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Product Detailed Parameters
- Description：IC SUPERVISOR 1 CHANNEL 3SSOP
- Series：BD49Lxx
- Mfr：Rohm Semiconductor
- Package：Tape & Reel (TR),Cut Tape (CT)
- Type：Voltage Detector
- Number of Voltages Monitored：1
- Voltage - Threshold：4.2V
- Output：Push-Pull, Totem Pole
- Reset：Active Low
- Reset Timeout：-
- Operating Temperature：-40°C ~ 105°C (TA)
- Mounting Type：Surface Mount
- Package / Case：TO-236-3, SC-59, SOT-23-3
- Supplier Device Package：3-SSOP
- Grade：-
- Qualification：-
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Overview
The BD49L42G-TL is a CMOS voltage detector IC manufactured by ROHM Semiconductor, designed for monitoring power supply voltages. It features a fixed detection threshold of 4.2V and operates within a maximum supply voltage range of up to 10V. The device provides an active-low output signal compatible with standard logic families. It is housed in a compact SSOP-3 surface-mount package, suitable for space-constrained applications. The component is currently listed as obsolete or end-of-life.
Feature Summary
- CMOS output interface for direct logic compatibility
- Fixed voltage detection threshold at 4.2V
- Compact three-pin SSOP surface-mount packaging
Applications
- Processor reset circuitry
- Battery voltage monitoring
- Power supply supervision
Procurement Notes
Verify the current lifecycle status before integration, as this part is marked as obsolete. Confirm availability through authorized distributors or secondary markets. Ensure the SSOP-3 footprint matches the design layout. Check for moisture sensitivity levels if storage conditions are uncertain. Validate that the 4.2V threshold meets system requirements.
Selection Notes
Select this component when a fixed 4.2V detection point is required with minimal external components. The CMOS output simplifies interfacing with digital controllers. Consider the SSOP-3 package size for board space limitations. Evaluate the operating temperature range against environmental conditions. Compare against newer series if long-term supply stability is critical.
Part Context
This device belongs to the BD49L series of voltage detectors from ROHM. These ICs are engineered for low-power monitoring tasks in portable and industrial electronics. The series typically offers high accuracy and low standby current consumption. The BD49L42G-TL specifically targets applications requiring precise voltage supervision without complex configuration.
FAQ
What is the output type of the BD49L42G-TL?
The BD49L42G-TL features a CMOS output type.
What is the detection voltage threshold?
The fixed detection voltage threshold is 4.2V.
