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Intended for analog and digital satellite STB receivers/SatTV, sets/PC cards, the LNBH21 is a monolithic voltage regulator and interface IC, assembled in POWER SO-20, specifically designed to provide the 13/18V power supply and the 22KHz tone signalling to the LNB downconverter in the antenna or to the multiswitch box. In this application field, it offers a complete solution with extremely low component count, low power dissipation together with simple design and I2CTM standard interfacing.
LNBH21 Maximum Ratings
Symbol
Parameter
Value
Unit
VCC
DC Input Voltage
-0.3 to 16
V
VUP
DC Input Voltage
-0.3 to 25
V
IO
Output Current
Internally Limited
VmA
VOTX/RX
DC Output Pins Voltage
-0.3 to 25
V
VI
Logic Input Voltage (SDA, SCL, DSQIN, ISEL)
-0.3 to 7
V
VDETIN
Detector Input Signal Amplitude
-0.3 to 2
VPP
VOH
Logic High Output Voltage (DSQOUT)
-0.3 to 7
V
IGATE
Gate Current
± 400
mA
VSENSE
Current Sense Voltage
-0.3 to 1
V
VADDRESS
Address Pin Voltage
-0.3 to 7
V
Tstg
Storage Temperature Range
-40 to +150
Top
Operating Junction Temperature Range
40 to +125
Absolute Maximum Ratings are those values beyond which damage to the device may occur. Functional operation nder these condition is not implied
LNBH21 Connection Diagram
LNBH21PD Parameters
Technical/Catalog Information
LNBH21PD
Vendor
STMicroelectronics
Category
Integrated Circuits (ICs)
Package / Case
*
Packaging
Tube
Type
*
Voltage - Input
8 ~ 15 V
Voltage - Output
13.3V, 18V
Number of Outputs
1
Applications
Converter, Analog and Digital Satellite STB Receivers/SatTV