TPS3128E12DBVR

Power management integrated compounds (PMICs) are integrated circuits that build the central nervous system of modern sophisticated device- designs. PMICs are application specific integrated circuits (ASICs) that regulate, condition and generate power for microprocessors and other peripheral electronic components. Their inputs generally come from sensors and other circuits.

Supervisors are an important type of PMICs providing safety protection for electronic circuits by monitoring system power supply and helping detect when voltage reaches a preset level. Supervisors play a significant role in helping protect the device from various power issues, such as over-voltages, over-currents, under-voltages and short-circuits.

TPS3128E12DBVR is one of the members in supervisors family. This device is a three-channel supervisor featuring many benefits such as small package size, low power consumption, and reset/power-down control auto-power circuitry with logic-level shifting function. It supports reset, power-down and pull down capability with automatic power-down resetting and specification of reset/power-down delays. All of these features meet the complicated design requirements.

TPS3128E12DBVR has wide application fields. In desktop and laptop computers, this device helps in protecting the CPUand other components from any power-related anomalies. It is used in battery-operated equipment such as mobile phones and handheld device, helping the system power supervisor by monitoring the battery voltage and providing the device clock source.

Its working principle is simple and easy to understand. It has two 6-bit wide voltage input registers to accommodate six independent reset thresholds, and one enable and one active-low reset output. Whenever the input voltage is greater than or equal to any of the and set thresholds, the device will pull down the reset output pin and assert a reset condition. When the input voltage falls back to an active low level, the reset output pin returns high, and the reset signal disappears.

Furthermore, the device incorporates a full-fledged microprocessor reset signal that provides signal status by keeping the reset pin asserted while powered down. In this way, it can avoid the trouble of powering up with unknown state due to the reset pin floatingly during power up.

In short, TPS3128E12DBVR is a powerful and efficient member of the supervisors family. It is used primarily in desktop and laptop computers, as well as battery-operated equipment, helping to protect the system from various power-related anomalies. Besides, thanks to its simple working principle, anyone can easily use and understand it.