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SGM891B - Voltage Detector

This page provides the datasheet information for the SGM891B, a member of the SGM890B Voltage Detector family.

Description

The SGM890B and SGM891B are low-power and high-accuracy voltage detectors.

The adjustable threshold range is 0.8V to 5.0V with increments of 0.1V, which greatly provides application flexibility.

Features

  • Operating Voltage Range: 1V to 6V.
  • High Accuracy Detection: ±1% (TYP).
  • Low Power Consumption: 0.3μA (TYP) at VIN = 1V.
  • Detection Voltage Range: 0.8V to 5.0V (0.1V Increments).
  • Detection Voltage Temperature Coefficient: ±40ppm/℃ (TYP).
  • Adjustable Release Delay Time (SGM890B Only).
  • Sense Pin Separates from Power Supply.
  • N-Channel Open-Drain Output.
  • -40℃ to +125℃ Operating Temperature Range.
  • Available in a Green SOT-23-5 Package.

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Datasheet Details

Part number SGM891B
Manufacturer SG Micro
File Size 807.36 KB
Description Voltage Detector
Datasheet download datasheet SGM891B Datasheet
Additional preview pages of the SGM891B datasheet.

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Full PDF Text Transcription

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SGM890B/SGM891B Voltage Detector with Separated Sense Pin and Delay Capacitor Pin GENERAL DESCRIPTION The SGM890B and SGM891B are low-power and high-accuracy voltage detectors. The adjustable threshold range is 0.8V to 5.0V with increments of 0.1V, which greatly provides application flexibility. Since the sense pin (VSEN) of the device is separated from the power supply pin, it can monitor other power supplies. And when the monitored power supply voltage drops to 0V, the device can also maintain the detection state. In addition, the CD pin of SGM890B has an external capacitor connected to GND, which can adjust the release delay time. Consequently delay time can be set to more than 1s when the delay capacitor (CD) is 1μF.
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