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Industrial-Protected, Quad-Channel,
Low-Side Switch
MAX14919/MAX14919A
General Description
Benefits and Features
The MAX14919/MAX14919A industrial-protected quad-
● 5V or 7V to 60V Supply Voltage
channel low-side switch features 140mΩ (typ) on-resis-
● 800mA Load Current per OUT
tance (R ) per channel with integrated ±1kV/42Ω surge
ON
protection for robust operation.
● Integrated 5V/30mA Linear Regulator
● Logic Supply Input from 1.62V(min) to 5.5V(max)
● 5V to 48V Load Voltage Range
Resistor-settable accurate current limiting provides guar-
anteed 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.
● 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
The MAX14919/MAX14919A feature reverse current de-
tection. The MAX14919 implements reverse-current pro-
tection by driving an external FET for non-capacitive
loads. The MAX14919A has reverse current indication.
• 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
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 pack-
age and a 4mm x 5mm footprint 20-TQFN package spec-
ified over the -40ºC to +125ºC operating temperature
range.
● FAULT Indication for:
• Thermal Overload
• Reverse Load Current Detection
• Undervoltage Lockout on V Supply
5
● Compact 20-pin, 6.5mm x 6.4mm TSSOP Package
● Compact 20-pin, 4mm x 5mm TQFN Package
Applications
● Industrial Digital Outputs
● Relay and Solenoid Drivers
● PLC and DCS Systems
● Motor Control
19-100963; Rev 5; 3/23
Ordering Information appears at end of data sheet.
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