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SGM891B - Voltage Detector

Download the SGM891B datasheet PDF. This datasheet also covers the SGM890B variant, as both devices belong to the same voltage detector family and are provided as variant models within a single manufacturer datasheet.

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.

📥 Download Datasheet

Note: The manufacturer provides a single datasheet file (SGM890B-SGMicro.pdf) that lists specifications for multiple related part numbers.

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Other Datasheets by SG Micro

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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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