L9951XP datasheet(11/36 Pages) STMICROELECTRONICS

11 / 36 page

L9951 / L9951XP

Electrical specifications

Doc ID 14173 Rev 8

11/36

ICC

VCC DC supply current

VS = 13V, VCC = 5.0V

CSN = VCC

active mode

VCC quiescent supply

current

VS = 13V, VCC = 5.0V

CSN = VCC

standby mode

OUT1 - OUT5 floating

µA

IS + ICC

Sum quiescent supply

current

VS = 13V, VCC = 5.0V

CSN = VCC

standby mode

OUT1 - OUT5 floating

723

µA

Table 8.

Overvoltage and undervoltage detection

Symbol

Parameter

Test condition

Min.

Typ.

Max.

Unit

VSUV ON VS UV-threshold voltage

VS increasing

6.0

7.2

VSUV OFF VS UV-threshold voltage

VS decreasing

5.4

6.5

VSUV hyst VS UV-hysteresis

VSUV ON - VSUV OFF

0.55

VSOV OFF VS OV-threshold voltage

VS increasing

24.5

VSOV ON VS OV-threshold voltage

VS decreasing

17.5

VSOV hyst VS OV-hysteresis

VSOV OFF - VSOV ON

0.5

VPOR OFF Power-on-reset threshold

VCC increasing

4.4

VPOR ON Power-on-reset threshold

VCC decreasing

3.1

VPOR hyst Power-on-reset hysteresis

VPOR OFF - VPOR ON

0.3

Table 9.

Current monitor output

Symbol

Parameter

Test condition

Min.

Typ.

Max.

Unit

VCM

Functional voltage range

VCC = 5V

ICM,r

Current monitor output

ratio:

ICM /IOUT1,2,3,4,5

≤ VCM ≤ 4V, VCC=5V

1:10000

ICM acc

Current monitor accuracy

≤ VCM≤ 4V,

VCC=5V,

IOUT1-5,low =500mA

IOUT1,high =6A

IOUT2,3,high =4.9A

IOUT4,5,high =1.2A

(FS=full scale=600

μA)

4% +

1%FS

8% +

2%FS

Table 7.

Supply (continued)

Symbol

Parameter

Test condition

Min.

Typ.

Max.

Unit

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