Analog Devices / Maxim Integrated MAX14588 浪涌抑制器
Maxim MAX14588 可调节过压、过流保护器件适用于保护系统，可承受高达 ±40V 的正和负输入电压故障，并带有 190mΩ（典型值）的低 RON 集成式 FET。器件的过压调节保护范围为 6V 至 36V，欠压调节保护范围为 4.5V 至 24V。过压闭锁和欠压闭锁阈值通过使用可选购的外部电阻器进行设置。出厂预置的内部过压闭锁阈值是 33V（典型值），预置的内部欠压闭锁阈值为 19V（典型值）。MAX14588 还具有可设置的、最高达 1A 的电流限制保护功能。发生过流时，器件的故障响应可设置为自动重试、闭锁或连续限流。电流达到阈值时，MAX14588 即在 21ms (典型值)消隐时间过后关断，如果器件设置为自动重试模式，则在重试周期内保持关断状态。如果设置为松开模式，器件则在消隐时间过后松开。如果设置为连续响应模式，器件则连续保持限流状态。MAX14588 还具有反向电流和热关断保护功能。MAX14588 采用小尺寸、16 引脚(3mm x 3mm) TQFN 封装。MAX14588 工作于 -40°C 到 +125°C 的宽幅温度范围。
The MAX14588 also features programmable current-limit protection up to 1A. The device can be set for auto-retry, latch-off, or continuous fault response when an overcurrent event occurs. Once current reaches the threshold, the MAX14588 turns off after 21ms (typ) blanking time, and stays off during the retry period when set to auto-retry mode. The device latches off after the blanking time when set to latch-off mode. The device limits the current continuously when set to continuous mode. The MAX14588 also features reverse current and thermal shutdown protection. Maxim MAX14588 surge suppressors are available in small, 16-pin (3mm x 3mm) TQFN packages. The MAX14588 operates over the -40°C to +125°C extended temperature range.
特性
- +4.5V to +36V Wide input supply range
- Negative input tolerance to -36V
- Low RON 190mΩ (typ)
- Reverse current flow control input
- Thermal overload protection
- Extended -40°C to +125°C temperature range
- Adjustable OVLO and UVLO thresholds
- 0.15A to 1A Programmable forward-current limit
- Programmable overcurrent fault response: autoretry, latch-off, and continuous
- Dual enable inputs: EN and high voltage active-low HVEN
- 16-Pin, 3mm x 3mm, TQFN package
应用
- Condition Monitoring
- Factory Sensors
- Process Analytics
- Process Instrumentation
- Sensor Systems
- Weighing and Batching Systems
Typical Application Circuit
发布日期: 2014-02-11
| 更新日期: 2023-04-18