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5 pcs
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5 pcs | On Request | 1 | On Request | On Request | On Request | On Request | On Request |
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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.
| Qty | Low | High |
|---|---|---|
| 1+ | $37.56 | $37.56 |
Estimated market price range - modelled values for guidance only, not live distributor offers.
The UC1903 can monitor up to four separate supply voltage levels.
The typical threshold voltage 1 is 1.8 V and 2.5 V, and it is adjustable.
The operating temperature range is -55°C to 125°C.
The device supports supply operation from 8 V to 40 V.
The typical standby current is 7 mA.
The UC1903 has an active-low, open-drain reset output.