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Automotive low-quiescent-current 1% accurate supervisor with programmable delay

Availability: 5,945


Package | PIN: WSON (DSE) | 6
Temp: Q (-40 to 125)
Carrier: Cut Tape
Qty Price
1-9 $1.54
10-24 $1.38
25-99 $1.28
100-249 $1.11
250-499 $1.03
500-749 $0.86
750-999 $0.71
1,000+ $0.65


  • Qualified for Automotive Applications
  • AEC-Q100 Qualified With the Following Results:
    • Device Temperature Grade 1: -40°C to 125°C Ambient Operating TemperatureRange
    • Device HBM ESD Classification Level 2
    • Device CDM ESD Classification Level C4B
  • Power-On-Reset (POR) Generator with Adjustable Delay Time: 25 µs to 30 s
  • Very Low Supply Current: 2.1 µA (Typical)
  • High Threshold Accuracy: 1% (max)
  • Precision Hysteresis
  • Fixed and Adjustable Threshold Voltages:
    • Fixed Thresholds for Standard Rails:
      1.2 V to 5 V
    • Adjustable Down to 1.15 V
  • Manual Reset (MR) Input
  • Open-Drain RESET Output
  • Temperature Range: –40°C to +125°C
  • Package: 1.5-mm × 1.5-mm WSON

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Texas Instruments  TPS389033KQDSERQ1

The TPS3890-Q1 is a precision voltage supervisor with low-quiescent current that monitorssystem voltages as low as 1.15 V, asserting an open-drain RESET signal whenthe SENSE voltage drops below a preset threshold or when the manual reset(MR) pin drops to a logic low. The RESET outputremains low for the user-adjustable delay time after the SENSE voltage and manual reset(MR) return above the respective thresholds. The TPS3890-Q1 family uses aprecision reference to achieve 1% threshold accuracy. The reset delay time can be user-adjustedbetween 25 µs and 30 s by connecting the CT pin to an external capacitor. The TPS3890-Q1 has a verylow quiescent current of 2.1 µA and is available in a small 1.5-mm × 1.5-mm package, making thedevice well-suited for battery-powered and space-constrained applications. The device is fullyspecified over a temperature range of –40°C to +125°C (TJ).