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4.2V to 36V, 1A Current Limiter with OV, UV, Reverse Voltage Protection

Industry's Most Integrated OCP and OVP Solution with More Robust Reverse Current Blocking Capability

产品详情

主要特征

Parametric specs for Overvoltage Protection Controllers
# Channels 1
VIN (V) (min) 4.5
VIN (V) (max) 36
Over Voltage Trip Level (V) Adjustable
Under Voltage Lockout (V) Adjustable
Over Volt. Flag Open-Drain
tGATE (On) (ms) 0.5
tGATE (Off) (µs) 3
35
Oper. Temp. (°C) -40 to +125
Package/Pins TQFN-CU/16
Budgetary
Price (See Notes)
2.1
缩小

简化框图

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参量

Parametric specs for Overvoltage Protection Controllers
# Channels 1
VIN (V) (min) 4.5
VIN (V) (max) 36
Over Voltage Trip Level (V) Adjustable
Under Voltage Lockout (V) Adjustable
Over Volt. Flag Open-Drain
tGATE (On) (ms) 0.5
tGATE (Off) (µs) 3
35
Oper. Temp. (°C) -40 to +125
Package/Pins TQFN-CU/16
Budgetary
Price (See Notes)
2.1

主要特征

  • Industrial Power Protection Increases Robustness
    • Wide Input Supply Range: +4.5V to +36V (MAX17523), +4.2V to +36V (MAX17523A)
    • 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
  • Flexible Design Options Eases Designs
    • Adjustable OVLO and UVLO Thresholds
    • Programmable Forward-Current Limit: 0.15A to 1A
    • Programmable Overcurrent Fault Response: Autoretry, Latch-Off, and Continuous
    • Dual Enable Inputs: EN and High Voltage Active-Low HVEN
  • Saves Space
    • 16-Pin, 3mm x 3mm, TQFN Package

应用/用途

  • 状态监测
  • 工厂传感器
  • 过程分析
  • 过程检测仪表
  • 传感器系统
  • 称重与计量系统

描述

The Olympus series of ICs are the industry’s smallest and robust integrated system protection solutions. The MAX17523/MAX17523A adjustable overvoltage and overcurrent protection device is ideal for protecting systems against positive and negative input voltage faults up to ±40V, and feature low 190mΩ (typ) RON integrated FETs.

The adjustable overvoltage range in MAX17523 is between 6V and 36V, while the adjustable undervoltage range is between 4.5V and 24V. The adjustable overvoltage range in MAX17523A is between 6V and 36V, while the adjustable undervoltage range is between 4.2V and 24V. The overvoltage-lockout (OVLO) and undervoltage-lockout (UVLO) thresholds are set using optional external resistors. The factory preset internal OVLO threshold is 33V (typ), and the preset internal UVLO threshold is 19V (typ).

The MAX17523/MAX17523A also feature programmable current-limit protection up to 1A. The device can be set for autoretry, latch-off, or continuous fault response when an overcurrent event occurs. Once current reaches the threshold, the MAX17523/MAX17523A turn off after 21ms (typ) blanking time, and stay off during the retry period when set to autoretry mode. The devices latch off after the blanking time when set to latch-off mode. The devices limit the current continuously when set to continuous mode. The MAX17523/MAX17523A also feature reverse current and thermal shutdown protection.

The MAX17523 and MAX17523A are available in a small, 16-pin (3mm x 3mm) TQFN package. The MAX17523 operates over the -40°C to +125°C extended temperature range.

简化框图

MAX17523: Functional Diagram MAX17523: Functional Diagram Zoom icon

支持和培训

在Maxim的知识库中搜索技术问题的答案

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

采样:
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