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L5951

Triple output multifunction voltage regulator for car radio with IDR/class2 interface

STMicroelectronics 

Electrical specifications

3

Electrical specifications

L5951

3.1

Absolute maximum ratings

Table 4. Absolute maximum ratings

Symbol

Parameter

Value

Unit

VS DC operating supply voltage

-0.6 to 26.5

V

VDIAG Diagnostic output voltage

-0.6 to 5.5

V

VIN Input control voltage (EN, Sleep, 4X, Loop, TX)

-0.6 to 5.5

V

VOUT Output control voltage (Reset (1))

t(s) VS Peak supply voltage t = 50ms

c Top Operating temperature range

du Tstg Storage temperature range

ro 1. Denotes active low.

-0.3 to 5.5

V

34

V

-40 to 85

°C

-40 to 150

°C

t(s) - Obsolete P 3.2

Thermal data

Table 5. Thermal data

Symbol

Parameter

Rth j-amb Thermal resistance junction-to-ambient (1)

1. With 6cm2 on board heat sink area.

Value

50

Unit

°C/W

duc 3.3

Electrical characteristics

ro Tamb = 25 °C, VBAT = 14.4 V unless otherwise specified. Standard Loads: IREG1 = 0.5 mA,

P IREG2 = 0.5 mA, IREG3 = 5 mA.

solete Symbol

Table 6. Electrical characteristics

Parameter

Test Condition

Min. Typ. Max. Unit

ObIq,ST-BY Standby quiescent current

EN, Sleep* = 0V, VBAT = 14V,

IREG2 = 50mA, IREG1 = 50mA

EN, Sleep* = 0V, VBAT = 14V,

IREG2 = 500A, IREG1 = 250mA

350

110

A

A

VBAT = 14V, IREG1 = 100mA,

Maximum quiescent current -

IREG2 = 100mA, IREG3 = 100mA,

VBAT

IBUS = 30mA LVS = 0V

10

mA

LVS = 10V

10.5

mA

Maximum quiescent current -

LVS

VBAT = 14V, IREG1 = 100mA,

IREG2 = 100mA, IREG3 = 100mA,

IBUS = 30mA LVS = 10V

750

A

8/18

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