LNBH26 datasheet(28/38 Pages) STMICROELECTRONICS

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Electrical characteristics

LNBH26

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Doc ID 022771 Rev 1

Electrical characteristics

Refer to

Section 5, TJ from 0 to 85 °C, all DATA 1..4 register bits set to 0 except VSEL1 = 1,

RSEL = 11 k

Ω, DSQIN = LOW, VIN = 12 V, IOUT = 50 mA, unless otherwise stated. Typical

values are referred to TJ = 25 °C. VOUT = VOUT pin voltage. See software description section

for I²C access to the system register (

Section 6 and Section 7).

Table 13.

Electrical characteristics of section A/B

Symbol

Parameter

Test conditions

Min.

Typ.

Max.

Unit

VIN

Supply voltage (1)

812

IIN

Supply current

Both sections A and B enabled,

IOUT = 0 mA

22 kHz tone enabled (TEN-A/B = 1,

DSQIN-A/B = High), IOUT = 0 mA

Both sections A and B set in standby:

VSEL1=VSEL2=VSEL3=VSEL4=0

VOUT

Output voltage total accuracy

Valid at any VOUT selected level

-3.5

+3.5

VOUT

Line regulation

VIN = 8 to 16 V

VOUT

Load regulation

IOUT from 50 to 750 mA

100

IMAX

Output current limiting thresholds

RSEL = 11 k

Ω, ISET = 0

750

1100

RSEL = 15 k

Ω, ISET = 0

500

750

RSEL = 20 k

Ω, ISET = 0

350

550

IMAX

Output current limiting thresholds

RSEL = 11 k

Ω, ISET = 1

400

RSEL = 15 k

Ω, ISET = 1

280

RSEL = 20 k

Ω, ISET = 1

200

ISC

Output short-circuit current

RSEL = 11 k

Ω, ISET = 0

500

Soft-start time

VOUT from 0 to 13 V

Soft-start time

VOUT from 0 to 18 V

T13-18

Soft transition rise time

VOUT from 13 V to 18 V

1.5

T18-13

Soft transition fall time

VOUT from 18 V to 13 V

1.5

TOFF

Dynamic overload protection OFF

time

PCL = 0, output shorted

900

TON

Dynamic overload protection ON

time

PCL = TIMER = 0, output shorted

TOFF/

PCL = 0, TIMER = 1, output shorted

TOFF/

ATONE

Tone amplitude

DSQIN=High, EXTM=0, TEN=1

IOUT from 0 to 750 mA

CBUS from 0 to 750 nF

0.55

0.675

0.8

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