BD4946FVE-TR

Due to market price fluctuations, if you need to purchase or consult the price. You can contact us or emial to us:   sales@allicdata.com

The BD4946FVE-TR is a low voltage stat-up supervisor IC and part of an extensive series of protectors, regulators, and monitors produced by ROHM. It integrates a watchdog circuit, power-on reset circuit and a DCDC converter. This IC typically enables applications available in 5V and higher voltage ranges, such as smartphones, STBs, Wearables, and other media devices.

The BD4946FVE-TR operates with a wide supply range from 2.2 to 5.5V, making it a highly efficient regulator for low voltage applications. The IC provides a stable and reliable control for system protection and power monitoring. It is also designed to be used in mobile and low-power electronic products with a 1.7mA low operating current (at 3.3V, 5mV hold voltage) to save energy.

The main features of this IC include adjustable reset voltage output (2.05 to 3.6V); supply voltage monitor; deloading interrupt; adjustable watchdog timer (500ms to 2s); and thermostat output pin to control fan speed and temperature. It also provides an active discharge feature to reduce the reset voltage output.

The application fields of the BD4946FVE-TR include power supply, system protection and monitoring, power-on reset controller, clamping circuit, plus fan speed control and temperature management in consumer electronics, communications equipment, and power supplies.

The working principle of this IC is as follows: when it is used as a power-on reset controller, the reset output is triggered when the input voltage is below the reset threshold voltage for a period of time. As a watchdog circuit, it can detect the system anomalies due to errors in program execution and reset the system automatically. It can also be used as a DCDC converter. This IC regulates the input voltage to the output voltage by using an internal error amplifier and a P-channel MOSFET.

The BD4946FVE-TR is a versatile device that provides a simple, cost-effective solution for system protection, power-on reset, and DCDC converter applications. It offers adjustable reset voltage output and reliable control with wide supply voltage range and a low operating current. This IC is suitable for low voltage applications such as smartphones, STBs, Wearables and other media equipment.

The specific data is subject to PDF, and the above content is for reference