Startseite Energiemanagement Leistungsschalter Ideale Diode und ODER-verknüpfende Controller

LM74701-Q1

AKTIV

Idealer Diodencontroller für die Automobilindustrie mit 3,2-V- bis 65-V-Verpolungsschutz und integri

Produktdetails

Vin (min) (V) 3.2 Vin (max) (V) 65 Number of channels 1 Features Automotive load dump compatibility, Enable, Integrated VDS clamp, Linear control, Reverse current blocking, Reverse polarity protection Iq (typ) (mA) 0.08 Iq (max) (mA) 0.13 TI functional safety category Functional Safety-Capable FET External single FET IGate source (typ) (µA) 11000 IGate pulsed (typ) (A) 2.3 Operating temperature range (°C) -40 to 125 VSense reverse (typ) (mV) -11 Rating Automotive Imax (A) 250 Shutdown current (ISD) (mA) (A) 0.001 Device type Ideal diode controller Product type Ideal diode controller
Vin (min) (V) 3.2 Vin (max) (V) 65 Number of channels 1 Features Automotive load dump compatibility, Enable, Integrated VDS clamp, Linear control, Reverse current blocking, Reverse polarity protection Iq (typ) (mA) 0.08 Iq (max) (mA) 0.13 TI functional safety category Functional Safety-Capable FET External single FET IGate source (typ) (µA) 11000 IGate pulsed (typ) (A) 2.3 Operating temperature range (°C) -40 to 125 VSense reverse (typ) (mV) -11 Rating Automotive Imax (A) 250 Shutdown current (ISD) (mA) (A) 0.001 Device type Ideal diode controller Product type Ideal diode controller
SOT-23-THN (DDF) 8 8.12 mm² 2.9 x 2.8
  • 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 2
    • Device CDM ESD classification level C4B
  • 3.2-V to 65-V input range (3.9-V startup)
  • –33-V reverse voltage rating
  • Charge pump for external N-Channel MOSFET
  • 20 mV ANODE to CATHODE forward voltage drop regulation
  • 1-µA shutdown current (EN = Low)
  • 80-µA operating quiescent current (EN = High)
  • 2-A peak gate turn-off current
  • Fast response to reverse current blocking: < 0.75 µs
  • Integrated battery voltage monitoring switch (SW)
  • Meets automotive ISO7637 transient requirements without additional input TVS diode (TVS less)
  • 8-Pin SOT-23 package 2.90 mm × 1.60 mm
  • 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 2
    • Device CDM ESD classification level C4B
  • 3.2-V to 65-V input range (3.9-V startup)
  • –33-V reverse voltage rating
  • Charge pump for external N-Channel MOSFET
  • 20 mV ANODE to CATHODE forward voltage drop regulation
  • 1-µA shutdown current (EN = Low)
  • 80-µA operating quiescent current (EN = High)
  • 2-A peak gate turn-off current
  • Fast response to reverse current blocking: < 0.75 µs
  • Integrated battery voltage monitoring switch (SW)
  • Meets automotive ISO7637 transient requirements without additional input TVS diode (TVS less)
  • 8-Pin SOT-23 package 2.90 mm × 1.60 mm

The LM74701-Q1 is an automotive AEC Q100 qualified ideal diode controller which operates in conjunction with an external N-channel MOSFET as an ideal diode for low loss reverse polarity protection with a 20-mV forward voltage drop. LM74701-Q1 is suitable for input protection of 12-V automotive systems. The 3.2-V input voltage support is particularly well suited for severe cold crank requirements in automotive systems.

The device controls the GATE of the MOSFET to regulate the forward voltage drop at 20 mV. The regulation scheme enables graceful turn-off of the MOSFET during a reverse current event and ensures zero DC reverse current flow. Fast response (< 0.75 µs) to reverse current blocking makes the device suitable for systems with output voltage holdup requirements during ISO7637 pulse testing as well as power fail and input micro-short conditions. The LM74701-Q1 has a unique integrated VDS clamp feature which enables users to achieve TVS less input polarity protection solution and save on average a typical 60% of PCB space in constrained automotive systems.

The LM74701-Q1 controller provides a charge pump gate drive for an external N-channel MOSFET. With the enable pin low, the controller is off and draws approximately 1 µA of current.

The LM74701-Q1 is an automotive AEC Q100 qualified ideal diode controller which operates in conjunction with an external N-channel MOSFET as an ideal diode for low loss reverse polarity protection with a 20-mV forward voltage drop. LM74701-Q1 is suitable for input protection of 12-V automotive systems. The 3.2-V input voltage support is particularly well suited for severe cold crank requirements in automotive systems.

The device controls the GATE of the MOSFET to regulate the forward voltage drop at 20 mV. The regulation scheme enables graceful turn-off of the MOSFET during a reverse current event and ensures zero DC reverse current flow. Fast response (< 0.75 µs) to reverse current blocking makes the device suitable for systems with output voltage holdup requirements during ISO7637 pulse testing as well as power fail and input micro-short conditions. The LM74701-Q1 has a unique integrated VDS clamp feature which enables users to achieve TVS less input polarity protection solution and save on average a typical 60% of PCB space in constrained automotive systems.

The LM74701-Q1 controller provides a charge pump gate drive for an external N-channel MOSFET. With the enable pin low, the controller is off and draws approximately 1 µA of current.

Herunterladen Video mit Transkript ansehen Video

Ähnliche Produkte, die für Sie interessant sein könnten

Selbe Funktionalität wie der verglichene Baustein bei abweichender Anschlussbelegung
LM74721-Q1 AKTIV Idealer Diodencontroller, ohne TVS mit niedrigem IQ und Verpolungsschutz für die Automobilindustrie, Ideal diode controller with ultra-low on IQ.

Technische Dokumentation

star =Von TI ausgewählte Top-Empfehlungen für dieses Produkt
Keine Ergebnisse gefunden. Bitte geben Sie einen anderen Begriff ein und versuchen Sie es erneut.
Alle anzeigen 4
Typ Titel Datum
* Data sheet LM74701-Q1 TVS Less Automotive Reverse Battery Protection Ideal Diode Controller datasheet (Rev. A) PDF | HTML 14 Dez 2021
Functional safety information LM74701-Q1 Functional Safety, FIT Rate, Failure Mode Distribution and Pin FMA PDF | HTML 24 Jan 2024
Analog Design Journal Going TVS-less in Automotive Reverse Battery Protection Designs PDF | HTML 18 Nov 2021
User guide LM74701-Q1EVM User's Guide (Rev. A) PDF | HTML 08 Sep 2021

Design und Entwicklung

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

Evaluierungsplatine

LM74701Q1EVM — LM74701-Q1-Evaluierungsmodul für idealen Diodencontroller mit integrierter VDS-Klemme

Das LM74701-Q1-Evaluierungsmodul (LM74701Q1EVM) unterstützt Entwickler bei der Evaluierung des Betriebs und der Leistungsfähigkeit des idealen Diodencontrollers LM74701-Q1nbsp;mit integrierter VDS-Klemme. Dieses Evaluierungsmodul zeigt, wie ein N-Kanal-Leistungs-MOSFET verwendet werden kann, um mit (...)

Benutzerhandbuch: PDF | HTML
Simulationsmodell

LM74701-Q1 PSpice Transient Model

SNOM717.ZIP (107 KB) - PSpice Model
Simulationstool

PSPICE-FOR-TI — PSpice® für TI Design-und Simulationstool

PSpice® für TI ist eine Design- und Simulationsumgebung, welche Sie dabei unterstützt, die Funktionalität analoger Schaltungen zu evaluieren. Diese voll ausgestattete Design- und Simulationssuite verwendet eine analoge Analyse-Engine von Cadence®. PSpice für TI ist kostenlos erhältlich und (...)
Referenzdesigns

TIDA-010253 — Battery control unit reference design for energy storage systems

This reference design is a central controller for a high-voltage Lithium-ion (Li-ion), lithium iron phosphate (LiFePO4) battery rack. This design provides driving circuits for high-voltage relay, communication interfaces, (including RS-485, controller area network (CAN), daisy chain, and Ethernet), (...)
Design guide: PDF
Gehäuse Pins CAD-Symbole, Footprints und 3D-Modelle
SOT-23-THN (DDF) 8 Ultra Librarian

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

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. ​​​​​​​​​​​​​​

Videos