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LNBH29 데이터시트(PDF) 20 Page - STMicroelectronics

부품명 LNBH29
상세설명  LNB supply and control IC with step-up and I²C interface
PDF  31 Pages
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제조업체  STMICROELECTRONICS [STMicroelectronics]
홈페이지  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

LNBH29 데이터시트(HTML) 20 Page - STMicroelectronics

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Electrical characteristics
LNBH29
20/31
DocID023065 Rev 3
8
Electrical characteristics
Refer to the Section 5: Typical application circuits, TJ from 0 to 85 °C, DATA register bits set
to “0” except VSEL0 = 1, RSEL = 16.2 k
, DSQIN = LOW, V
IN = 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 9. Electrical characteristic
Symbol
Parameter
Test conditions
Min.
Typ.
Max.
Unit
VIN
Supply voltage (1)
812
17.5
V
IIN
Supply current
IOUT = 0 mA
6
mA
22 kHz tone enabled (DSQIN=high),
IOUT = 0 mA
10
VSEL0=VSEL1=VSEL2=0
1
VOUT
Output voltage total accuracy
Valid at any VOUT selected level
-3.5
+3.5
%
VOUT
Line regulation
VIN = 8 to 17.5 V
40
mV
VOUT
Load regulation
IOUT from 50 to 500 mA
100
IMAX
Output current limiting
thresholds
RSEL = 16.2 k
RSEL = 22 k
500
750
mA
350
550
ISC
Output short-circuit current
RSEL= 16.2 k
400
mA
SS
Soft-start time
VOUT from 0 to 13 V
4
ms
SS
Soft-start time
VOUT from 0 to 18 V
6
ms
T13-18
Soft transition rise time
VOUT from 13 V to 18 V
1.5
ms
T18-13
Soft transition fall time
VOUT from 18 V to 13 V
1.5
ms
TOFF
Dynamic overload protection
OFF-time
Output shorted
900
ms
TON
Dynamic overload protection
ON-time
Output shorted
TOFF/
10
ATONE
Tone amplitude
DSQIN = “1” (using internal tone
generator)
IOUT from 0 to 500 mA
CBUS from 0 to 750 nF
0.55
0.675
0.8
VPP
FTONE
Tone frequency
DSQIN = “1”
(using internal tone generator)
20
22
24
kHz
DTONE
Tone duty cycle
43
50
57
%
tr, tf
Tone rise or fall time (2)
5
8
15
µs
GEXTM
External modulation gain (3)
VOUT/ VEXTM, freq. from 10 kHz to
30 kHz
10
VEXTM
External modulation input
voltage (3)
EXTM AC coupling (4)
400
mVPP
ZEXTM
External modulation
impedance (3)
230
W



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