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L9651

Figure 1. Typical Timing Diagram for Serial Diagnostic

Output voltage monitoring Output off

Open load threshold voltage

Short to GND threshold voltage

Open load diagnostic current Output off

Open load output voltage

Output current

50

100

150

µA

Output current

200

320

500

µA

Overload Diagnostic

Over temperature diagnostic

175

°C

Over current

3.0

2.5

2.2

4.3

3.7

3.5

A

A

A

Symbol

Parameter

Test Condition

Min.

Typ.

Max.

Unit

Bit1 Bit2 Bit3 Bit4 Bit5

Bit7 Bit8

Bit6

H

L

H

L

H

L

H

L

SY

CL

DO

DI

Fault: Open Load or Short to GND

o. k.

Di1 Di2 Di3

Di1 Di2 Di3

Reset of Shift Register

o. k.

Fault: Short to Battery or over temp.

Shift Register Data Frozen

ELECTRICAL CHARACTERISTCS (continued)