概览

优势和特点

  • 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 500kHz 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

产品详情

The MAX14919/MAX14919A 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 500kHz.

The MAX14919/MAX14919A features reverse current detection. The MAX14919 implements reverse-current protection by driving an external FET for non-capacitive loads. The MAX14919A has reverse current indication.

Inductive loads are turned off rapidly using the internal high-voltage clamps. The switches are short-circuit and overload protected.

The MAX14919/MAX14919A quad low-side switch is available in a 6.5mm x 6.4mm footprint, 20-TSSOP package and a 4mm x 5mm footprint 20-TQFN package specified over the -40°C to +125°C operating temperature range.

Applications

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

产品分类

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