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DS1817
高有效、3.3V、经济型复位芯片


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概述
完整的数据资料 (PDF, 128kB)
英文 Download this datasheet in PDF format下载

The DS1812 (5V) and DS1817 (3.3V) EconoResets are simple three-pin voltage monitors and power-on resets that hold reset for 150ms for stabilization after power returns to tolerance. The voltage monitor uses precision temperature reference and comparator circuits that detect out-of-tolerance conditions and generate an active high reset.

The output has a push-structure capable of maintaining a valid output to 0 volts with a 100kΩ pull-down resistor. The low-power circuit has a quiescent current consumption of only 40 micro-amps.

The DS1817 replaces discrete components and saves space, particularly in the new SOT-23 package. EconoResets can benefit any system that requires reliable processor operation, especially consumer products like printers, HVAC, energy management, cellular telephones, PDAs, and set-top boxes.

关键特性
  • Power-fail detection
  • Resets system during power transients
  • Push-pull active high reset
  • 150ms stabilization pause
  • Maximum quiescent current of 35µA
  • Operating ranges:
    • 3.3V with 5%, 10% or 20% tolerance
    • -40°C to +85°C

Key Specifications:   Supervisors (1 Monitored Voltage)
Part Number Reset Threshold Range (V) Active-High Reset Output Min. Reset Timeout Range Watchdog Feature Reset Thresh. Acc. (% @+25°C) Max. ICC (µA) Price**
DS1817  2.5 to 3.3 Push-Pull 85ms to 300ms No Watchdog 2.5 35 $0.40 @ 1k
See All Supervisors (1 Monitored Voltage) (268)
Notes:
**This pricing is BUDGETARY, for comparing similar parts. Prices are in U.S. dollars and subject to change. Quantity pricing may vary substantially and international prices may differ due to local duties, taxes, fees, and exchange rates. For volume-specific prices and delivery, please see the price and availability page or contact an authorized distributor.

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    1999-11-19
    本页最后一次更新: 2007-07-25



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