DIO20891CN4

Overview

The DIO20891CN4 is an ultra low-power comparator from Dioo Microcircuits, housed in a DFN0.8*0.8-4 package. It operates on a supply voltage range of 1.4V to 5.5V with a typical quiescent current of 0.3μA at 1.4V and a maximum of 1000nA across the -40°C to 85°C temperature range. The device features rail-to-rail input capability and a push-pull output stage capable of driving up to 23mA. Propagation delay is typically 8μs at 1.4V with 100mV overdrive. Input offset voltage is ±5mV at 25°C, increasing to ±7mV over the full operating temperature range.

Feature Summary

• Ultra-low power consumption optimized for battery-powered applications
• Rail-to-rail common-mode input voltage range
• Push-pull output stage for direct capacitive or resistive load driving
• Guaranteed operation at standard voltages including 1.4V, 1.8V, 2.5V, and 5.0V

Applications

• RC Timers
• Window Detectors
• IR Receiver circuits
• Multi-vibrators
• Alarm and Monitoring Circuits

Procurement Notes

Verify the specific ordering suffix CN4 corresponds to the DFN0.8*0.8-4 package configuration. Confirm that the component meets Green or RoHS compliance standards as indicated in the manufacturer's ordering information. Ensure the selected variant matches the required tape and reel quantity specifications for production integration.

Selection Notes

Select this component when minimizing quiescent current is critical while maintaining functional performance at low supply voltages. The rail-to-rail input range simplifies single-supply interface designs without requiring level shifting. The push-pull output eliminates the need for external pull-up resistors, reducing board space and component count in compact handheld electronics.

Part Context

This part belongs to the DIO20891/2 series of ultra low-power comparators manufactured by Dioo Microcircuits Co., Ltd. The series includes variants with different channel counts and package options such as SC70-5, DFN1*1-6, and DFN1.6*1.2-8. The DIO20891CN4 specifically utilizes the smallest footprint package within the family, targeting space-constrained mobile phone and handheld product applications.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation.