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Industrial-Protected Quad-Channel Low-Side Switch

Industry's Most Robust, Fastest Low-Side Switch

Product Details

Key Features

Applications/Uses

Simplified Block Diagram

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Key Features

  • 5V or 7V to 60V Supply Voltage
  • 800mA Load Current per OUT
  • Integrated 5V/30mA Linear Regulator
  • Logic Supply Input from 1.62V(min) to 5.5V(max)
  • 5V to 48V Load Voltage Range
  • Up to 200kHz (min) Switching Rates
  • 2x Inrush Load Current Option for 10ms
  • Reduces Power and Heat Dissipation
    • 140mΩ (typ) On-Resistance per channel
    • 1.7mA (typ) Supply Current
    • Settable Load Current Limit
  • Robust Design Features
    • Internal inductive Energy Clamp at 55V(typ)
    • Short-Circuit Protection
    • Reverse Current Detection against Load-Supply Miswiring
    • ±1kV/42Ω, 8μs/20µs Surge Protection
    • ±8kV Contact and ±25kV Airgap ESD Protection
    • -40°C to +125°C Operating Ambient Temperature
  • Active-Low FAULT Indication for:
    • Thermal Overload
    • Reverse Load Current Detection
    • Undervoltage Lockout on V5 Supply
  • Compact 20-pin, 6.5mm x 6.4mm TSSOP Package
  • Compact 20-pin, 4mm x 5mm TQFN Package

Applications/Uses

  • Industrial Digital Outputs
  • Relay and Solenoid Drivers
  • PLC and DCS Systems
  • Motor Control

Description

The MAX14919 industrial-protected quad-channel lowside switch features 140mΩ (typ) on-resistance (RON) per channel with integrated ±1kV/42Ω surge protection for robust operation.

Resistor-settable accurate current limiting provides guaranteed operating currents in the range of 100mA to 800mA. Loads that draw large activation or inrush currents are supported using the 2x inrush load-current option. The outputs can be connected in parallel to achieve higher load currents. The four switches are pin-controlled to allow for simple and fast switching of up to 200kHz

The MAX14919 features reverse current detection. The MAX14919 implements reverse-current protection by driving an external FET for non-capacitive loads.

The MAX14919 quad low-side switch is available in a 6.5mm x 6.4mm footprint, 20-TSSOP package and is specified over the -40°C to +125°C operating temperature range.

Simplified Block Diagram

MAX14919: Simplified Low-Side Switch Application MAX14919: Simplified Low-Side Switch Application Zoom icon

Technical Docs

Support & Training

Search our knowledge base for answers to your technical questions.

Filtered Search

Our dedicated team of Applications Engineers are also available to answer your technical questions. Visit our support portal .