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Manufacturer part number:LNBH221PD-TR
Manufacturer:STMicroelectronics
Description:Converter, Analog and Digital Satellite STB Receivers/SatTV 13.3V 18V DUAL Specialized Voltage Regulator 0°C~85°C LNBH221 36 Pins 220kHz 36 Terminations 36-BSSOP (0.433, 11.00mm Width) Exposed Pad
Case Package:SOT-23
Datasheet:LNBH221PD-TR Datasheet
RoHs Status:non-compliant
The LNBH221PD-TR is a dual LNB supply and control IC with a step-up converter and I2C interface.
All the features are the same for both section
The complete and independent interface between LNBS and relevant I2C bus
Built-in DC-DC controller for single 12 V supply operation and high efficiency (Typ. 93 % @ 500 mA)
LNB output is currently guaranteed up to 500 mA
Both compliant with EUTELSAT and direct output voltage specification accurate built-in 22 kHz tone oscillator suits widely accepted standards
Fast oscillator start-up facilitates DiSEqC? encoding
Built-in 22 kHz tone detector supports bidirectional DiSEqC? 2.0
Semi-low-drop post regulator and high-efficiency step-up PWM for low power loss: Typ. 0.56 W @ 125 mA
Overload and over-temperature internal protections
Overload and over-temperature I2C diagnostic bits
LNB short circuit SOA protection with I2C diagnostic bit
+/- 4 kV ESD tolerant on input/output power pins
General Uses
Industrial
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