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接口 传感器接口IC MAX14919
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MAX14919

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Industrial-Protected Quad-Channel Low-Side Switch

Industry's Most Robust, Fastest Low-Side Switch

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产品详情

请参见参数规范 Digital I/O

主要特征

应用/用途

请参见参数规范 Digital I/O
Parametric specs for Digital I/O
Digital Input/Output Digital Output
# Channels 4
VSUPPLY (V) (min) 7
VSUPPLY (V) (max) 60
ISUPPLY (µA) (typ) 1.7
Current Limit (A) (min) 0.14
Current Limit (A) (max) 0.65
Load Current (A) (max) 0.8
Oper. Temp. (°C) -40 to +125
Package/Pins TQFN-CU/20
TSSOP/20
Budgetary
Price (See Notes) 		1.45
请参见参数规范 Digital I/O
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简化框图

技术文档

数据资料 Industrial-Protected Quad-Channel Low-Side Switch Feb 23, 2021

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参量

Parametric specs for Digital I/O
Digital Input/Output Digital Output
# Channels 4
VSUPPLY (V) (min) 7
VSUPPLY (V) (max) 60
ISUPPLY (µA) (typ) 1.7
Current Limit (A) (min) 0.14
Current Limit (A) (max) 0.65
Load Current (A) (max) 0.8
Oper. Temp. (°C) -40 to +125
Package/Pins TQFN-CU/20
TSSOP/20
Budgetary
Price (See Notes) 		1.45
See parametric specs for Digital I/O

主要特征

  • 5V or 7V to 60V Supply Voltage
  • 800mA Load Current per OUT
  • Integrated 5V/30mA Linear Regulator
  • 5V to 48V Load Voltage Range
  • Up to 200kHz (min) Switching Rates
  • Reduces Power and Heat Dissipation
    • 140mΩ (typ) On-Resistance per channel
    • 1.7mA (typ) Supply Current
    • Settable Load Current Limit
    • 2x Inrush Load Current Option for 10ms
  • Robust Design Features
    • Internal inductive Energy Clamp at 55V(typ)
    • Short-Circuit Protection
    • Reverse Current Detection for Protection 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

应用/用途

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

描述

The MAX14919 industrial-protected quad-channel lowside switch features140mΩ (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

TMAX14919 features reverse-current detection to prevent damage against load-supply miswiring faults. This feature is disabled in MAX14919A.

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

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.

简化框图

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

技术文档

数据资料 Industrial-Protected Quad-Channel Low-Side Switch Feb 23, 2021

支持和培训

在Maxim的知识库中搜索您所需的答案。

过滤搜索

Maxim的专业工程师团队也会为您解答相应的技术问题，请访问Maxim的 支持中心 。