L9950 datasheet(10/39 Pages) STMICROELECTRONICS

10 / 39 page

Electrical specifications

L9950 - L9950XP

10/39

Doc ID 10311 Rev 11

2.4

Temperature warning and thermal shutdown

2.5

Electrical characteristics

VS = 8 to 16 V, VCC = 4.5 to 5.3 V, Tj = - 40 to 150 °C, unless otherwise specified.

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

flows into the pin.

Table 6.

Temperature warning and thermal shutdown

Symbol

Parameter

Min.

Typ.

Max.

Unit

TjTW ON

Temperature warning threshold junction

temperature

increasing

150

°C

TjTW OFF

Temperature warning threshold junction

temperature

decreasing

130

°C

TjTW HYS Temperature warning hysteresis

°K

TjSD ON

Thermal shutdown threshold junction

temperature

increasing

170

°C

TjSD OFF

Thermal shutdown threshold junction

temperature

decreasing

150

°C

TjSD HYS Thermal shutdown hysteresis

°K

Table 7.

Supply

Symbol

Parameter

Test condition

Min.

Typ.

Max.

Unit

Operating supply voltage

range

VS DC supply current

VS = 16 V, VCC = 5.3 V

active mode

OUT1 - OUT11 floating

-7

VS quiescent supply current

VS = 16 V, VCC = 0 V

standby mode

OUT1 - OUT11 floating

Ttest =-40 °C, 25 °C

µA

ICC

VCC DC supply current

VS = 16 V, VCC = 5.3 V

CSN = VCC , active mode

-1

VCC quiescent supply

current

VS = 16 V, VCC = 5.3 V

CSN = VCCstandby mode

OUT1 - OUT11 floating

Ttest =-40 °C, 25 °C

-25

µA

IS + ICC

Sum quiescent supply

current

VS = 16 V, VCC = 5.3 V

CSN = VCC

standby mode

OUT1 - OUT11 floating

Ttest =-40 °C, 25 °C

-31

µA

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