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LM74680

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Idealer Dioden-Brücken-Controller für verlustarme Gleichrichtung, 100 V

Produktdetails

Vin (min) (V) 4 Vin (max) (V) 80 Number of channels 1 Features Enable, Full bridge, Full bridge diode rectifier controller, Linear control, Reverse current blocking, Reverse polarity protection Iq (typ) (mA) 0.27 Iq (max) (mA) 0.35 FET External single FET IGate source (typ) (µA) 160 IGate sink (typ) (mA) 100 Operating temperature range (°C) -40 to 125 VSense reverse (typ) (mV) -1 Design support EVM Rating Catalog VGS (max) (V) 14 Shutdown current (ISD) (mA) (A) 0.0000382 Device type Ideal diode bridge controller Product type Ideal diode controller
Vin (min) (V) 4 Vin (max) (V) 80 Number of channels 1 Features Enable, Full bridge, Full bridge diode rectifier controller, Linear control, Reverse current blocking, Reverse polarity protection Iq (typ) (mA) 0.27 Iq (max) (mA) 0.35 FET External single FET IGate source (typ) (µA) 160 IGate sink (typ) (mA) 100 Operating temperature range (°C) -40 to 125 VSense reverse (typ) (mV) -1 Design support EVM Rating Catalog VGS (max) (V) 14 Shutdown current (ISD) (mA) (A) 0.0000382 Device type Ideal diode bridge controller Product type Ideal diode controller
WSON (DRR) 12 9 mm² 3 x 3
  • Input operating voltage range: 5V to 80V
    • 100V absolute maximum
  • 4× integrated gate drive control
  • 165µA gate pull-up strength
  • 100mA gate pull-down strength
  • Linear gate regulation control for supply ORing applications
    • VTG_REG = 11mV
  • Enable pin for user-controlled device on/off function
  • –40°C to 125°C operating junction temperature range
  • Small footprint: 3mm × 3mm VQFN-12

    • Meets IPC-9592 spacing rules
  • Input operating voltage range: 5V to 80V
    • 100V absolute maximum
  • 4× integrated gate drive control
  • 165µA gate pull-up strength
  • 100mA gate pull-down strength
  • Linear gate regulation control for supply ORing applications
    • VTG_REG = 11mV
  • Enable pin for user-controlled device on/off function
  • –40°C to 125°C operating junction temperature range
  • Small footprint: 3mm × 3mm VQFN-12

    • Meets IPC-9592 spacing rules

The LM74680 is an ideal diode bridge controller that provides voltage rectification by driving four N-channel MOSFETs in a full-bridge configuration. LM74680 enables lower voltage drop and reduced power dissipation as compared to conventional diode bridge rectifiers. This helps to simplify the power supply design, eliminate heat sinks, and reduce PCB area. The integrated charge pump allows use of N-channel MOSFETs, which are smaller and more cost-effective than P-channel MOSFETs for the same power level. It also offers fast response to reverse current conditions for protection against input short events. The LM74680 has an enable pin which allows for the gate driver to be either enabled or disabled by an external signal. The LM74680 supports voltage rectification from DC to 1kHz.

This device is characterized for operation over a junction temperature range of –40°C to +125°C.

The LM74680 is an ideal diode bridge controller that provides voltage rectification by driving four N-channel MOSFETs in a full-bridge configuration. LM74680 enables lower voltage drop and reduced power dissipation as compared to conventional diode bridge rectifiers. This helps to simplify the power supply design, eliminate heat sinks, and reduce PCB area. The integrated charge pump allows use of N-channel MOSFETs, which are smaller and more cost-effective than P-channel MOSFETs for the same power level. It also offers fast response to reverse current conditions for protection against input short events. The LM74680 has an enable pin which allows for the gate driver to be either enabled or disabled by an external signal. The LM74680 supports voltage rectification from DC to 1kHz.

This device is characterized for operation over a junction temperature range of –40°C to +125°C.

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Technische Dokumentation

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Typ Titel Datum
* Data sheet LM74680 Ideal Diode Bridge Controller for Low Loss Rectification datasheet PDF | HTML 10 Dez 2024
EVM User's guide LM74680 Evaluation Module for Ideal Diode Bridge Controller PDF | HTML 04 Dez 2024
Certificate LM74680EVM EU Declaration of Conformity (DoC) 31 Okt 2024

Design und Entwicklung

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Evaluierungsplatine

LM74680EVM — LM74680 evaluation module

The LM74680 evaluation module (EVM) helps designers evaluate the operation and performance of the LM74680 ideal diode bridge controller (12-pin DRR package). This EVM demonstrates how an N-channel power MOSFET driven by LM74680 can emulate a very low forward voltage diode and increase the (...)
Benutzerhandbuch: PDF | HTML
Simulationsmodell

LM74680 PSpice Transient Model

SLUM918.ZIP (510 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 (...)
Gehäuse Pins CAD-Symbole, Footprints und 3D-Modelle
WSON (DRR) 12 Ultra Librarian

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