LNBH25 datasheet(24/34 Pages) STMICROELECTRONICS

24 / 34 page

Electrical characteristics

LNBH25

24/34

Doc ID 022433 Rev 4

Electrical characteristics

Refer to

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

RSEL = 11.5 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

Symbol

Parameter

Test conditions

Min.

Typ.

Max.

Unit

VIN

Supply voltage (1)

812

IIN

Supply current

IOUT = 0 mA

22 kHz Tone enabled (TEN=1),

DSQIN = High, IOUT= 0 mA

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 = 11.5 k

Ω, ISET = 0

750

1100

RSEL = 16.2 k

Ω, ISET = 0

500

750

RSEL = 22 k

Ω, ISET = 0

350

550

IMAX

Output current limiting

thresholds

RSEL = 11.5 k

Ω, ISET = 1

500

RSEL = 16.2 k

Ω, ISET = 1

350

RSEL = 22 k

Ω, ISET = 1

250

ISC

Output short-circuit current

RSEL = 11.5 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 to 18 V

1.5

T18-13

Soft transition fall time

VOUT from 18 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/10

PCL = 0, TIMER = 1, Output Shorted

TOFF/5

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

VPP

FTONE

Tone frequency

DSQIN=High, EXTM=0, TEN=1

kHz

DTONE

Tone duty cycle

tr, tf

Tone rise or fall time (2)

µs

EffDC/DC DC-DC converter efficiency

IOUT = 500 mA

LNBH25 датащи(PDF) 24 Page - STMicroelectronics

LNBH25 датащи(HTML) 24 Page - STMicroelectronics

Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34

датащи скачать

ссылки URL