MAX14919

NOT RECOMMENDED FOR NEW DESIGNS

Industrial-Protected Quad-Channel Low-Side Switch

Industry's Most Robust, Fastest Low-Side Switch

Data Sheet (Rev. 5) Product Selection Table

Part Models: 4
1ku List Price: Starting From $2.08

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Overview

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

The MAX14919/MAX14919A industrial-protected quad-channel lowside switch features 140mΩ (typ) on-resistance (R_ON) 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

Part Models: 4
1ku List Price: Starting From $2.08

Documentation

Data Sheet 1

MAX14919-MAX14919A: Industrial-Protected Quad-Channel Low-Side Switch Data Sheet (Rev.5) 04/06/2023

Technical Articles 2

Increasing Output Current by Paralleling Multiple Channels of MAX14919/ MAX14919A 11/03/2021

Industrial IO Handbook 12/13/2021

ADI has always placed the highest emphasis on delivering products that meet the maximum levels of quality and reliability. We achieve this by incorporating quality and reliability checks in every scope of product and process design, and in the manufacturing process as well. "Zero defects" for shipped products is always our goal. View our quality and reliability program and certifications for more information.

Part Model	Pin/Package Drawing	Documentation	CAD Symbols, Footprints, and 3D Models
MAX14919ATP+	LFCSP	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
MAX14919ATP+T	LFCSP	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
MAX14919AUP+	TSSOP_4.4 / TSSOP_6.1	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
MAX14919AUP+T	TSSOP_4.4 / TSSOP_6.1	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys

Part Models	Product Lifecycle	PCN

Jul 25, 2022 - 2237 ASSEMBLY
		pcn_2237
MAX14919AUP+
MAX14919AUP+T

This is the most up-to-date revision of the Data Sheet.

Hardware Ecosystem

Parts	Product Life Cycle	Description
MAX14919A	RECOMMENDED FOR NEW DESIGNS	Industrial-Protected Quad-Channel Low-Side Switch

Tools & Simulations

Software Development 2

IBIS Model 1

MAX14919 IBIS Model

Evaluation Kits

Evaluation Kit for the MAX14919

Buy Now View Details

Features and Benefits

Robust Operation with a Wide Range of Input Voltages and Load Conditions
Surge Protection with Up To ±1kV IEC61000-4-5 at Optional Field Supply Input and Output to Ground
LED Indication of Fault and Reverse-Current Detect conditions
Multiple Fault-Condition Indications
- Reverse-Current Detection
- Undervoltage Lockout on V5 Output
- Short Detection on RCLIM Control Input
- Thermal Shutdown Fault
Includes a FET for Output Reverse-Current Protection
Inrush Current Control to Allow up to 2x the Maximum Load Current
Resistor-Selectable Options to Set Maximum Allowable Load Current
+1.8V to +5.5V Wide Logic-Voltage Range
+3V to +5.5V Isolated Supply Input Range
Proven PCB Layout
Fully Assembled and Tested

Product Details

The MAX14919 evaluation kit (EV kit) provides a proven design to evaluate the MAX14919 industrial-grade quad low-side switch with 140mΩ (typ) R_ON and ±1kV/42Ω surge protection.

The MAX14919 EV kit features an isolated power and signal interface to provide pin-level control of the four lowside switches in the MAX14919. The EV kit also features reverse-current protection to prevent damage caused by miswiring faults at output and return terminals.

The EV kit comes with the MAX14919AUP+ (20 TSSOP-EP, 6.5mm x 6.4mm footprint) device installed.