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LM7311

VORSCHAU

Integrierte ideale Diode, 3,5 V bis 23 V, 33 mΩ, 5 A, mit echter Gegenstromblockierung

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Datenblatt

LM7311

VORSCHAU
Datenblatt Jetzt bestellen

Produktdetails

Vin (max) (V) 23 Vin (min) (V) 3.5 Features Adjustable soft start, Current monitoring, Fault output, Overvoltage protection, Reverse current blocking, Short-circuit protection, Surge protection, Thermal shutdown, adjustable UVLO Ron (typ) (mΩ) 33 Rating Catalog Device type Ideal diode controller Operating temperature range (°C) -40 to 125
Vin (max) (V) 23 Vin (min) (V) 3.5 Features Adjustable soft start, Current monitoring, Fault output, Overvoltage protection, Reverse current blocking, Short-circuit protection, Surge protection, Thermal shutdown, adjustable UVLO Ron (typ) (mΩ) 33 Rating Catalog Device type Ideal diode controller Operating temperature range (°C) -40 to 125
WSON (DRR) 12 9 mm² (3 mm × 3 mm)
  • Wide operating input voltage range: 3.5V to 23V
    • 28V absolute maximum
    • Output negative voltage support up to -1V
  • Integrated back-to-back FETs with low ON-resistance: RON = 33mΩ (typ)
  • 5A continuous current
  • 15A peak current for 10ms with 2% duty cycle
  • Active High Enable input with adjustable undervoltage Lockout (UVLO)
  • Ideal diode operation with true reverse current blocking (RCB)
  • Fixed Overvoltage (OVLO) protection with debounce time
  • Short Circuit protection at startup and steady state
  • Adjustable output slew rate control (dVdt)
  • Overtemperature protection
  • Digital output: Fault Indication (FLT)
  • Small footprint: DFN 3mm × 3mm
  • Wide operating input voltage range: 3.5V to 23V
    • 28V absolute maximum
    • Output negative voltage support up to -1V
  • Integrated back-to-back FETs with low ON-resistance: RON = 33mΩ (typ)
  • 5A continuous current
  • 15A peak current for 10ms with 2% duty cycle
  • Active High Enable input with adjustable undervoltage Lockout (UVLO)
  • Ideal diode operation with true reverse current blocking (RCB)
  • Fixed Overvoltage (OVLO) protection with debounce time
  • Short Circuit protection at startup and steady state
  • Adjustable output slew rate control (dVdt)
  • Overtemperature protection
  • Digital output: Fault Indication (FLT)
  • Small footprint: DFN 3mm × 3mm

The LM7311x family is a highly integrated, circuit-protection and power-management device in a small package. The devices provide multiple protection modes that use few external components and are a robust defense against overloads, short-circuits, voltage surges and excessive inrush current. With integrated back-to-back FETs, reverse current flow from output to input is blocked at all times, making the devices designed for power MUX and ORing applications, as well as systems that need load side energy hold up storage if input power supply fails. The devices use a linear ORing based scheme to maintain almost zero DC reverse current and emulate ideal diode behavior with minimum forward voltage drop and power dissipation.

Output slew rate and inrush current can be adjusted using a single external capacitor. Loads are protected from input overvoltage conditions by cutting off the output if input exceeds an adjustable overvoltage threshold.

The devices are available in a 3mm × 3mm, for improved thermal performance and reduced system footprint.

The devices are characterized for operation over a junction temperature range of –40°C to +125°C.

The LM7311x family is a highly integrated, circuit-protection and power-management device in a small package. The devices provide multiple protection modes that use few external components and are a robust defense against overloads, short-circuits, voltage surges and excessive inrush current. With integrated back-to-back FETs, reverse current flow from output to input is blocked at all times, making the devices designed for power MUX and ORing applications, as well as systems that need load side energy hold up storage if input power supply fails. The devices use a linear ORing based scheme to maintain almost zero DC reverse current and emulate ideal diode behavior with minimum forward voltage drop and power dissipation.

Output slew rate and inrush current can be adjusted using a single external capacitor. Loads are protected from input overvoltage conditions by cutting off the output if input exceeds an adjustable overvoltage threshold.

The devices are available in a 3mm × 3mm, for improved thermal performance and reduced system footprint.

The devices are characterized for operation over a junction temperature range of –40°C to +125°C.
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* Datenblatt LM7311 3.5V–23V, 33mΩ, 5A eFuse With True Reverse Current blocking datasheet PDF | HTML 21.08.2026

Design und Entwicklung

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Evaluierungsplatine

LM7320-30EVM — Evaluierungsmodul für LM7311, LM7320 und LM7330

Das LM7320-30EVM evaluiert die Leistung der eFuse-Bausteine LM7311, LM7320 und LM7330. Das LM7320-30EVM wird mit der LM7320- und der LM7330-eFuse geliefert, um ein 12-V-Design (typisch) und ein 7-A-Design (eingeschwungener Zustand) zu evaluieren.

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