TCR5SC15FE～TCR5SC36FE

2008-11-11

6

Attention in Use

•

Output Capacitors

Ceramic capacitors can be used for these devices. However, because of the type of the capacitors, there might

be unexpected thermal features. Please consider application condition for selecting capacitors. And Toshiba

recommend the ESR of ceramic capacitor is under 10

Ω.

•

Mounting

The long distance between IC and output capacitor might affect phase assurance by impedance in wire and

inductor. For stable power supply, output capacitor need to mount near IC as much as possible. Also GND pattern

need to be large and make the wire impedance small as possible.

•

Permissible Loss

Please have enough design patterns for expected maximum permissible loss. And under consideration of

surrounding temperature, input voltage, and output current etc, we recommend proper dissipation ratings for

maximum permissible loss; in general maximum dissipation rating is 70 to 80 percent.

•

Overcurrent Protection Circuit

Overcurrent protection circuit is designed in these products, but this does not assure for the suppression of

uprising device operation. If output pins and GND pins are shorted out, these products might be break down.

In use of these products, please read through and understand dissipation idea for absolute maximum ratings from

the above mention or our ‘Semiconductor Reliability Handbook’. Then use these products under absolute maximum

ratings in any condition. Furthermore, Toshiba recommend inserting failsafe system into the design.