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Product Detailed Parameters
- Description：IC DETECTOR VOLT 3.9V ODRN 5SSOP
- Series：BD52xx
- Mfr：Rohm Semiconductor
- Package：Tape & Reel (TR),Cut Tape (CT),Cut Tape (CT)
- Type：Voltage Detector
- Number of Voltages Monitored：1
- Voltage - Threshold：3.9V
- Output：Open Drain or Open Collector
- Reset：Active Low
- Reset Timeout：-
- 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 BD5239G-TR is a CMOS voltage detector manufactured by ROHM Semiconductor, designed for monitoring single-channel power supply voltages. It features an adjustable reset delay timer and an open-drain output type. The device operates within a supply voltage range of 0.95 V to 10 V and provides a typical under-voltage detection threshold of 3.9 V with ±1% accuracy. It supports a wide operating temperature range from -40°C to +105°C and is housed in an SSOP-5 package.
Feature Summary
- Adjustable reset delay time via external components
- High precision voltage detection with low current consumption
- Open-drain output compatible with various logic levels
Applications
- Microprocessor system reset circuits
- Battery-powered device supervision
- Portable equipment power management
Procurement Notes
Verify the Not Recommended for New Designs (NRND) status before procurement. Confirm that the SSOP-5 package and 3.9V threshold meet specific design requirements. Ensure compatibility with existing PCB layouts as this component may be phased out in favor of newer series like the BD5239G-1.
Selection Notes
Select this component when an adjustable delay timer is required for stable reset generation. The open-drain output allows for flexible interfacing with different logic families. Consider the NRND status and evaluate replacement options if long-term supply stability is critical for the product lifecycle.
Part Context
This part belongs to the BD52xx series of voltage detectors from ROHM. These ICs utilize CMOS processes to achieve low power consumption and high accuracy. The BD5239G-TR specifically offers a 3.9V detection threshold, distinguishing it from other variants in the series with different voltage levels or fixed delay characteristics.
Replacement Considerations
The BD5239G-1 is a recommended alternative with the same pinout and package. It offers improved precision (±0.9%) and a wider reset active voltage range (0.8V to 6V). Verify electrical parameter compatibility before substitution.
