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© Koninklijke Philips Electronics N.V. 2004. All rights reserved.

Objective data sheet

Rev. 01 — 22 April 2004

8 of 21

Philips Semiconductors

TDA8939

Zero dead time Class-D 7.5 A power comparator

9.

Limiting values

10. Thermal characteristics

Fig 4.

Mode selection timing diagram.

001aaa062

standby

start-up sequence

switch-off sequence

status

POWERUP

ENABLE

reset

operating

reset

standby

Table 8:

Limiting values

In accordance with the Absolute Maximum Rating System (IEC 60134).

Symbol

Parameter

Conditions

Min

Max

Unit

supply voltage

-

60

V

repetitive peak current on

output pins

-

7.5

A

storage temperature

−55

+150

°C

ambient temperature

−40

+85

°C

virtual junction temperature

-

150

°C

Table 9:

Thermal characteristics

Symbol

Parameter

Conditions

Value

Unit

thermal resistance from junction to ambient in free air

40

K/W

thermal resistance from junction to case

1.3

K/W