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UC2903DWTR ACTIVE

-40°C to +85°C, quad-supply & Line monitor

ACTIVE custom-reels CUSTOM Custom reel may be available
Inventory:

Pricing

Qty Price (USD)
1-99 5.875
100-249 4.79
250-999 3.765
1,000+ 3.193

Additional package qty | Carrier options info-circle

Package qty | Carrier 40 | TUBE
Inventory
Qty | Price (USD) 1ku | 3.725 1-99 6.854 100-249 5.588 250-999 4.392 1,000+ 3.725

Quality information

RoHS Yes
REACH Yes
Lead finish / Ball material NIPDAU
MSL rating / Peak reflow Level-2-260C-1 YEAR
Quality, reliability
& packaging information info-circle

Information included:

  • RoHS
  • REACH
  • Device marking
  • Lead finish/Ball material
  • MSL rating/Peak reflow
  • MTBF/FIT estimates
  • Material content
  • Qualification summary
  • Ongoing reliability monitoring
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Export classification

*For reference only

  • US ECCN: EAR99

Packaging information

Package | Pins SOIC (DW) | 18
Package qty | Carrier: 2,000 | LARGE T&R
Operating temperature range (°C) -40 to 85
View TI packaging information

Features for the UC2903

  • Inputs for Monitoring up to FourSeparate Supply Voltage Levels
  • Internal Inverter for Sensing a Negative Supply Voltage
  • Line/Switch Sense Input for Early Power Source Failure Warning
  • Programmable Under- and Over-Voltage Fault Thresholds with Proportional Hysteresis
  • A Precision 2.5-V Reference
  • General Purpose Op-Amp for Auxiliary Use
  • Three High Current, >3 0mA, Open-Collector Outputs Indicate Over-Voltage, Under-Voltage and Power OK Conditions
  • 8-V to 40-V Supply Operation with 7-mA Stand-By Current

Description for the UC2903

The UC1903 family of quad supply and line monitor integrated circuits will respondto under- and over-voltage conditions on up to four continuously monitored voltage levels. An internal op-amp inverter allows at least one of these levels to be negative. A separate line/switcher sense input is available to provide early warning of line or other power source failures.

The fault window adjustment circuit on these devices provides easy programming of under- and over-voltage thresholds. The thresholds, centered around a precision 2.5-V reference, have an input hysteresis that scales with the window width for precise, glitch-free operation. A reference output pin allows the sense input fault windows to be scaled independently using simple resistive dividers.

The three open collector outputs on these devices sink in excess of 30 mA of load current when active. The under- and over-voltage outputs respond after separate, user defined, delays to respective fault conditions. The third output is active during any fault condition including under- and over-voltage, line/switcher faults, and input supply under-voltage. The off state of this output indicates a power OK situation.

An additional, uncommitted, general purpose op-amp is also included. This op-amp, capable of sourcing 20 mA of output current, can be used for a number of auxiliary functions including the sensing and amplification of a feedback error signal when the 2.5-V output is used as a system reference.

These parts operate over an 8-V to 40-V input supply range and require a typical stand-by current of only 7 mA.

Inventory:

Pricing

Qty Price (USD)
1-99 5.875
100-249 4.79
250-999 3.765
1,000+ 3.193

Additional package qty | Carrier options info-circle

Package qty | Carrier 40 | TUBE
Inventory
Qty | Price (USD) 1ku | 3.725 1-99 6.854 100-249 5.588 250-999 4.392 1,000+ 3.725

Carrier options

You can choose different carrier options based on the quantity of parts, including full reel, custom reel, cut tape, tube or tray.

custom reel is a continuous length of cut tape from one reel to maintain lot- and date-code traceability, built to the exact quantity requested. Following industry standards, a brass shim connects an 18-inch leader and trailer on both sides of the cut tape for direct feeding into automated assembly machines. TI includes a reeling fee for custom reel orders.

Cut tape is a length of tape cut from a reel. TI may fulfill orders using multiple strips of cut tapes or boxes to satisfy the quantity requested.

TI often ships  tube or tray  devices inside a box or in the tube or tray, depending on inventory availability. We pack all tapes, tubes or sample boxes according to internal electrostatic discharge and moisture-sensitivity-level protection requirements.

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Lot and date code selection may be available

Add a quantity to your cart and begin the checkout process to view the options available to select lot or date codes from existing inventory.

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