UC1903J883B The Texas Instruments UC1903J883B is a quad supply and line monitor IC designed to respond to under- and over-voltage conditions. It operates over a wide temperature range and supply voltage.
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UC1903J883B

Available from 2 distributors
Mfr Name: Texas Instruments
Texas Instruments
The Texas Instruments UC1903J883B is a quad supply and line monitor IC designed to respond to under- and over-voltage conditions. It operates over a wide temperature range and supply voltage.
✓ Total Stock: 305 pcs
$ Price Range: $37.56

UC1903J883B Available from 2 distributors

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300 pcs
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5 pcs
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UC1903J883B Specifications Quick View

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UC1903J883B Description

Short technical summary and product information.

The UC1903J883B from Texas Instruments is a quad supply and line monitor integrated circuit. This device is designed to detect under- and over-voltage conditions across up to four continuously monitored voltage levels. It features an internal inverter for sensing negative supply voltages and a line/switch sense input for early power source failure warnings.

 

The UC1903J883B offers programmable under- and over-voltage fault thresholds with proportional hysteresis. It includes a precision 2.5-V reference and a general-purpose op-amp for auxiliary use. The IC provides three high-current, open-collector outputs that indicate over-voltage, under-voltage, and power OK conditions. It supports supply operation from 8-V to 40-V with a typical standby current of 7 mA.

 

This component is suitable for applications requiring robust power supply monitoring. It is available in LCCC (FK) and CDIP (J) packages, with an operating temperature range of -55°C to 125°C. The active-low, open-drain reset output makes it compatible with various system designs.

UC1903J883B Quick Information

Product Type: Quad Supply and Line Monitor
Canonical Name: UC1903 Quad Supply and Line Monitor
Subcategory: Supply-voltage supervisors

UC1903J883B Compliance

RoHS Status: RoHS Compliant
Moisture Sensitivity Level (MSL): 1 Unlimited
REACH Status: REACH Unaffected

UC1903J883B Estimated Pricing

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1+ $37.56 $37.56

Estimated market price range - modelled values for guidance only, not live distributor offers.

UC1903J883B Features

  • Monitors up to four separate supply voltages.
  • Senses negative supply voltage with internal inverter.
  • Programmable under and over-voltage thresholds.
  • Wide 8-V to 40-V supply operation.
  • Operates from -55°C to 125°C.

UC1903J883B Applications

  • Power supply monitoring systems.
  • System reset and power sequencing.
  • Automotive applications.
  • Industrial control systems.

UC1903J883B FAQs

6 frequently asked questions generated from this part’s specifications.
How many supply voltages can the UC1903 monitor?

The UC1903 can monitor up to four separate supply voltage levels.

What is the typical threshold voltage for the UC1903?

The typical threshold voltage 1 is 1.8 V and 2.5 V, and it is adjustable.

What is the operating temperature range of the UC1903?

The operating temperature range is -55°C to 125°C.

What is the supply voltage range for the UC1903?

The device supports supply operation from 8 V to 40 V.

What is the typical standby current of the UC1903?

The typical standby current is 7 mA.

What type of reset output does the UC1903 have?

The UC1903 has an active-low, open-drain reset output.

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