BU4940G-TR
- Mfr.Part #
- BU4940G-TR
- Manufacturer
- ROHM Semiconductor
- Package / Case
- SC-74A, SOT-753
- Datasheet
- Download
- Description
- IC SUPERVISOR 1 CHANNEL 5SSOP
- Stock
- 1,947
- In Stock :
- 1,947
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- Manufacturer :
- ROHM Semiconductor
- Product Category :
- Supervisors
- Terminal Position :
- Dual
- Max Supply Current :
- 1.58μA
- Max Reset Threshold Voltage :
- 4.04V
- Min Supply Voltage :
- 700mV
- Supply Voltage :
- 2.4V
- Terminal Form :
- Gull wing
- Undervoltage Threshold :
- 3.96V
- Output :
- Push-Pull, Totem Pole
- Number of Voltages Monitored :
- 1
- Watchdog Timer :
- No
- Pbfree Code :
- yes
- Lead Free :
- Lead Free
- Nominal Supply Current :
- 350nA
- Voltage - Threshold :
- 4V
- Quiescent Current :
- 500nA
- Pin Count :
- 5
- Moisture Sensitivity Level (MSL) :
- 1 (Unlimited)
- Operating Supply Current :
- 550nA
- Type :
- Simple Reset/Power-On Reset
- Operating Temperature :
- -40°C~125°C TA
- Mounting Type :
- Surface Mount
- Package / Case :
- SC-74A, SOT-753
- Max Power Dissipation :
- 540mW
- Number of Functions :
- 1
- Overvoltage Threshold :
- 4.04V
- Reset :
- Active High/Active Low
- REACH SVHC :
- Unknown
- Number of Pins :
- 5
- ECCN Code :
- EAR99
- Min Reset Threshold Voltage :
- 3.96V
- Adjustable Threshold :
- No
- Packaging :
- Tape and Reel (TR)
- RoHS Status :
- ROHS3 Compliant
- Mount :
- Surface Mount
- Factory Lead Time :
- 20 Weeks
- Length :
- 2.9mm
- Published :
- 2009
- Threshold Voltage :
- +4V
- Accuracy :
- 1 %
- Base Part Number :
- BU49*
- Number of Channels :
- 1
- Number of Terminations :
- 5
- Max Supply Voltage :
- 7V
- Datasheets
- BU4940G-TR
BU4940G-TR Documents

Supervisors ROHM Semiconductor BU4940G-TR Overview
The BU4940G-TR from ROHM Semiconductor stands out as a premium voltage supervisor IC designed to ensure reliable operation in microprocessor and digital systems by monitoring power supplies. This single-channel supervisor IC, encapsulated in a compact 5SSOP package, is engineered for precision and stability, offering a vital solution for systems requiring consistent monitoring and management of their power status. Its implementation can significantly enhance system reliability by preventing improper operation during power fluctuations and startups, making it an essential component in any critical power management architecture.
BU4940G-TR Features
- Single voltage threshold level detection which ensures simplicity and effectiveness in monitoring.
- Compact 5SSOP package allows for minimal footprint and easy integration into existing designs without requiring substantial board space.
- Low power consumption which enhances the overall efficiency of the application it is used in.
- High accuracy voltage monitoring ensures that the systems operate reliably under specified power conditions.
BU4940G-TR Applications
- Consumer Electronics: Utilized in TVs, gaming consoles, and home appliances to manage power effectively and ensure device stability under various power conditions.
- Computing Devices: Integral in laptops, desktops, and servers for consistent monitoring of power supply to prevent data loss and hardware damage during unexpected power surges or drops.
- Telecommunications: Used in network routers, switches, and modems to maintain operational integrity and continuous service provision by monitoring voltage thresholds.
- Industrial Systems: Ensures robust performance in factory automation equipment, sensors, and safety systems by providing critical monitoring and control of power supplies.
- Automotive Applications: Employed in vehicle electronics to safeguard sensitive microprocessor-based systems against fluctuations in the vehicle’s power supply.
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