L9952GXP datasheet(39/68 Pages) STMICROELECTRONICS

39 / 68 page

L9952GXP

Electrical characteristics

Doc ID 13518 Rev 5

39/68

Figure 14. Watchdog, closed and open window tolerances and save trigger area

7.8

High side outputs

7.8.1

Output (Out_HS)

The voltages are referred to gnd and currents are assumed positive, when the current flows

into the pin. 6V < VS < 18V; 4.8V < V1 < 5.2V; Tj = -40°C...130°C, unless otherwise

specified.

4.5

7.5

save trigger area

TCW, min

TCW, max

TWD= 10ms

TOW, max

TOW, min

TWD = nominal trigger time

TCW = closed window

TOW = open window

time / ms

watchdog failure

undefined

Table 17.

High side outputs (Out_HS)

Item

Symbol

Parameter

Test condition

Min.

Typ. Max. Unit

7.8.1

RDSON

OUT_HS

Static Drain Source

On-resistance to supply

(IOUT_HS=150mA)

Tj = 25°C

1.0

1.5

Tj = 125°C

01.6

7.8.2

tdONHS

Switch on delay time

0.2 VS

µs

7.8.3

tdOFFHS

Switch off delay time

0.8VS

150

µs

7.8.4

tdSDHS

Short circuit filter time

Tested by scan

chain

64*

TOSC

7.8.5

tdARHS

Auto recovery filter time

Tested by scan

chain

400*

TOSC

7.8.6

dVout/dt

Slew rate

0.2

0.5

0.8

V/µs

7.8.7

IOSDHS

Short circuit shutdown

current

480

900

1320

7.8.8

IOLD

Open load detection

current

120

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