| Allicdata Part #: | BD4744GTR-ND |
| Manufacturer Part#: |
BD4744G-TR |
| Price: | $ 0.00 |
| Product Category: | Integrated Circuits (ICs) |
| Manufacturer: | ROHM Semiconductor |
| Short Description: | IC RESET CPU BIPOLAR 4.4V 5SSOP |
| More Detail: | Supervisor Open Drain or Open Collector 1 Channel ... |
| DataSheet: |  BD4744G-TR Datasheet/PDF |
| Quantity: | 1000 |
Specifications
| Series: | BD47xx |
| Packaging: | Tape & Reel (TR) |
| Part Status: | Active |
| Type: | Voltage Detector |
| Number of Voltages Monitored: | 1 |
| Output: | Open Drain or Open Collector |
| Reset: | Active Low |
| Reset Timeout: | -- |
| Voltage - Threshold: | 4.4V |
| Operating Temperature: | -40°C ~ 75°C (TA) |
| Mounting Type: | Surface Mount |
| Package / Case: | SC-74A, SOT-753 |
| Supplier Device Package: | 5-SSOP |
| Base Part Number: | BD47 |
Description
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BD4744G-TR is a supervisor product of subsidiary, Sanken Electric Co., Ltd. It is classified under PMIC - Supervisors. The BD4744G-TR, is a microprocessor supervisor which provides all of the functions needed to protect microprocessors using single-chip microcontrollers from reset, overvoltage and undervoltage faults. It offers a reset signal output upon detecting power-on, low-voltage, overcurrent and overvoltage, and it also offers a monitoring output for two or three system supply voltages. This supervisor IC is an ideal device for use in power supply systems and microprocessor-based systems.
Application Field
The BD4744G-TR is suitable for various types of applications such as personal computers, peripheral devices, industrial systems, and communication systems. It can be used to monitor 5V power supply lines, as well as other voltage supplies. It is also suitable for use in CPU and ASIC systems where precision supply monitoring and reset control is necessary.Features
The BD4744G-TR has a number of features that make it ideal for today’s applications. These include:- Wide monitoring voltage range: 4.5V to 5.5V
- Low-noise supply voltage detection
- Overvoltage, undervoltage and overcurrent protection
- 3.3V output to be used as voltage source for Reset or VDD_OUT
- Power-ON reset circuit
- Adjustable delay reset time
- Reset signal output and monitoring signal output
- 3-state or 2-state operation for RESET or VDD_OUT signal mode
- Low-voltage power-down reset circuit enabled
Working Principle
The BD4744G-TR is designed to generate a reset signal output under the following conditions: when the power is turned on (power-on reset), when the power supply voltage drops (under-voltage detection), and when the power supply voltage is over the specified threshold (over-voltage detection). The reset signal will remain active until the power supply voltage is stabilized, and then it will be de-asserted. The BD4744G-TR can also monitor two or three power supply voltages and generate a monitoring output when the voltage exceeds the specified threshold.The output reset signal, RESET or VDD_OUT, can be set to 3-state or 2-state operation. In 3-state mode, the output is in a high impedance state when the power is off and when the power supply voltage is unstable. In 2-state mode, the output is held in either high or low state instead of the high impedance state.When the power supply voltage is lower than the specified threshold, the low-voltage power-down reset circuit is enabled. This circuit generates a reset signal up to a certain period of time when the power supply voltage is below the specified level.Conclusion
The BD4744G-TR is a supervisor product that provides a reset signal output upon detecting power-on, low-voltage, overcurrent and overvoltage conditions. It offers adjustable delay reset time, 3-state or 2-state operation mode and low-voltage power-down reset circuit. This IC is suitable for use in a variety of applications such as personal computers, peripheral devices, industrial systems, and communication systems.The specific data is subject to PDF, and the above content is for reference
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|---|
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