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

Objective data sheet

Rev. 01 — 22 April 2004

4 of 21

Philips Semiconductors

TDA8939

Zero dead time Class-D 7.5 A power comparator

7.

Pinning information

7.1 Pinning

7.2 Pin description

Fig 2.

Pin configuration.

TDA8939

IN1N

BOOT1

OUT1

IN1P

POWERUP

STAB1

ENABLE

STAB2

DIAGN

CGND

OUT2

IN2P

BOOT2

IN2N

n.c.

001aaa625

24

23

22

21

20

19

18

17

16

15

14

13

11

12

9

10

7

8

5

6

3

4

1

2

Table 3:

Pin description

Symbol

Pin

Description

1

negative analog supply voltage for channel 1

IN1N

2

inverting input channel 1

3

positive analog supply voltage for channel 1

IN1P

4

non-inverting input channel 1

POWERUP

5

enable input for switching on internal reference sources

ENABLE

6

digital enable input

DIAGN

7

digital open-drain diagnostic output for OTP, OCP, OVP and UVP

(active LOW)

CGND

8

common ground, reference ground for diagnostic, enable and

power-up

IN2P

9

non-inverting input channel 2

10

positive analog supply voltage for channel 2

IN2N

11

inverting input channel 2

12

negative analog supply voltage for channel 2

n.c.

13

not connected

14

positive power supply voltage for channel 2

BOOT2

15

bootstrap capacitor 2

OUT2

16

PWM output channel 2

17

negative power supply voltage for channel 2

STAB2

18

decoupling internal stabilizer for logic supply channel 2