11

10

8

1

2

3

4

7

ROUT2

DIN2

9

RIN1

16

13

12

15

14

DIN1

5

6

+

–

V

CC

GND

ROUT1

+

–

CBYPASS

=0.1 F,

m

+

–

+

–

RIN2

+

–

DOUT1

DOUT2

†

C3canbeconnectedtoV

orGND.

CC

NOTES: A .Resistorvaluesshownarenominal.

C2+

C2–

C1+

C1–

V+

V–

C1

0.1 F,

m

6.3V

C3

†

0.1 F

m

16V

C2

0.1 F,

m

16V

5kW

5kW

C4

0.1 F

m ,

16V

B.Nonpolarizedceramiccapacitorsareacceptable.Ifpolarizedtantalumorelectrolyticcapacitorsareused,theyshouldbe

connectedasshown.

TRS202E

www.ti.com

SLLS847C – JULY 2007 – REVISED MAY 2010

APPLICATION INFORMATION

Figure 4. Typical Operating Circuit and Capacitor Values

Capacitor Selection

The capacitor type used for C1-C4 is not critical for proper operation. The TRS202E requires 0.1-mF capacitors,

although capacitors up to 10 mF can be used without harm. Ceramic dielectrics are suggested for the 0.1-mF

capacitors. When using the minimum recommended capacitor values, make sure the capacitance value does not

degrade excessively as the operating temperature varies. If in doubt, use capacitors with a larger (e.g., 2×)

nominal value. The capacitors' effective series resistance (ESR), which usually rises at low temperatures,

influences the amount of ripple on V+ and V–.

Use larger capacitors (up to 10 mF) to reduce the output impedance at V+ and V–.

capacitors (C1–C4).

Copyright © 2007–2010, Texas Instruments Incorporated

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