L9958 datasheet(30/38 Pages) STMICROELECTRONICS

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Electrical specifications

L9958

30/38

Doc ID 17269 Rev 5

6.4.6

Over-temperature monitoring

6.4.7

Current limitation and over-current detection

Table 23.

Over-temperature monitoring

Pos.

Symbol

Parameter

Test condition

Min.

Typ.

Max.

Unit

6.1

OTwarn

Over-temperature warning

150

170

°C

6.2

OTsd

Over-temperature shut-down

170

200

°C

6.3

OThyst

Over-temperature hysteresis

°C

6.4

TTSD

Over-temperature filtering time

Guaranteed by clock

measurement

-36-

µs

Table 24.

Current limitation and over-current detection

Pos.

Symbol

Parameter

Test condition

Min.

Typ.

Max.

Unit

7.1

Ilim_H

Current limitation high

threshold

CL1:0 = 00; -40 °C

≤ Tj ≤ 150 °C

2.5

3.1

CL1:0 = 01; -40 °C

≤ Tj ≤ 150 °C

3.5

4.85

CL1:0 = 10; -40 °C

≤ Tj < 25 °C

5.5

6.75

CL1:0 = 10; 25 °C

≤ Tj ≤ 150 °C

5.5

6.6

7.7

CL1:0 = 11; -40 °C

≤ Tj < 25 °C

7.8

9.1

10.4

CL1:0 = 11; 25 °C

≤ Tj ≤ 150°C

7.6

8.6

9.6

CL1:0 = XX, Tj = OTsd

2.5

7.2

Ilim_L

Current limitation low

threshold

CL1:0 = 0X; -40 °C

≤ Tj ≤ 150 °C Ilim_H–0.2

Ilim_H-

0.5

Ilim_H-

0.8

CL1:0 = 10; -40°C

≤ Tj < 25 °C

Ilim_H–

0.35

Ilim_H-

0.65

Ilim_H-

0.95

CL1:0 = 10; 25 °C

≤ Tj ≤ 150°C

Ilim_H–

0.35

Ilim_H-

0.55

Ilim_H-

0.85

CL1:0 = 11; -40°C

≤ Tj < 25°C

Ilim_H–

0.4

Ilim_H-

0.7

Ilim_H-

CL1:0 = 11; 25 °C

≤ Tj ≤ 150°C

Ilim_H–

0.4

Ilim_H-

0.55

Ilim_H-

0.95

7.3

Tlimh

High current limitation

threshold filtering time

can be included in Tblanck

0.1

µs

7.4

Tliml

Low current limitation

threshold filtering time

-1

µs

7.5

Toffmin

Current limitation delay

time

-30

µs

7.6

Blanking time

4.9

8.7

µs

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