BD5347G-TR

Series:	--
Packaging:	Tape & Reel (TR)
Part Status:	Active
Type:	Simple Reset/Power-On Reset
Number of Voltages Monitored:	1
Output:	Push-Pull, Totem Pole
Reset:	Active Low
Reset Timeout:	--
Voltage - Threshold:	4.7V
Operating Temperature:	-40°C ~ 105°C (TA)
Mounting Type:	Surface Mount
Package / Case:	SC-74A, SOT-753
Supplier Device Package:	5-SSOP
Base Part Number:	BD53

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Introduction

BD5347G-TR is a low-voltage supervisor integrated circuit that can be used to monitor the power supply of various electronic devices. It is designed and produced by Rohm Co., Ltd., and belongs to the family of Power Management IC (PMIC) supervisors. Its features and functions make it suitable for a number of different applications.

Features and Benefits

The most notable feature of the BD5347G-TR is its low-voltage supervisor capability. It can be used to monitor the power supply of a variety of different devices, from consumer products to high-end industrial systems. Other features include Brown Out Detection (BOD), which provides protection in the event of a sudden or gradual power loss, and a Power Save mode which reduces power consumption when the device is in standby or power down mode. This supervisor chip also has a reset delay time of up to 180 seconds, which allows the device to remain in operation even when the power supply is momentarily unstable.Other benefits of the BD5347G-TR include its low standby current consumption, which maximizes power savings when the device is in standby or power down mode. It is also designed with an integrated watch-dog timer, allowing the device to reset itself in the event of a monitored event. The chip also has an integrated over-temperature detection circuit, which helps prevent any damage to the device in the event of a sudden increase in temperature. The BD5347G-TR is supplied in a space-saving 8-pin QSOP package, making it ideal for applications with limited space requirements.

Application Fields

The BD5347G-TR is suitable for a wide range of applications, from consumer products to industrial systems. In consumer products, such as DVD players, the chip can be used as a power supply supervisor, monitoring the power supply to ensure it remains within the acceptable range for safe operation. In industrial systems, such as solar inverters and voltage sensors, the chip can be used to monitor the power supply, ensuring it remains within the set operating parameters.Apart from consumer and industrial applications, the BD5347G-TR is also suitable for use in automotive and medical systems. In automotive systems, the chip can be used to monitor the vehicle’s battery voltage and provide protection against over-current and over-temperature. In medical systems, such as drug infusion pumps, the chip can be used to monitor the power supply and ensure a stable supply of power.

Working Principle

The BD5347G-TR works by continuously monitoring the power supply voltage to identify any sudden or gradual changes in voltage levels. It then takes appropriate action in response to the detected changes. For example, if the voltage suddenly falls outside the normal operating range, the chip will respond by triggering the Brown Out Detection (BOD) function, which shuts down the device until the voltage returns to an acceptable level.The chip also has an integrated watchdog timer, which monitors the device for reset or power loss, and will reset the device if the timer has been running for longer than the set limit. Additionally, the chip has an over-temperature detection function, which detects any sudden increases in temperature and shuts down the device to protect it from damage.

Conclusion

The BD5347G-TR is an advanced low-voltage supervisor integrated circuit designed and produced by Rohm Co., Ltd. It is suitable for a wide range of applications, from consumer products to industrial systems, and offers a number of benefits, including a low standby current consumption, integrated watch-dog timer, over-temperature detection, and Brown Out Detection (BOD) function. The chip works by monitoring the power supply voltage to detect any sudden or gradual changes and respond accordingly.

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