LTC2903IS6-A1#TRMPBF

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The LTC2903IS6-A1#TRMPBF is a dual supervisor device that provides optimum power management in applications requiring one to two power supplies. It is a member of the family of very low-power, microcomponent PMIC¹ Supervisors.

Application Field

The LTC2903IS6-A1#TRMPBF can be used for a broad range of applications where power management and voltage supervision are required. These include:

• Embedded systems
• Medical devices
• Industrial controls
• Consumer electronics

In embedded systems, the LTC2903IS6-A1#TRMPBF can be used to monitor multiple power rails. In addition, it can provide reliable power management functions such as low-voltage and over-voltage reset, power-up and power-down sequencing, and watchdog timer functions.

In medical devices, the LTC2903IS6-A1#TRMPBF can be used to monitor the input and output voltages of the device’s power supply, and to protect against over-voltage or under-voltage conditions. It can also be used to serve as a warning indicator if the monitored voltage thresholds are exceeded.

In industrial controls, the LTC2903IS6-A1#TRMPBF can be used to monitor multiple dedicated rails and provide a reliable power-on and power-off sequence for control of the system. It can also serve as a watchdog timer to monitor the system’s power-on status.

In consumer electronics, the LTC2903IS6-A1#TRMPBF can be used to monitor the power rails of the device, and to protect against over-voltage or under-voltage conditions. It can also be used to provide a warning indication in case of a voltage threshold violation, warning users of potential damage to the device.

Working Principle

At its core, the LTC2903IS6-A1#TRMPBF is a power-management IC that provides a single-chip solution for power-supply monitoring and supervision. It features two low-voltage and two high-voltage power supply monitoring channels. The device monitors the voltage levels on the input supply rails and provides continuous supervision of the inputs. It detects under-voltage and over-voltage conditions and takes actions based on user-programmable settings. It can also be used to generate warnings when the input voltage thresholds are exceeded. The device\'s power-on-reset and power-down-reset ±10% accuracy threshold detectors protect the system against power-supply faults.

The LTC2903IS6-A1#TRMPBF also provides flexible output flags, which can be configured to generate a logic-high output when either a low-voltage or a high-voltage condition is detected. The output flags can be used to conditionally disable system components, trigger a system reset or interrupt, or indicate a warning to the system controller when an abnormal voltage condition has been detected.

Finally, the LTC2903IS6-A1#TRMPBF also features a watchdog timer that keeps track of the system\'s supply-power-on status. It can be used to generate a reset or interrupt if the system stops responding to the watchdog timer.

Conclusion

The LTC2903IS6-A1#TRMPBF is a dual supervisor device that provides reliable power management and voltage supervision for embedded, medical, industrial, and consumer electronic devices. It monitors multiple power rails and provides continuous supervision of the inputs. It provides flexible output flags, and also includes a watchdog timer to monitor the system’s supply-power-on status.

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