TPS2114PWRG4

The Texas Instruments TPS2114PWRG4 is an integrated power supply for controlling voltage rail sequencing and power-on reset (POR) in a variety of system designs. It is part of the Texas Instruments Precision Power Management (PPM) portfolio and is designed to help OEMs meet the long life, wide operating temperature (-40 to +85C) requirements of various applications. The device falls into the PMIC (Power Management Integrated Circuit) family of controllers, ideal diodes, POR and switching regulators.

The TPS2114PWRG4 is a low input voltage, high voltage, wide temperature power supply controller with integrated ideal diode controller. Ideal diode controllers maintain the correct output voltage through its diode-OR combination, even when both inputs are active. The diode-OR approach eliminates nasty consequences such as thermal runaway, low-voltage start-up, and low power noise.

The TPS2114PWRG4 is able to deliver 18V from an input voltage ranging from 0.6V to 6V and output currents of 0.5A. It has logic-controlled voltage-rail startup sequences up to 16 rails and up to mezzanine voltage (1.8V). The device also safeguards against reverse current and over-voltage on the output.

The TPS2114PWRG4 offers a number of features. It integrates two buck switching regulators to regulate output voltage, plus one or two ideal diodes with integrated matching filters. The regulators are user-selectable and programmable, allowing flexibility in the design process. The ideal diode also provides reverse current blocking. The voltage rail sequencing establishes an order in which the power rails are enabled, in order to minimize peak current draw and to minimize the electromagnetic interference on the bus and at the connector.

The TPS2114PWRG4 is also able to control reset signals on power-up and power-down. It includes an adjustable power-on reset delay and a power-down reset signal so that the user can control the system state. This enables more granular and safe control of power to the system.

Overall, the TPS2114PWRG4 power supply controller is ideal for a variety of applications, especially in industrial, medical, and communications environments requiring wide voltage operating temperatures. It is a versatile and useful solution that provides power and voltage sequencing solutions, while protecting the overall system current and voltage.