L9958 datasheet(31/38 Pages) STMICROELECTRONICS

31 / 38 page

L9958

Electrical specifications

Doc ID 17269 Rev 5

31/38

6.4.8

Diagnostic of open-load in on-state

6.4.9

Off-state diagnostic

7.7

Ioc_ls

Ioc-hs

Low-side over-current

threshold

High-side over-current

threshold

CL1:0 = 0X; -40 °C

≤ Tj ≤ 150 °C

5.5

7.7

9.9

CL1:0 = 1X; -40°C

≤ Tj < 25 °C

9.3

CL1:0 = 1X; 25 °C

≤ Tj ≤ 150°C

9.3

11.5

Tracking

CL1:0 = 0X; CL1:0 = 10;

-40 °C

≤ Tj ≤ 150 °C

Ilim_h+2

CL1:0 = 11; -40 °C

≤ Tj ≤ 150 °C Ilim_h+1.3

7.8

Toc_ls

Toc_hs

Low-side & high-side

over-current detection

filtering time

-0.8

2.5

µs

Table 24.

Current limitation and over-current detection (continued)

Pos.

Symbol

Parameter

Test condition

Min.

Typ.

Max.

Unit

Table 25.

Diagnostic of open-load in on-state

Pos.

Symbol

Parameter

Test condition

Min.

Typ.

Max.

Unit

8.1

Is_OL-on

Current source

Tj = -40 °C (go-no-go

functional test)

120

µA

Tj = 25 °C to 150 °C

(go-no-go functional

test)

100

8.2

Tmeas_on

Detection time (settling time)

µs

Table 26.

Off-state diagnostic

Pos.

Symbol

Parameter

Test condition

Min.

Typ.

Max.

Unit

9.1

ROL

Load detection threshold

200

9.2

Tdiag_off

Delay time before enabling off-

state diagnostic structure

diag after on-state

Guaranteed through

SCAN

100

125

150

9.3

Tdiag-off_1

Off-state diag filtering time

when OUT 1 and/or 2 decrease

from Vps

used each time OUT

pins are released from

Vps (after release of

SCB, after Tdiag_off)

Guaranteed through

SCAN

2.4

3.6

9.4

Tdiag_off_2

Off-state diagnostic filtering

time on failure detection

One symmetric filter for

each failure type (OL,

SCG, SCB) Guaranteed

through SCAN

200

250

300

µs

9.5

Tclock

Oscillator frequency

MHz

L9958 датащи(PDF) 31 Page - STMicroelectronics

L9958 датащи(HTML) 31 Page - STMicroelectronics

Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38

датащи скачать

ссылки URL