參數(shù)資料
型號(hào)： LNBP9K7-R
廠商： STMICROELECTRONICS
元件分類： 穩(wěn)壓器
英文描述： 0.8 A SWITCHING REGULATOR, PSSO7
封裝： LEAD FREE, SPAK-7
文件頁(yè)數(shù)： 1/13頁(yè)
文件大小： 205K
代理商： LNBP9K7-R
September 2006
Rev. 3
1/13
13
LNBP8
LNBP9
LNB Supply and control voltage regulator
Feature summary
■ Simplest integrated solution for the LNB
remote supply and control
■ 500mA Guaranteed output current
■ Dual input supply for reducing power
dissipation
■ 22KHZ Built-in tone oscillator (LNBP9 version)
■ Fast oscillator start-up for DiSEqCTM encoding
(LNBP9 version)
■ Auxiliary modulation input for more flexibility
(LNBP8 version)
■ Stand-by function
■ Short circuit and overtemperature protection
■ Available in through-hole package
Description
Intended for analog and digital satellite receivers,
the LNBP is a monolithic linear voltage regulator,
assembled in PowerFlexTM, specifically designed
to provide the powering voltages and the
interfacing signals to the LNB down-converter.
The regulator output can be logic controlled to be
13V or 18V (typ.) by mean of the VSEL pin for the
remote controlling of the LNB. In order to reduce
the power dissipation of the device when the
lowest output voltage is selected, the regulator
has 2 supply inputs (VCC1 and VCC2). They must
be powered respectively at 15V (min.) and 22V
(min.), and an internal switch will automatically
select the appropriate supply voltage according to
the selected output voltage.
..The TONE pin (only for the LNBP9 version)
activates the internal oscillator so that the DC
output is modulated by a 22KHz square wave.
This internal oscillator is factory trimmed within a
tolerance of +/- 2KHz, thus no further adjustment
or external components are required. A burst
coding of the 22KHz tone can be accomplished
thanks to the fast response of the TONE input and
the prompt oscillator start-up. This helps
designers which want to implement the
DiSEqCTM protocols. In order to improve design
flexibility and to allow implementation of other
LNB remote control standards, an analogic
modulation input pin (EXTM) is available (LNBP8
version only). An appropriate DC blocking
capacitor must be used to couple the modulating
signal source to the EXTM pin. Both versions
integrate thermal and short circuit protection. The
device is packaged in PowerFlex for an easy
through-hole mounting. If an adequate Heatsink is
provided and higher power losses are acceptable,
both supply pins can be powered by the same
23V source without affecting any other circuit
performance.
When the IC is powered and put in Stand-by (EN
pin LOW), the regulator output is disabled and the
IC power consumption is reduced to 300A typ.
SPAK-7L
(PowerFlexTM)
Order code
Part number
Package
Packaging
SPAK-7L
Tape & reel
LNBP8
LNBP8K7
LNBP8K7-R
LNBP9
LNBP9K7
LNBP9K7-R
Obsolete
Product(s)
- Obsolete
Product(s)
Obsolete
Product(s)
- Obsolete
Product(s)
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
LNBP9LIT 功能描述:其他電源管理 18 V 500 mA RoHS:否 制造商:Texas Instruments 輸出電壓范圍: 輸出電流:4 mA 輸入電壓范圍:3 V to 3.6 V 輸入電流: 功率耗散: 工作溫度范圍:- 40 C to + 110 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:VQFN-48 封裝:Reel
LNBP9V7V 制造商:STMicroelectronics 功能描述:REG STD LIN SELECTABLE POS 13V/18V 0.5A 7PIN HEPTAWATT V - Rail/Tube
LNBS21 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:LNB SUPPLY AND CONTROL IC WITH STEP-UP CONVERTER AND I2C INTERFACE
LNBS21_04 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:LNB SUPPLY AND CONTROL IC WITH STEP-UP CONVERTER AND I2C INTERFACE
LNBS21PD 功能描述:其他電源管理 LNBP Supply/Control RoHS:否 制造商:Texas Instruments 輸出電壓范圍: 輸出電流:4 mA 輸入電壓范圍:3 V to 3.6 V 輸入電流: 功率耗散: 工作溫度范圍:- 40 C to + 110 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:VQFN-48 封裝:Reel
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