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SGM861

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High Accuracy OV/UV Detection Reset IC with Time Delay and Manual Reset

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The SGM861 is a high precision voltage supervisor with over-voltage (OV) and under-voltage (UV) monitor in a small package. It is very suitable for low-voltage systems that need extremely small tolerance. To prevent error events when the monitored signal is within the normal range, this device integrates very small threshold hysteresis, as well as built-in deglitch capability and noise immunity. 

The SGM861 provides UV and OV threshold monitor function internally so that external resistor divider is not needed any more. As a result, overall cost and peripheral circuit size are reduced, and system reliability can be enhanced. Two factory-set reset delay time can be selected when CT pin is floating or pulled up to VDD through a resistor. The reset delay time can also be adjusted by placing a capacitor between CT pin and GND. The VDD pin and the SENSE pin are separated to provide redundancy for high reliability. The SGM861 has low quiescent current of 1.24μA (TYP). This device is recommended to be used in industrial automation and process control, or conditions that monitor voltages for UV and OV threshold with very high precision. 

The SGM861 is available in a Green TDFN-1.5×1.5-6L package. It operates over the junction temperature range of -40℃ to +125℃.

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FEATURES
  • Input Voltage Range: 1.7V to 5.5V
  • Under-Voltage Lockout (UVLO): 1.7V
  • Low Quiescent Current: 4μA (MAX)
  • High Threshold Accuracy:
    • ±0.55% (TYP), ±1% (MAX) at +25℃:
    • ±0.55% (TYP), ±2.5% (MAX) at -40℃ to +125℃
  • Fixed Window Threshold Levels
    • 50mV Steps from 0.5V to 1.3V, 1.5V, 1.8V, 2.5V, 2.8V, 2.9V, 3.3V, 5V
    • Available in UV Threshold Only
    • Two Available Window Tolerance: ±5%, ±7%
  • Programmable Voltage Threshold Levels
  • Deglitch Capability and Hysteresis
  • Factory-Set Reset Delay: 50μs, 1ms, 5ms, 10ms, 20ms, 100ms, 200ms
  • Adjustable Reset Delay with Different CT Capacitor
  • Active-Low Open-Drain Output
  • nRESET Voltage Latch Function
  • Available in a Green TDFN-1.5×1.5-6L Package
APPLICATIONS

Motor Drivers
Industrial Automation and Process Control
Family Cinema and Amusement
Grid Infrastructure
Data Center and Enterprise Computing

Ordering Information
Part Number
StatusPackagePinsPd-Free
RoHS
REACH
Green
MSL RatingOperating Temperature RangeMaterial ContentReliability Report
Unit Resale Price*
(Volume Range: in USD)
Lead Time**
(Volume Range: Days)

* The unit resale price is for reference purposes only. Please contact our distributors for a formal quotation.

** The lead time provided is for reference purposes only and is subject to change based on different circumstances.

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SG Micro Corp (SGMICRO) specializes in the development, manufacturing and sales of high-performance and high-reliability integrated circuits for analog signal conditioning and system power management, offering innovative solutions to a broad range of applications in the industrial, automotive, communication, computing, consumer electronics, and medical equipment markets.
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