TPS3820 datasheet(13/27 Pages) TI1

13 / 27 page

WDI

Signal

Pullup

Voltage

Signal

CVDD

TPS3828-xx-Q1

RESET

Flag

TPS3820-33-Q1, TPS3820-50-Q1, TPS3823-25-Q1

TPS3823-30-Q1, TPS3823-33-Q1, TPS3823-50-Q1, TPS3824-30-Q1, TPS3824-33-Q1

TPS3824-50-Q1, TPS3825-33-Q1, TPS3825-50-Q1, TPS3828-33-Q1, TPS3828-50-Q1

www.ti.com

SGLS143C – DECEMBER 2002 – REVISED DECEMBER 2015

11 Layout

11.1 Layout Guidelines

Follow these guidelines to lay out the printed-circuit-board (PCB) that is used for the TPS382x-xx-Q1 family of

devices.

•

Place the VDD decoupling capacitor (CVDD) close to the device.

•

Avoid using long traces for the VDD supply node. The VDD capacitor (CVDD), along with parasitic inductance

from the supply to the capacitor, can form an LC tank and create ringing with peak voltages above the

maximum VDD voltage.

11.2 Layout Example

Figure 12. Example Layout (DBV Package)

Submit Documentation Feedback

Product Folder Links: TPS3820-33-Q1 TPS3820-50-Q1 TPS3823-25-Q1 TPS3823-30-Q1 TPS3823-33-Q1 TPS3823-

50-Q1 TPS3824-30-Q1 TPS3824-33-Q1 TPS3824-50-Q1 TPS3825-33-Q1 TPS3825-50-Q1 TPS3828-33-Q1

TPS3828-50-Q1

TPS3820 Datasheet(PDF) 13 Page - Texas Instruments