PSD05HP View Datasheet(PDF) - ProTek Devices.

Part Name

Description

Manufacturer

PSD05HP

HIGH POWERED TVS ARRAY

ProTek Devices. 

Only One Name Means ProTek’Tion™

application information

VI

PSD05HP

IE

+VR1-

R1

+VD1-

D1

+VD2-

D2

+

VEC-

+

Q1

VEB-

R2

IC

C1

IO

VO

PSD05HP

figure 1 - USB Battery Charger Application

• One PSD05HP is placed on the output of the power regulator to protect the VBAT line from switching tran-

sients as well as EFT that may occur across the line.

circuit board recommendations

Circuit board layout is critical for electromagnetic compatibility protection. The following guidelines are recommended:

• The protection device should be placed near the input terminals or connectors, the device will divert the transient current

immediately before it can be coupled into the nearby traces.

• The path length between the TVS device and the protected line should be minimized.

• All conductive loops including power and ground loops should be minimized.

• The transient current return path to ground should be kept as short as possible to reduce parasitic inductance.

• Ground planes should be used whenever possible. For multilayer PCBs, use ground vias.

05313.R3 12/10

Page 5

www.protekdevices.com

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