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低成本、+2.7V至+5.5V、微功耗温度开关,SOT23封装

业内最简单的温度检测器—易使用、低成本、无需外部元件!

产品详情

主要特征

Parametric specs for Temperature Switches
Switch Type Local
Interface Logic
Functions Temperature Switch/Temperature Comparator
Accuracy (±°C) 4
Temp. Thresh. (°C) 35
45
55
65
75
85
95
105
115
Package/Pins SOT23/5
Oper. Temp. (°C) -55 to +125
Budgetary
Price (See Notes)
0.81
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参量

Parametric specs for Temperature Switches
Switch Type Local
Interface Logic
Functions Temperature Switch/Temperature Comparator
Accuracy (±°C) 4
Temp. Thresh. (°C) 35
45
55
65
75
85
95
105
115
Package/Pins SOT23/5
Oper. Temp. (°C) -55 to +125
Budgetary
Price (See Notes)
0.81

主要特征

  • ±0.5°C (typical) Threshold Accuracy Over Full Temperature Range
  • No External Components Required
  • Low Cost
  • 30µA Supply Current
  • Factory-Programmed Thresholds from -45°C to +125°C in 10°C Increments
  • Open-Drain Output (MAX6501/MAX6503) Push-Pull Output (MAX6502/MAX6504)
  • Pin-Selectable 2°C or 10°C Hysteresis
  • SOT23-5 Package

应用/用途

  • 高速计算机中的µP温度监视
  • 风扇控制
  • 温度报警
  • 温度控制

描述

The MAX6501–MAX6504 low-cost, fully integrated temperature switches assert a logic signal when their die temperature crosses a factory-programmed threshold. Operating from a +2.7V to +5.5V supply, these devices feature two on-chip, temperature-dependent voltage references and a comparator. They are available with factory-trimmed temperature trip thresholds from -45°C to +125°C in 10°C increments, and are accurate to ±0.5°C (typ) or ±6°C (max). These devices require no external components and typically consume 30µA supply current. Hysteresis is pin-selectable at 2°C or 10°C.

The MAX6501/MAX6503 have an active-low, open-drain output intended to interface with a microprocessor (µP) reset input. The MAX6502/MAX6504 have an active-high, push-pull output intended to directly drive fan-control logic. The MAX6501/MAX6502 are offered with hot-temperature thresholds (+35°C to +125°C), asserting when the temperature is above the threshold. The MAX6503/MAX6504 are offered with cold-temperature thresholds (-45°C to +15°C), asserting when the temperature is below the threshold.

The MAX6501–MAX6504 are offered in eight standard temperature versions; contact the factory for pricing and availability of nonstandard temperature versions. They are available in 5-pin SOT23 package.

简化框图

MAX6501、MAX6502、MAX6503、MAX6504:典型工作电路 MAX6501、MAX6502、MAX6503、MAX6504:典型工作电路 Zoom icon

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