Step-Down Converter. The TPS54340-Q1EVM-593 operates from a 7V to 42V input (12V nominal) and provides a 5V output at 3.5A. Additional input filtering is used for reducing conducted emissions.

Benutzerhandbuch: PDF
Simulationsmodell

TPS54340 PSpice Transient Model (Rev. A)

SLVM694A.ZIP (111 KB) - PSpice Model
Simulationsmodell

TPS54340 Unencrypted PSpice Transient Model

SLVMCT6.ZIP (5 KB) - PSpice Model
Referenzdesigns

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Test report: PDF
Schaltplan: PDF
Referenzdesigns

PMP4425 — Referenzdesign für Fahrzeug-USB-Ladegerät mit linearer Lastmoment-Kompensation

The PMP4425 reference design provides detailed data for evaluating and verifying a USB charger, which uses a USB charge controller, a buck converter and a shunt amplifier. Additionally the design demonstrates an automotive USB charging port that offers short-to-battery protection. With the help of (...)
Test report: PDF
Schaltplan: PDF
Gehäuse Pins Herunterladen
HSOIC (DDA) 8 Optionen anzeigen

Bestellen & Qualität

Beinhaltete Information:
  • RoHS
  • REACH
  • Bausteinkennzeichnung
  • Blei-Finish/Ball-Material
  • MSL-Rating / Spitzenrückfluss
  • MTBF-/FIT-Schätzungen
  • Materialinhalt
  • Qualifikationszusammenfassung
  • Kontinuierliches Zuverlässigkeitsmonitoring
Beinhaltete Information:
  • Werksstandort
  • Montagestandort

Support und Schulungen

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