BU4938F-TR
- Mfr.Part #
- BU4938F-TR
- Manufacturer
- ROHM Semiconductor
- Package / Case
- SC-82
- Datasheet
- Download
- Description
- IC SUPERVISOR 1 CHANNEL 4SOP
- Stock
- 2,940
- In Stock :
- 2,940
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- Manufacturer :
- ROHM Semiconductor
- Product Category :
- Supervisors
- Base Part Number :
- BU4938
- Min Reset Threshold Voltage :
- 3.762V
- Undervoltage Threshold :
- 3.762V
- Factory Lead Time :
- 7 Weeks
- Package / Case :
- SC-82
- Number of Terminations :
- 4
- Power Supplies :
- 2.5/5V
- Overvoltage Threshold :
- 3.838V
- Pbfree Code :
- yes
- Max Supply Voltage :
- 7V
- Max Reset Threshold Voltage :
- 3.838V
- ECCN Code :
- EAR99
- Output :
- Push-Pull, Totem Pole
- Mounting Type :
- Surface Mount
- Length :
- 2mm
- Packaging :
- Tape and Reel (TR)
- Operating Supply Current :
- 550nA
- Threshold Voltage :
- +3.8V
- Operating Temperature :
- -40°C~125°C TA
- Mount :
- Surface Mount
- Number of Functions :
- 1
- Published :
- 2009
- Type :
- Simple Reset/Power-On Reset
- Moisture Sensitivity Level (MSL) :
- 1 (Unlimited)
- Min Supply Voltage :
- 700mV
- Number of Pins :
- 4
- Lead Free :
- Lead Free
- Accuracy :
- 1 %
- Terminal Position :
- Dual
- RoHS Status :
- ROHS3 Compliant
- Pin Count :
- 4
- Supply Voltage :
- 2.4V
- Max Supply Current :
- 1.58μA
- Quiescent Current :
- 500nA
- Adjustable Threshold :
- No
- Number of Voltages Monitored :
- 1
- Max Power Dissipation :
- 400mW
- Voltage - Threshold :
- 3.8V
- Terminal Form :
- Gull wing
- Reset :
- Active High/Active Low
- Watchdog Timer :
- No
- Number of Channels :
- 1
- Datasheets
- BU4938F-TR
BU4938F-TR Documents

Supervisors ROHM Semiconductor BU4938F-TR Overview
The ROHM Semiconductor BU4938F-TR is a state-of-the-art Supervisory IC designed to ensure reliable operation of microprocessors and other sensitive electronic systems. This IC is specially crafted to monitor the system voltage and automatically reset the system when necessary, preventing system failures and data corruption. The BU4938F-TR, housed in a compact 4SOP package, offers precision voltage monitoring suitable for high-density applications where space is at a premium. Its robust design and advanced functionality make it ideal for meeting stringent requirements of modern electronic systems, ensuring both safety and efficiency in operations. This Supervisory IC from ROHM Semiconductor is an essential component for developers looking to enhance system reliability and performance.
BU4938F-TR Features
The BU4938F-TR IC features include a precise voltage monitoring capability, a manual reset input, and low power consumption. Its compact 4SOP package allows for easy integration into system designs without compromising on reliability. Additionally, the IC's wide operating temperature range ensures performance stability in various environmental conditions.
BU4938F-TR Applications
- Computing Systems: Ensures stable operation and prevents system crashes by monitoring and resetting the CPU in personal computers and servers when voltage drops below a critical threshold.
- Consumer Electronics: Provides voltage supervision in devices like smartphones and gaming consoles, enhancing device reliability and user experience by preventing unexpected shutdowns and data loss.
- Industrial Equipment: Critical in monitoring systems in factory automation and control systems, where precise voltage levels are essential for maintaining operational accuracy and safety.
- Automotive Systems: Utilized in automotive electronics to monitor and control system voltages, crucial for ensuring the proper functioning of safety-critical systems under variable voltage conditions.
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