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參數資料
| 型號： | LNBH221 |
| 廠商： | 意法半導體 |
| 英文描述： | DUAL LNB SUPPLY AND CONTROL IC WITH STEP-UP CONVERTER AND I2C INTERFACE |
| 中文描述： | 雙LNB電源與控制集成電路升壓轉換器和I2C接口 |
| 文件頁數： | 1/18頁 |
| 文件大?。?/td> | 515K |
| 代理商： | LNBH221 |
1/18
April 2004
I
ALL THE FEATURES ARE THE SAME FOR
BOTH SECTION
COMPLETE AND INDEPENDENT
INTERFACE BETWEEN LNBs AND
RELEVANT I
2
C
TM
BUS
BUILT-IN DC/DC CONTROLLER FOR
SINGLE 12V SUPPLY OPERATION AND
HIGH EFFICIENCY (Typ. 93% @ 500mA)
LNB OUTPUT CURRENT GUARANTEED UP
TO 500mA
BOTH COMPLIANT WITH EUTELSAT AND
DIRECTV OUTPUT VOLTAGE
SPECIFICATION
ACCURATE BUILT-IN 22KHz TONE
OSCILLATOR SUITS WIDELY ACCEPTED
STANDARDS
FAST OSCILLATOR START-UP FACILITATES
DiSEqC
TM
ENCODING
BUILT-IN 22KHz TONE DETECTOR
SUPPORTS BI-DIRECTIONAL DiSEqC
TM
2.0
SEMI-LOWDROP POST REGULATOR AND
HIGH EFFICIENCY STEP-UP PWM FOR
LOW POWER LOSS: Typ. 0.56W @ 125mA
TWO OUTPUT PINS SUITABLE TO BYPASS
THE OUTPUT R-L FILTER AND AVOID ANY
TONE DISTORSION (R-L FILTER AS PER
DiSEqC 2.0 SPECs, see application circuit on
pag. 4)
OVERLOAD AND OVER-TEMPERATURE
INTERNAL PROTECTIONS
OVERLOAD AND OVER-TEMPERATURE I
2
C
DIAGNOSTIC BITs
LNB SHORT CIRCUIT SOA PROTECTION
WITH I
2
C DIAGNOSTIC BIT
+/- 4KV ESD TOLERANT ON INPUT/
OUTPUT POWER PINS
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DESCRIPTION
Intended for analog and digital DUAL Satellite
STB
receivers/SatTV,
LNBH221 is a voltage regulator and interface IC,
assembled
in
POWER
designed to provide the power 13/18V, and the
22KHz tone signalling for two independent LNB
down converters or to a multiswitch box that could
be independently powered and set. In this applica-
tion field, it offers a complete solution with ex-
sets/PC
cards,
the
SO-36,
specifically
tremely low component count, low power dissipa-
tion together with simple design and I
2
C
TM
stan-
dard interfacing.
LNBH221
DUAL LNB SUPPLY AND CONTROL IC
WITH STEP-UP CONVERTER AND I
2
C INTERFACE
This is preliminary information on a new product now in development are or undergoing evaluation. Details subject to change without notice.
PowerSO-36
PRELIMINARY DATA
BLOCK DIAGRAM
LNBH221- section A
LNBH221- section B
DSQIN
Vup
VoRX
SCL
Vcc
DSQOUT
VoTX
DETIN
Byp
Gate
Sense
EXTM
ADDR
Enable
U.V.lockout
+P.ON res.
+P.ON res.
V Select
L+Modulator
+Modulator
Diagn.
I2C
Tone
Tone
Oscill.
TEN
Step-up
DSQIN
Vup
VoRX
SCL
Vcc
DSQOUT
VoTX
DETIN
Byp
Gate
Sense
EXTM
ADDR
Enable
U.V.lockout
+P.ON res.
+P.ON res.
V Select
+Modulator
+Modulator
Diagn.
I2C
Tone
Tone
Oscill.
TEN
Step-up
SDA
22KHz
Controller
Step-up
Preregul.+
Linear Post-reg
SDA
22KHz
Controller
Step-up
Preregul.+
Linear Post-reg
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| LNBH21PD | LNB SUPPLY AND CONTROL IC WITH STEP-UP CONVERTER AND I2C INTERFACE |
| LNBH21PD-TR | LNB SUPPLY AND CONTROL IC WITH STEP-UP CONVERTER AND I2C INTERFACE |
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相關代理商/技術參數 |
參數描述 |
|---|---|
| LNBH221/1TM | 制造商:STMicroelectronics 功能描述:LNB SUPPLY/CONTROL REGULATOR, 36 Pin, Plastic, SSOP |
| LNBH221/1TM-TR | 制造商:STMicroelectronics 功能描述:LNB SUPPLY/CONTROL REGULATOR, 36 Pin, Plastic, SSOP |
| LNBH221_06 | 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:Dual LNB supply and control IC with Step-Up converter and I2C interface |
| LNBH221PD | 功能描述:IC LNB SUPP&CTRL DUAL 36-PWRSOIC RoHS:是 類別:集成電路 (IC) >> PMIC - 穩壓器 - 專用型 系列:- 產品培訓模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標準包裝:2,000 系列:- 應用:電源，ICERA E400，E450 輸入電壓:4.1 V ~ 5.5 V 輸出數:10 輸出電壓:可編程 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:42-WFBGA，WLCSP 供應商設備封裝:42-WLP 包裝:帶卷 (TR) |
| LNBH221PD-TR | 功能描述:其他電源管理 LNB 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 安裝風格:SMD/SMT 封裝 / 箱體:VQFN-48 封裝:Reel |
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