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LNBH26 データシート(PDF) 31 Page - STMicroelectronics

部品番号 LNBH26
部品情報  Dual LNBS supply and control IC with step-up and I짼C interface
PDF  38 Pages
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メーカー  STMICROELECTRONICS [STMicroelectronics]
ホームページ  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

LNBH26 データシート(HTML) 31 Page - STMicroelectronics

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LNBH26
Electrical characteristics
Doc ID 022771 Rev 1
31/38
TJ from 0 to 85 °C, VI = 12 V.
Refer to
Section 5, TJ from 0 to 85 °C, All DATA 1..4 register bits set to “0”, RSEL = 11 kΩ,
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.
Note:
If the output voltage is lower than the min. value the VMON I²C bit is set to 1.
If VMON=0 then VOUT > 80% of VOUT (typ.).
If VMON=1 then VOUT < 95% of VOUT (typ.).
Refer to
Section 5, TJ from 0 to 85 °C, RSEL = 11 kΩ, DSQIN = LOW, VIN = 12 V, 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.
Note:
If the output current is lower than the min. threshold limit, the IMON I²C bit is set to 1. If the
output current is higher than the max. threshold limit, the IMON I²C bit is set to 0.
Table 16.
Address pin characteristics
Symbol
Parameter
Test condition
Min.
Typ.
Max.
Unit
VADDR-1
“0001000(R/W)” address pin
voltage range
R/W bit determines the transmission
mode: read (R/W=1) write (R/W=0)
00.8
V
VADDR-2
“0001001(R/W)” address pin
voltage range
R/W bit determines the transmission
mode: read (R/W=1) write (R/W=0)
25
V
Table 17.
Output voltage diagnostic (VMON-A/B bits, STATUS 1 register) characteristics
Symbol
Parameter
Test condition
Min.
Typ.
Max.
Unit
VTH-L
Diagnostic low threshold at
VOUT = 13.0 V
VSEL1 = 1,
VSEL2 = VSEL3 = VSEL4 = 0
80
90
95
%
VTH-L
Diagnostic low threshold at
VOUT = 18.15 V
VSEL4=1,
VSEL1 = VSEL2 = VSEL3 = 0
80
90
95
%
Table 18.
Output current diagnostic (IMON-A/B bit, STATUS 2 register) characteristics
Symbol
Parameter
Test condition
Min.
Typ.
Max.
Unit
ITH
Minimum current diagnostic
threshold
EN_IMON = 1 (VOUT is set to 21 V typ.)
5
12
20
mA



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