Technical Note

2/10

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2010.12 - Rev.A

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BD37A19FVM, BD37A41FVM, BD87A28FVM, BD87A29FVM,

BD87A34FVM, BD87A41FVM, BD99A41F

●

Absolute maximum ratings (Ta = 25℃)

Parameter

Symbol

Ratings

Unit

Power supply voltage

VDD

−0.3 to 10

V

CT pin voltage

VCT

−0.3 to VDD + 0.3

V

CTW pin voltage

VCTW

−0.3 to VDD + 0.3

V

RESET pin voltage

VRESET

−0.3 to VDD + 0.3

V

INH pin voltage

VINH

−0.3 to VDD + 0.3

V

CLK pin voltage

VCLK

−0.3 to VDD + 0.3

V

Power dissipation

Pd

470

*1

mW

550

*2

Operating ambient temperature

Topr

−40 to + 105

℃

Storage temperature

Tstg

−55 to + 125

℃

Maximum junction temperature

Tjmax

125

℃

*1 MSOP8 : Reduced by 4.70 mW/℃ over 25℃, when mounted on a glass epoxy board (70 mm × 70 mm × 1.6 mm).

*2 SOP8

: Reduced by 5.50 mW/℃ over 25℃, when mounted on a glass epoxy board (70 mm × 70 mm × 1.6 mm).

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Recommended operating ranges (Ta = −40℃ to 105℃)

Parameter

Symbol

Min.

Max.

Unit

RESET power supply voltage

VDD RESET

1.0

10

V

WDT power supply voltage

VDD WDT

2.5

10

V