TPS22922BYZPR

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PMIC, or Power Management Integrated Circuits, are incredibly helpful in running our everyday electronics in both hardware and software. PMICs can also serve a range of purposes, from power distribution switches and load drivers to much more specific and intricate functions, such as regulating temperature for thermal or safety reasons. One such PMIC is the TPS22922BYZPR, an incredibly versatile device that can be used in any number of applications. This article will look at the application fields and working principle of the TPS22922BYZPR.

Application Field

The TPS22922BYZPR is a single-channel, low-side switch with a maximum load current of 2A and a programmable on-resistance of 0.15- to 0.47-ohms. It can be used as a load switch to drive LEDs, motors, relays, solenoids, actuators, and other loads. Its operating voltage is 6.4V - 24V and the device can withstand an operating temperature range of -40- to +125-degrees Celsius.

It also has integrated over-voltage, over-current, and over-temperature protection, making it ideal for applications where reliability and safety is a top priority. The TPS22922BYZPR can also be used in circuits to control the powering of loads and reduce power consumption during sleep states. Its extremely low total device current consumption of 1.5uA means that it can be used in battery powered applications.

Working Principle

The TPS22922BYZPR is equipped with an EN (Enable) pin which controls the overall switch status. When the EN pin is LOW, the device is in shutdown mode, drawing less than 2uA of current. When the EN pin is HIGH, it will turn on the switch and activate the load. The device also has a OVP (Over Voltage Protection) pin, which can be used to detect any voltage above an adjustable level.

The device is kept in fully protected mode with the combination of the OVP pin and programmable load current limit. If the voltage detected by the OVP pin rises above the set limit, or if the current through the switch exceeds the pre-set limit, the device will shut off the switch, protecting the IC and the connected load.

The TPS22922BYZPR comes with a built-in low-battery detector, which allows it to detect a low-voltage level, alerting the user if the voltage level drops below the adjustable pre-set level.

The TPS22922BYZPR also comes with over-temperature protection, which will shut off the switch if the die temperature rises above the pre-set thermal limit. This helps to protect the device from heat damage due to demanding operating conditions.

Conclusion

The TPS22922BYZPR is a versatile, low-side switch with a maximum output current of 2A. It can be used in a variety of applications and has integrated protection for over-voltage, over-current, and over-temperature. It is the perfect choice for battery powered applications, as its low-current consumption helps extend the battery life. The built-in low-battery and over-temperature protection makes it a reliable and safe choice for any application.

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