XC6123C418MR-G

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PMIC - Supervisors are multi-supply integrated circuit (IC) devices which monitor multiple power supplies and provide an output signal when any of the supply voltage drops below its threshold. They provide electrical protection from voltage related events and ensure that the system works reliably over wide operating temperatures.

The XC6123C418MR-G is a supervisor IC especially designed for monitoring multiple supplies in advanced mobile systems and mid-range processor applications. It is composed of two low-voltage reset generators (RESET1 and RESET2), two high-voltage detectors (STDBY and VDD), and a window detector (EXPWDO) in one small package. It also features an inhibit input and manual reset input.

The XC6123C418MR-G is available in a space-saving SOT-23 package, making it ideal for applications with limited board space such as digital set-top boxes, mobile phones, digital cameras and other handheld devices. It can operate over an extended temperature range of -40 to +125°C.

The XC6123C418MR-G features two output modes: reset and reset pump-up. The reset output is an active low signal suitable for controlling various peripherals, while the reset pump-up output is designed to drive additional power supply rails in response to a control event. The XC6123C418MR-G also has an inhibit input that provides an easy way to power down peripherals with one pin.

The XC6123C418MR-G has both low-voltage and high-voltage detection circuits. The low-voltage detector circuit is composed of two separate reset generators (RESET1 and RESET2). The RESET1 generator monitors a voltage as low as 0.80V and generates a RESET1 signal when the monitored voltage drops below its threshold. The RESET2 generator monitors a voltage as high as 4.80V and generates a RESET2 signal when the voltage falls below its threshold. RESET1 and RESET2 can be used independently or in combination to provide early warning and safety for any supply voltage decline.

The high-voltage detection circuits include a low voltage detector (STDBY) and a high voltage detector (VDD). The STDBY detector monitors the lowest power supply and generates a signal when the supply falls below its threshold. This signal can be used to trigger the reset pump-up block and provide a more resilient reset than the low-voltage reset generator. The VDD detector tracks the highest supply and generates a signal when the supply drops below its threshold.

The XC6123C418MR-G also features an EXPWDO window detector. The window detector block compares two supply voltages and generates a signal when the two voltages enter a predetermined window. This signal can be used to detect undervoltage or overvoltage conditions.

The XC6123C18MR-G can also be used in systems that require manual or external reset. The manual reset input allows users to manually reset the supervisor IC, while the reset input allows an external signal to override the reset signals from the supervisor IC.

The XC6123C418MR-G is a highly integrated and versatile supervisor IC designed to ensure reliable system operation over wide operating temperatures. With its low-voltage and high-voltage detection circuits, manual and external reset inputs, window detector, and reset pump-up block, the XC6123C418MR-G is a perfect choice for a wide range of monitoring applications. It is especially useful for advanced mobile systems and mid-range processor applications.

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