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LNBH24PPR Folha de dados(PDF) 20 Page - STMicroelectronics

Nome de Peças LNBH24PPR
Descrição Electrónicos  Dual LNB supply and control IC with step-up and I2C interface
PDF  30 Pages
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Fabricante Electrônico  STMICROELECTRONICS [STMicroelectronics]
Página de início  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

LNBH24PPR Folha de dados(HTML) 20 Page - STMicroelectronics

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Electrical characteristics
LNBH24
20/30
Symbol
Parameter
Test conditions
Min.
Typ.
Max.
Unit
FSW
DC-DC converter switching
frequency
220
kHz
FDETIN
Tone detector frequency
capture range
0.4VPP sine wave
(2)
19
22
25
kHz
VDETIN
Tone detector input amplitude Sine wave signal, 22 kHz
0.3
1.5
VPP
ZDETIN
Tone detector input
impedance
150
k
Ω
VOL
DSQOUT pin logic LOW
DETIN Tone present, IOL=2mA
0.3
0.5
V
IOZ
DSQOUT pin leakage current DETIN Tone absent, VOH=6V
10
µA
VIL
DSQIN,TTX,13/18, EXTM pin
logic Low
0.8
V
VIH
DSQIN,TTX,13/18, EXTM pin
logic High
2V
IIH
DSQIN,TTX,13/18, EXTM pin
input current
VIH=5V
15
µA
IOBK
Output backward current
EN=0, VOBK=21V
-6
-15
mA
TSHDN
Thermal shut-down threshold
150
°C
ΔT
SHDN
Thermal shut-down
hysteresis
15
°C
1.
External signal frequency range in which the EXTM function is guaranteed.
2.
Frequency range in which the DETIN function is guaranteed. The VPP level is intended on the LNBOUT (before the C12A/B
capacitor. See typical application circuit in Figure 4).
Table 8.
Electrical characteristics of sections A/B (continued) (refer to the typical application
circuit in Figure 4, TJ from 0 to 85 °C, EN=1, VSEL=LLC=TEN=PCL=ITEST=TTX=AUX=0,
RSEL = 11 kΩ, DSQIN=LOW, VI = 12 V, IOUT = 50 mA, unless otherwise stated. Typical
values are referred to TJ = 25 °C. VOUT=VoRX pin voltage. See software description section
for I²C access to the system register)
Table 9.
I²C electrical characteristics (TJ from 0 to 85 °C, VI = 12 V)
Symbol
Parameter
Test conditions
Min.
Typ.
Max.
Unit
VIL
LOW Level input voltage
SDA, SCL
0.8
V
VIH
HIGH Level input voltage
SDA, SCL
2
V
IIN
Input current
SDA, SCL, VI = 0.4 to 4.5 V
-10
10
µA
VOL
Low level output voltage
SDA (open drain), IOL = 6 mA
0.6
V
FMAX
Maximum clock frequency
SCL
400
kHz



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