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LNBH24L Datasheet(PDF) 4 Page - STMicroelectronics

Part # LNBH24L
Description  Dual LNBS supply and control IC with step-up and I²C interface
PDF  25 Pages
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Manufacturer  STMICROELECTRONICS [STMicroelectronics]
Direct Link  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

LNBH24L Datasheet(HTML) 4 Page - STMicroelectronics

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Block diagram
LNBH24L
4/25
Doc ID 16857 Rev 2
1
Block diagram
Figure 1.
Block diagram
SDA SCL
LNBH24L
ADDR-A
A-GND
I²C Diagnostics
DSQIN-A
Vup -A
VoRX -A
PDC
-A
VoTX-A
LX-A
22 kHz
Oscillator
Rsense
EN-A
VSEL-A
Linear Post-reg
+Protections
+Diagnostics
TTX-A
EN-A
VSEL-A
VOUT-A Control
EXTM-A
DSQIN-B
Vup -B
VoRX-B
PDC
-B
VoTX-B
LX-B
Rsense
EN-B
VSEL-B
Linear Post-reg
+Protections
+Diagnostics
TTX-B
EN-B
VSEL-B
VOUT-B Control
EXTM-B
P-GND-A
P-GND-B
ADDR-B
Byp
Vcc
Preregulator
+U.V.lockout
+P.ON reset
Vcc -L
ISEL-A
ISEL-A
ISEL-B
ISEL-B
TTX-A
TTX-B
TEN-A
TEN-B
TEN-B
TTX-A
TTX-B
TEN-A
FB
FB
Pull Down
Controller
Pull Down
Controller
22 kHz
Oscillator
-
-
²
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
Rsense
-
-
-
-
-
-
-
-
-
-
-
-
-
-
B
TEN-B
FB
FB
FB
FB
SDA SCL
LNBH24L
ADDR-A
A-GND
I²C Diagnostics
DSQIN-A
Vup -A
VoRX -A
PDC
-A
VoTX-A
LX-A
22 kHz
Oscillator
Rsense
EN-A
VSEL-A
Linear Post-reg
+Protections
+Diagnostics
TTX-A
EN-A
VSEL-A
VOUT-A Control
EXTM-A
DSQIN-B
Vup -B
VoRX-B
PDC
-B
VoTX-B
LX-B
Rsense
EN-B
VSEL-B
Linear Post-reg
+Protections
+Diagnostics
TTX-B
EN-B
VSEL-B
VOUT-B Control
EXTM-B
P-GND-A
P-GND-B
ADDR-B
Byp
Vcc
Preregulator
+U.V.lockout
+P.ON reset
Vcc -L
ISEL-A
ISEL-A
ISEL-B
ISEL-B
TTX-A
TTX-B
TEN-A
TEN-B
TEN-B
TTX-A
TTX-B
TEN-A
FB
FB
Pull Down
Controller
Pull Down
Controller
22 kHz
Oscillator
-
-
²
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
Rsense
-
-
-
-
-
-
-
-
-
-
-
-
-
-
B
TEN-B
FB
FB
FB
FB



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