TPS3801

具有手动复位功能的 200ms 延迟、小型电源电压监控器 5-SC70 -40 to 85

The TPS380x family of supervisory circuits monitor supply voltages to provide circuit initialization and timing supervision, primarily for DSPs and other processor-based systems.

These devices assert a push-pull RESET signal when the SENSE adjustable version or VDD fixed version drops below a preset threshold. The RESET output remains asserted for the factory programmed delay time after the SENSE or VDD return above its threshold.

The TPS380x devices, except the -01, incorporate a manual reset input MR. A low level at MR causes RESET to become active.

The TPS380x uses a precision reference to achieve an overall threshold accuracy of 2%—2.5%. These devices are available in a 5-pin SC-70 package, which is only about half the size of a 5-pin SOT-23 package.

The TPS380x devices are fully specified over a temperature range of –40°C to +85°C.

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Small, 5-Pin SC-70 SOT-323 Package

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Supply Current of 9 µA

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Power-On Reset Generator With Fixed Delay Time

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TPS3800 = 100 ms

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TPS3801 = 200 ms

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TPS3802 = 400 ms

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Precision Supply Voltage Monitor 1.8 V, 2.5 V,

2.7 V, 3 V, 3.3 V, 5 V, and Adjustable

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Manual Reset Input Except TPS3801-01

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Temperature Range:  –40°C to +85°C

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APPLICA ONS

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Applications Using DSPs, Microcontrollers, or Microprocessors

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Wireless Communication Systems

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Portable/Battery-Powered Equipment

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Programmable Controls

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Intelligent Instruments

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Industrial Equipment

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Notebook/Desktop Computers

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Automotive Systems

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