STEVAL-CBL009V1 Datasheet, PDF (1/4 Pages) STMicroelectronics – Selectable output current limit by external resistor

STEVAL-CBL009V1
DiSEqC 1.X-compliant single LNB supply and control IC based on
the LNBH25
Data brief
Features
■ Complete interface between LNB and I²C bus
■ Built-in DC-DC converter for single 12 V supply
operation and high efficiency (typ. 93% @
0.5 A)
■ Selectable output current limit by external
resistor
■ 22 kHz tone waveform integrity guaranteed
also in no load condition
■ Low-drop post regulator and high efficiency
step-up PWM with integrated power N-MOS for
low power loss
■ LPM (low power mode) function to reduce
dissipation
■ Overload and overtemperature internal
protection with I²C diagnostic bits
■ LNB short-circuit dynamic protection
■ DiSEqC 1.x communication
■ RoHS compliant
Description
The STEVAL-CBL009V1 demonstration board
implements a DC-DC converter based on ST’s
LNBH25 device. It is used to power LNBs in dish
antennas to receive satellite TV signals.
It provides good performance at low cost using a
low external component count, and includes all
functions needed for supplying/interfacing LNB
modules in accordance with international
standards.
The device includes an I²C bus interface and,
thanks to a fully integrated step-up DC-DC
converter, it works with a single input voltage
supply ranging from 8 V to 16 V.
February 2013
Doc ID 024060 Rev 1
For further information contact your local STMicroelectronics sales office.
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www.st.com
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