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R3154 SeriesNEW

42 V Input Window Voltage Detector with Diagnostic Function

  • Consumer
  • Industrial
  • Automotive
  • RoHS

The R3154 is a Window Voltage Detector suitable for functional safety requirement. This device monitors over-and-under output voltages from the power supply IC for a microprocessor and a sensor, and detects abnormal voltage of systems. Its undervoltage detection down to 0.55 V is suitable for low power devices. Also, operation check of voltage detection is available with the TEST pin.

  • Power supply from battery enables the voltage detector to operate independently from the power source.
  • High-accuracy over-and-undervoltage detection from -1.25% to 0.75% and the hysteresis of Max. 0.75%.
  • Overvoltage detection: 0.75 V at minimum, Undervoltage detection: 0.55 V at minimum.
  • Compact package of SOT-23-6. Safe and secure adjacent pin configuration to prevent a short circuit.

Specs & Datasheets

  Consumer Industrial Automotive
Operating Voltage Range 3.0 V to 42.0 V (50.0 V)
Operating Temperature Range -40°C to 105°C (125°C) -40°C to 125°C (150°C) -40°C to 125°C (150°C)
Supply Current Typ. 2.0 µA
Overvoltage Detection 0.75 V to 3.70 V (0.01 V step)
Undervoltage Detection 0.55 V to 3.30 V (0.01 V step)
Detector Threshold Accuracy ±0.5% (Ta = 25°C)
-1.25% to 0.75% (–40°C ≤ Ta ≤ 105°C)
±0.5% (Ta = 25°C)
-1.25% to 0.75% (–40°C ≤ Ta ≤ 125°C)
±0.5% (Ta = 25°C)
-1.25% to 0.75% (–40°C ≤ Ta ≤ 125°C)
Detection Release Hysteresis Typ. 0.5%
Release Delay Time Typ. 4 ms (CD = 0.01 µF)
Output Type Nch Open Drain
Package SOT-23-6

Download Datasheet

Technical Documents

Typical Application

Typical Application

Quality & Packages

Product Name Compatibility Package Marking Reliability
R3154NxxxA-TR-FE
  • gradeConsumerC
SOT-23-6 R3154N R3154N-FE
R3154NxxxA-TR-YE
  • gradeIndustrialI
SOT-23-6 R3154N R3154N-YE
R3154NxxxA-TR-R
  • gradeAutomotiveA
SOT-23-6 R3154N R3154N-R
R3154NxxxA-TR-AE
  • gradeAutomotiveA
SOT-23-6 R3154N R3154N-AE

Refer to the datasheets for the details on the product.
The package file includes package dimensions, taping specifications, taping reels dimensions, power dissipations, and recommended land pattern.
Please contact us or our distributors for unpublished reliability information.

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Functional Description

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Category:Voltage Detectors (Reset ICs)

Features Window Detector,Diagnostic Function
VIN
min (V)
3.0
VIN
max (V)
42.0
Release
Delay Time
Adjustable
VDET
min (V)
0.55
VDET
max (V)
3.70