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Product Detailed Parameters
- Description：IC SUPERVISOR 1 CHANNEL 5SSOP
- Series：BD46xxx
- Mfr：Rohm Semiconductor
- Package：Tape & Reel (TR),Cut Tape (CT)
- Type：Voltage Detector
- Number of Voltages Monitored：1
- Voltage - Threshold：2.5V
- Output：Push-Pull, Totem Pole
- Reset：Active Low
- Reset Timeout：90ms Minimum
- Operating Temperature：-40°C ~ 105°C (TA)
- Mounting Type：Surface Mount
- Package / Case：SC-74A, SOT-753
- Supplier Device Package：5-SSOP
- Grade：-
- Qualification：-
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Overview
The BD46251G-TR is a CMOS voltage detector IC from ROHM Semiconductor, housed in an SSOP-5 surface-mount package. It features a fixed detection threshold of 2.5 V with ±1% precision and a manual reset capability. The device operates within a supply voltage range of 0.95 V to 10 V and includes a fixed 100 ms reset delay timer. It supports a low quiescent current of 800 nA (typical) at Vdet=4.8V and functions across an industrial temperature range of -40°C to +105°C.
Feature Summary
- Manual reset functionality allows external control over the reset state.
- Fixed delay timer ensures consistent reset timing without external components.
- Low current consumption design optimizes power efficiency in battery-operated systems.
Applications
- Microprocessor system supervision
- Battery-powered portable devices
- Industrial control circuit monitoring
Procurement Notes
Verify component authenticity through authorized channels due to end-of-life status. Confirm RoHS compliance and packaging specifications against original datasheets. Check for obsolescence notices or last-time-buy deadlines from ROHM Semiconductor before finalizing procurement plans.
Selection Notes
Select this component when a fixed 2.5 V threshold and manual reset are required. Ensure the application voltage stays within the 0.95 V to 10 V operating range. Consider the 100 ms delay for system startup stability. Verify thermal requirements fit the -40°C to +105°C specification.
Part Context
Part of the BD46 series voltage detectors designed for general-purpose and automotive applications. It provides reliable supervision for digital logic circuits. The SSOP-5 package offers compact footprint solutions for space-constrained designs requiring precise voltage monitoring.
Replacement Considerations
BD5225G-1 is listed as a similar level replacement with the same package. Verify electrical parameters and pin compatibility before substitution. Check availability and lead times for alternative sources if BD46251G-TR is discontinued.
