UC3903Q
- Mfr.Part #
- UC3903Q
- Manufacturer
- Texas Instruments
- Package / Case
- 20-LCC (J-Lead)
- Datasheet
- Download
- Description
- IC SUPERVISOR 4 CHANNEL 20PLCC
- Stock
- 41,211
- In Stock :
- 41,211
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- Manufacturer :
- Texas Instruments
- Product Category :
- Supervisors
- Thickness :
- 4.06mm
- JESD-609 Code :
- e3
- Power Dissipation :
- 1W
- Package / Case :
- 20-LCC (J-Lead)
- Type :
- Multi-Voltage Supervisor
- Quiescent Current :
- 7mA
- Moisture Sensitivity Level (MSL) :
- 2 (1 Year)
- Terminal Position :
- QUAD
- Adjustable Threshold :
- yes
- Peak Reflow Temperature (Cel) :
- 260
- Reset :
- Active Low
- Pin Count :
- 20
- Number of Functions :
- 1
- Number of Voltages Monitored :
- 4
- Min Supply Voltage :
- 8V
- Number of Channels :
- 4
- Terminal Form :
- J BEND
- Width :
- 8.96mm
- Terminal Finish :
- Matte Tin (Sn)
- Lead Free :
- Lead Free
- Packaging :
- Tube
- Reset Timeout :
- Adjustable/Selectable
- Height :
- 4.57mm
- Operating Temperature :
- 0°C~70°C TA
- RoHS Status :
- ROHS3 Compliant
- Number of Terminations :
- 20
- Base Part Number :
- UC3903
- Max Supply Current :
- 18mA
- Watchdog Timer :
- No
- Operating Supply Current :
- 7mA
- ECCN Code :
- EAR99
- Output :
- Open Drain or Open Collector
- Surface Mount :
- yes
- Number of Pins :
- 20
- Mounting Type :
- Surface Mount
- Max Power Dissipation :
- 1W
- Max Supply Voltage :
- 40V
- Terminal Pitch :
- 1.27mm
- Length :
- 8.96mm
- Supply Voltage :
- 15V
- Datasheets
- UC3903Q

Supervisors Texas Instruments UC3903Q Overview
The Supervisors Texas Instruments UC3903Q is a highly reliable integrated circuit specifically designed to monitor and manage system conditions across multiple channels. This IC supervisor ensures optimal performance and system integrity by providing key supervisory functions that are crucial for maintaining the safety and efficiency of electronic systems. Ideal for demanding applications where multiple voltage thresholds and system states need to be monitored simultaneously, the UC3903Q enhances system reliability through precise control and robust design.
UC3903Q Features
The UC3903Q from Texas Instruments boasts a multitude of features that make it an indispensable component in any supervisory circuit. It offers four independent supervisor channels, each capable of monitoring different voltage levels or conditions. The device is housed in a compact 20PLCC package, making it suitable for space-constrained applications. Additionally, its wide operating temperature range ensures reliability under varying environmental conditions, making it versatile for a broad spectrum of industrial applications.
UC3903Q Applications
- Power Supply Monitoring: The UC3903Q can continuously monitor multiple power supply outputs, ensuring that all system voltages remain within specified thresholds to prevent damage due to voltage fluctuations.
- Automotive Systems: In automotive electronics, the UC3903Q helps in monitoring critical system parameters, enhancing vehicle safety and performance by ensuring that subsystems operate within safe limits.
- Data Center Infrastructure: This IC can be used to supervise server power supplies, maintaining system stability and preventing failures that could lead to data loss or service interruptions.
- Telecommunication Equipment: The UC3903Q ensures the reliability of telecom equipment by monitoring voltage levels and other critical parameters, thus supporting continuous communication services without interruption.
- Medical Devices: Reliable and accurate monitoring of power and system conditions is crucial in medical devices, where the UC3903Q ensures operational safety and effectiveness.
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