TISP3082F3SL 参数 Datasheet PDF下载

TISP30xxF3 (LV) Overvoltage Protector Series

APPLICATIONS INFORMATION

Longitudinal Balance

Figure 18 shows a three terminal TISP

®

device with its equivalent “delta” capacitance. Each capacitance, CTG , CRG and CTR, is the true

terminal pair capacitance measured with a three terminal or guarded capacitance bridge. If wire R is biased at a larger potential than wire T,

then CTG >C RG. Capacitance CTG is equivalent to a capacitance of CRG in parallel with the capacitive difference of (CTG -CRG). The line

capacitive unbalance is due to (CTG -CRG) and the capacitance shunting the line is CTR +C RG/2.

All capacitance measurements in this data sheet are three terminal guarded to allow the designer to accurately assess capacitive unbalance

effects. Simple two terminal capacitance meters (unguarded third terminal) give false readings as the shunt capacitance via the third terminal is

included.

T

T

(C

TG

-C

RG

)

C

TG

C

RG

Equipment

C

TR

C

RG

C

RG

R

C

TG

> C

RG

Equivalent Unbalance

AIXXAB

G

G

C

TR

Equipment

R

Figure 18.

“TISP” is a trademark of Bourns, Ltd., a Bourns Company, and is Registered in U.S. Patent and Trademark Office.

“Bourns” is a registered trademark of Bourns, Inc. in the U.S. and other countries.

MARCH 1994 - REVISED MARCH 2006

Specifications are subject to change without notice.

Customers should verify actual device performance in their specific applications.