LNBH2 Datasheet PDF | STMicroelectronics

STMicroelectronics LNBH2

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.

Part No.	LNBH2
Datasheet	LNBH2 Download
Manufacturer	STMicroelectronics
Description	LNB SUPPLY AND CONTROLLER
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DESCRIPTION

Intended for analog and digital satellite STB receivers/SatTV, sets/PC cards, 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. BLOCK DIAGRAM Gate LNBH21 Step-up PWM Controller Vup-Feedback Sense VoTX Vup VoRX Vcc Byp Preregul.+ U.V.lockout +P.ON res. Linear Post-reg +Modulator +Protections ISEL EXTM SDA SCL V Select I²C interf. Enable Diagnostics ADDR TEN 22KHz Oscill. Tone Detector DETIN DSQOUT DSQIN April 2004 1/20 LNBH21 ORDERING CODES TYPE LNBH21 PowerSO-20 (Tube) LNBH21PD PowerSO-20 (Tape & Reel) LNBH21PD-TR

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Symbol VCC VUP IO VOTX/RX VI VDETIN VOH IGATE VSENSE Tstg Top DC Input Voltage DC Input Voltage Output Current DC Output Pins Voltage Logic Input Voltage (SDA, SCL, DSQIN, ISEL) Detector Input Signal Amplitude Logic High Output Voltage (DSQOUT) Gate Current Current Sense Voltage Storage Temperature Range Operating Ju...