TPS3707-50DRG4

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Power management integrated circuits (PMICs) are a type of integrated circuits used to manage power and voltage within a given circuit. Supervisors are a type of PMICs that provide basic over-current and under-current protection for a variety of electronic systems. One example of supervisors is the Texas Instruments TPS3707-50DRG4, a voltage supervisor with integrated reset delay and processor supervisory functions. This particular PMIC offers low-cost, space-saving protection for processors in a wide range of applications.

The TPS3707-50DRG4 is a micropower voltage supervisor which provides microprocessor and digital circuitry with a reset signal when power-on sequencing and under/overvoltage conditions occur. A delay reset is provided which allows the reset signal to be externally delayed up to 150 milliseconds. The TPS3707-50DRG4 also offers an active-high reset output, and active-high, programmable reset thresholds. This PMIC can monitor and protect against several power conditions, such as undervoltage, overvoltage, power-on reset, and brown-out conditions.

In terms of its application field, the TPS3707-50DRG4 can be effectively used in a variety of different applications, including in digital power management, automotive electronics, computer, networking, and embedded systems. Its low operating current, typically 8.45uA at 2.7V, ensures that it consumes very minimal power, making it ideal for use in battery-powered applications. Additionally, its on-chip trimming options enable the reset threshold to be set accurately, making it suitable for applications in precision power management.

The TPS3707-50DRG4 operates on a 3.135 V to 5.5 V supply, with a maximum operating temperature of 125C. The PMIC also works with a wide range of power sources, such as batteries, switching converters, and AC power supplies. The TPS3707-50DRG4 has a reset on/off feature that prevents unwanted resets, and is designed to meet the stringent requirements of automotive applications such as those found in automotive body electronics.

When it comes to its working principle, the TPS3707-50DRG4 uses an internal voltage reference and a voltage divider to compare the supply voltage to a preset voltage threshold. If the voltage level falls below the preset voltage value, a reset signal is generated and released to the microcontroller to reset its operation. The TPS3707-50DRG4 also has an adjustable reset time that allows the reset signal to be delayed for up to 150ms, ensuring that the circuit does not reset prematurely due to spikes in power.

The TPS3707-50DRG4 is an effective and low-cost solution for providing microprocessors and digital circuitry with necessary reset and voltage surveillance. With its small size, low operating current, and a wide range of applications, the PMIC is a reliable and cost-effective choice for power management in a variety of applications.

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