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UC2903N The Texas Instruments UC2903N is a Quad Supply and Line Monitor IC designed for monitoring up to four separate supply voltage levels. It operates from 8V to 40V.
Mfr Part #:

UC2903N

Available from 1 distributors
Mfr Name: Texas Instruments
Texas Instruments
The Texas Instruments UC2903N is a Quad Supply and Line Monitor IC designed for monitoring up to four separate supply voltage levels. It operates from 8V to 40V.
✓ Total Stock: 2,568 pcs
$ Price Range: $0.75

UC2903N Available from 1 distributor

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✓ Non-Authorised
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Components Technology Group, Inc. ✓
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2,568 pcs
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2568 pcs On Request 1 On Request On Request On Request On Request On Request
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UC2903N Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
Manufacturer Name
Lead Spacing
Lead Style
Mounting Type
Number of Voltages Monitored
Operating Temperature
Output
Output Current
Reset
Reset Timeout
SVHC Present
Supplier Device Package
Supplier Package
Type
Voltage
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UC2903N Description

Short technical summary and product information.

The UC2903N from Texas Instruments is an integrated circuit designed for monitoring up to four separate supply voltage levels. This quad supply and line monitor responds to under- and over-voltage conditions on continuously monitored voltage levels, allowing at least one of these levels to be negative due to an internal op-amp inverter.

 

Key features include programmable under- and over-voltage fault thresholds with proportional hysteresis, a precision 2.5-V reference, and a separate line/switcher sense input for early power source failure warning. The device operates over a supply voltage range of 8V to 40V with a typical stand-by current of 7 mA. It provides three high-current (>30 mA) open-collector outputs that indicate over-voltage, under-voltage, and power OK conditions.

 

The UC2903N is available in an 18-PDIP package and is suitable for through-hole mounting. Its operating temperature range is -40°C to 85°C (TA). The device offers adjustable or selectable reset and voltage thresholds, making it versatile for various power monitoring applications.

UC2903N Quick Information

Product Type: Quad Supply and Line Monitor IC
Canonical Name: UC2903N Quad Supply and Line Monitor IC
Subcategory: Power Management

UC2903N Compliance

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

UC2903N Estimated Pricing

Qty Low High
1+ $0.75 $0.75

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

UC2903N Features

  • Monitors up to four separate voltage levels.
  • Operates from 8V to 40V supply voltage.
  • Programmable under/over-voltage thresholds.
  • Three high-current open-collector outputs.
  • Precision 2.5V reference included.

UC2903N Applications

  • Monitors multiple power supply rails.
  • Provides early power source failure warning.
  • Used in systems requiring voltage supervision.
  • Suitable for adjustable voltage monitoring.

UC2903N FAQs

7 frequently asked questions generated from this part’s specifications.
What is the supply voltage range of the UC2903N?

The UC2903N operates from 8V to 40V.

What package does the UC2903N come in?

The UC2903N is available in an 18-PDIP (0.300", 7.62mm) through-hole package.

What is the operating temperature range of the UC2903N?

The operating temperature range is -40°C to 85°C.

How many voltage channels does the UC2903N monitor?

The UC2903N monitors 4 voltage channels.

What type of output does the UC2903N have?

The outputs are open drain or open collector.

What is the reset polarity of the UC2903N?

The reset is active low.

What is the typical quiescent current of the UC2903N?

The typical stand-by current is 7mA.

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