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L9408F

Electrical specifications

13

2

Electrical specifications

2.1

Absolute maximum ratings

2.2

Electrical characteristics

Tj = -40 to 150 °C; unless otherwise specified.

Table 3. Absolute maximum ratings

Symbol Parameter

Value

Unit

VS

DC supply voltage (2 min. @ 25 °C)

24

V

-

Transient supply voltage (load dump); t <500 ms @

25 °C

40

V

-

Transient supply voltage (low energy spikes pulse

ISO7637/1

60

V

Ptot

Total power dissipation (@ Tcase = 150 °C, Ifield = 5 A)

5

W

-

Reverse voltage all pins @ 25 °C, T = 15s

-2.5

V

-

DC pin current on DF, A+, GND pins (bonding limitation)

11

A

-

ESD voltage (Human body model)

±4

kV

Tj

Junction temperature

-40 to 150

°C

Tstg

Storage temperature

-40 to 170

°C

Table 4. Electrical characteristics

Symbol

Parameter

Test condition

Min.

Typ.

Max

Unit

Vbat

Operating supply voltage

-

8.5

-

18

V

Ib-sink

Supply battery current

-

-

-

50

mA

Ib-stby

Standby current

Vbat = 12 V, T = 25 °C

-

-

300

μA

Vbat = 12 V, T = 40 °C

-

-

500

Vreg

Regulated voltage & therm.

drift (standard version)

Ialt = 0.5 · Inom;

rpm = 0.5 · RPMMAX; T = 20 °C

14.3

-4

14.45

-3

14.6

-2

V

mV/°C

Vreg(1)

Regulated voltage & therm.

drift (optional version)

Ialt = 0.2 · Inom;

rpm = 0.5 · RPMMAX; T = 20 °C

14.1

-11.5

14.5

-10

14.9

-8.5

V

mV/°C

fsw

Switching frequency

in FSDF

30

-

400

Hz

Vrpm

Delta Vrpm

1800 < rpm < 12000;

Ialt = 0.3 · Inom

-

-

200

mV

Vload

Delta Vload

0.1 · Inom < Ialt < 0.9 · Inom;

rpm = 0.5 · RPMMAX

-

-

200

mV

Vreg

Regulated voltage without

battery

Ialt = 3 A resistive

-

-

16

V