Bit Nr.

Name

Contents

0

F11

1

F12

2

F21

3

F22

4

F31

5

F32

6

F41

7

F42

8

RES1

Logic State of RES1 Input (0: RES1 = L ; 1: RES1 = H)

9

RES2

Logic State of RES2 Input (0: RES2 = L ; 1: RES2 = H)

10

TSDF

Thermal Diagnostic Flag ( 0: Overtemperature ; 1:Normal )

11

C1

12

C2

13

C3

14

C4

15

1

Framing Information (always 1)

Figure 7: Diagnostic Information from QLSD to Microcontroller.

PWM

V OUT

PWM

V

OUT

I D

t

C

tV

dPO

PWMON

t

t

min

Sample point COMP2

Sample point COMP1

dPO

t

tV

PWMOFF

t

min

Sample point COMP2

Sample point COMP1

Fig.1

Fig.2

Figure 8.

Fig. A

Fig. B

Note:

For safty diagnostic take notice of the following conditions:

=

=

L9341

7/10