DocID029462 Rev 1

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L9408F

Electrical specifications

13

Figure 2. Application diagram

VPHL1

Enable control voltage PH

high threshold

Square wave 1 kHz

0.67

0.795

0.92

V

VPHL2

Enable control voltage PH low

threshold

-

VPHL1

-0.48

VPHL1

-0.57

VPHL1

-0.66

V

tPH

PH filtering time

-

15

-

120

μs

VPHH1

Diag. phase loss high voltage -

9

10.25

11.5

V

VPHH2

Diag. phase loss low voltage

-

4

5

6

V

tPHD

Diagnostic PH filtering time

-

50

-

200

μs

IPH

Phase pull-down current

-

1

-

8

mA

tD

Diagnostic alarm delay

-

0.48

0.575

0.65

s

fDFM

DFM open drain switching

frequency

in FSDF

30

-

400

Hz

Vol

Output low voltage DFM

Isink = 25 mA

-

-

1.5

V

Idfml

Short circuit protection DFM

VDF_MON = 12 V

25

-

200

mA

Ilk

Output leakage current DFM

VDF_MON = 24 V

-

-

0.1

mA

t_TM

DFM output voltage rise time

R = 2.7 kΩ; C = 1 nF;

Valim = 13.5 V

0.05

-

50

μs

T_TD

DFM output voltage fall time

R = 2.7 kΩ; C = 1 nF;

Valim = 13.5 V

0.05

-

50

μs

1. Available through a metal option of the actual device.

2. Not tested on the die version.

Table 4. Electrical characteristics (continued)

Symbol

Parameter

Test condition

Min.

Typ.

Max

Unit