DS1812-10+T&R Integrated Circuits (ICs)

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In recent years, the modern semiconductor industry is moving towards the development of a comprehensive automotive power management platform. Typical components of such a platform include voltage regulators, Supervisors, and hybrid ICs. In the power management industry, Supervisors play an important role. Today, we will introduce a power Supervisor IC, DS1812-10+T&R, designed for automotive applications.

The DS1812 is a high precision power Supervisor IC developed by Diodes Incorporated. It is designed for automotive applications, such as airbag systems, ECU power supplies, body control modules, and side air curtain systems, providing high accuracy voltage threshold detection, reliable power-on reset, and undervoltage lockout. The power on reset (POR) function ensures that the MCU-powered system comes on correctly after it is initially powered on and protects against system lock-up when the power supply voltage drops below the threshold that is acceptable for safe system operation.

DS1812-10+T&R is an 8-pin SSOP package with a small footprint. It has a typical operating current of 5μA and is specified to operate over the -40℃ to 150℃ temperature range, making it suitable for harsh automotive environments. The reset voltage range is adjustable from 2.2V to 5.5V and the threshold accuracy is ±1.0%, and the reset state is active low. In addition, the delay time of the reset can reach 280ms.

The working principle of DS1812-10+T&R can be described as follows: the power supply voltage is monitored by the Supervisor through its input pin, and when the power supply voltage drops to the preset voltage, the Supervisor will output a reset signal (active low), which controls the MCU reset to restart the system, thus ensuring that the system can operate normally despite changes in power supply voltage.

In conclusion, the DS1812-10+T&R is an ideal power Supervisor IC for automotive applications. Its power supervision accuracy, high temperature operation, small footprint, low power consumption, and adjustable reset voltage make it the ideal choice for power supervision in a variety of automotive applications.

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