TPS3702CX10QDDCRQ1

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TPS3702CX10QDDCRQ1 Application Field and Working Principle

The TPS3702CX10QDDCRQ1 is a low-cost high-accuracy supervisor solution, ideal for high-level microprocessor (MPU) or microcontroller (MCU) applications. It is highly integrated with various features and provides the required reset and supervision flexibility for most applications. It is part of Texas Instrument\'s robust Power Management IC (PMIC) Supervisors family.

Features

• Low-cost
• High accuracy
• Wide voltage range (1.14V ~ 5.5V)
• Manual reset input
• Over-voltage supervisor
• Low-voltage supervisor
• Fault indicator (or push/pull reset)
• Active-low open-drain Reset output
• Active-high push/pull Reset output
• External resistor divider
• Small size (8-Pin VSSOP and 5-Pin SC70)

Application Fields

The TPS3702CX10QDDCRQ1 is suitable for many applications, ranging from embedded processors and microcontrollers, to audio amplifiers and signal processors. It is also well-suited for use in automotive, industrial and consumer device applications, where some kind of monitoring and reset signal is necessary to ensure reliable operation. In particular, the TPS3702CX10QDDCRQ1 is a good fit for:

• Motor control systems
• Smartphones and tablets
• Security systems
• Medical applications
• Automotive controllers
• Portable consumer devices
• Battery-powered designs

Working Principle

The TPS3702CX10QDDCRQ1 is a single-mask device that implements a number of different functions. On the logic side, a reset signal is supplied, usually when the power supply voltage exceeds a set voltage or rises too quickly. An independent fault indicator pin, an active high push/pull reset output and an active low open drain reset output, are available. The supervisor operates from a 1.14V to 5.5V supply voltage and uses an external resistor divider to monitor the input voltage. The TPS3702CX10QDDCRQ1 also includes a watchdog timer, which must be cleared within a certain time period or else it will cause a reset, and can be set to trigger a reset when the current consumption is too high.

The TPS3702CX10QDDCRQ1 also includes an overvoltage supervisor and low-voltage supervisor. When the input voltage exceeds the overvoltage supervisor limit, a reset is triggered. When the input voltage falls below the low-voltage supervisor limit, a reset is also triggered. The device can be set up to trigger a reset based on different combinations of supplies and signals.

The TPS3702CX10QDDCRQ1 is designed to meet all the performance parameters necessary for reliable operation. It provides tight voltage regulation at the output to maintain a stable power supply for the processor and other peripherals, eliminating any potential for reset signals due to unstable power-on conditions. The device is also designed to minimize power consumption, so it does not degrade battery life in mobile devices or drain power unnecessarily in other applications.

Conclusion

The TPS3702CX10QDDCRQ1 is a low-cost, highly accurate supervisor solution, that is well suited for most processor and microcontroller applications. It features a wide range of features, including manual reset input, over-voltage and low-voltage supervisors, a fault indicator, and active-high and active-low reset outputs. With its low power consumption, small size, and wide range of features, the TPS3702CX10QDDCRQ1 is an ideal choice for reliable processor and microcontroller reset and supervision.

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