8.2 Functional Block Diagram

Control Logic

VIN1

ON1

VOUT1

GND

Charge Pump

Control Logic

VIN2

ON2

VOUT2

CT1

CT2

VBIAS

Not Present in

TPS22976N

Not Present in

TPS22976N

Copyright © 2016, Texas Instruments Incorporated

Figure 8-1. TPS22976 Functional Block Diagram

8.3 Feature Description

8.3.1 ON and OFF Control

The ON pins control the state of the switch. Asserting ON high enables the switch. ON is active high with a

low threshold, making it capable of interfacing with low-voltage signals. The ON pin is compatible with standard

GPIO logic threshold. It can be used with any microcontroller with 1.2 V or higher GPIO voltage. This pin cannot

be left floating and must be tied either high or low for proper functionality.

TPS22976

SLVSDE7D – NOVEMBER 2016 – REVISED DECEMBER 2023

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