TPS3705-33DR

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The TPS3705-33DR is a 3.3V supervisors with active low reset and adjustable delay. It is a type of Power Management Integrated Circuit (PMIC) - Supervisors, specifically intended for monitoring power supply (3V3) outputs. It integrates a power supply supervisor and reset controller and has a wide variety of applications, making it an ideal choice when a reliable and secure power supply is required.

Features of TPS3705-33DR

Some of the key features of TPS3705-33DR are:

• In-built reset controller - it is an active-low reset and can be used to trigger an external reset device such as a switch or relay.
• Adjustable reset delay - it has an adjustable reset delay of up to 15 seconds, allowing for a variety of applications.
• Wide operating voltage range - it can operate from 2.5V to 5.5V.
• Low quiescent current - it takes only 8µA quiescent current.
• Space saving - it occupies minimal space on the PCB.
• Low power consumption - it consumes only 2µA.

Applications of TPS3705-33DR

The TPS3705-33DR can be used in a variety of applications, including:

• Power-on reset and watchdog in embedded systems.
• Battery management in portable and wireless applications.
• Charging and monitoring system voltage.
• Monitoring the health of power supplies.
• Battery backed power-on reset.
• Telecommunications and computing devices.
• Automotive and industrial control applications.
• Low-power embedded designs.

Working Principle of TPS3705-33DR

The TPS3705-33DR is an active low reset and adjustable delay supervisor with an inbuilt reset controller. It works by monitoring the supply voltage of the system and triggering a reset signal when the voltage falls below the specified threshold. This reset signal is typically used to trigger an external reset device such as a switch or relay. The adjustable reset delay feature of the TPS3705-33DR allows the user to set the reset delay time up to 15 seconds.

The TPS3705-33DR also features a low-power shutdown mode, which disables the reset output to conserve power. This feature is especially useful in low-power applications, where power-saving is a priority.

Conclusion

The TPS3705-33DR is a 3.3V supervisors with active low reset and adjustable delay that integrates a power supply supervisor and reset controller. It is ideal for battery management in portable and wireless applications. It has a wide operating voltage range, low quiescent current and low power consumption. Additionally, it has an adjustable reset delay of up to 15 seconds, making it perfect for power-on reset and watchdog applications. In conclusion, the TPS3705-33DR is an ideal choice when a reliable and secure power supply is required.

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