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參數(shù)資料
| 型號： | LNBEH21 |
| 廠商： | 意法半導體 |
| 英文描述： | LNB SUPPLY AND CONTROL IC WITH STEP-UP CONVERTER AND IC INTERFACE |
| 中文描述： | LNB電源與控制集成電路升壓轉換器及IC的接口 |
| 文件頁數(shù)： | 4/22頁 |
| 文件大?。?/td> | 588K |
| 代理商： | LNBEH21 |
LNBEH21
4/22
TYPICAL APPLICATION CIRCUITS
Figure 2: Application Circuit for DiSEqC 1.x and Output Current < 450 mA
Figure 3: Full Application Circuit for Bi-directional DiSEqC 2.0 and Output Current up to 750mA
(*) R-L Filter to be used according to EUTELSAT recommendation to implement the DiSEqC
TM
2.0, (see DiSEqC
TM
implementation section).
If bidirectional DiSEqC
2.0 is not implemented the R-L filter can be removed and the above DiSEqC 1.x circuit can be used.
(**) Do not leave these pins floating if not used.
(***) To be soldered as close as possible to relative pins.
-C8 and D3,4 are needed only to protect the output pins from any negative voltage spikes during high speed voltage transitions.
LNBEH21
12V
L1=22μH
10nF
VoTX
SDA
SCL
470nF
GND
0<V
ADDR
<V
0.1
Ceramic
D2 1N4001
220μF
Ceramic
BAT43
IC1
STS4DNFS30L
IC2
220μF
C9
100μF
Panasonic EXCELS A35
F1
EXTM
DSQOUT
(**)
DETIN
VoRX
to LNB
ISEL
Byp
Set TTX=1
13/18 Selection
3.3K
ADDRESS
VUP
VCC
GATE
SENSE
TEN/VSEL
19
17
16
18
12
13
14
15
7
5
8
9
4
2
3
Vin
C10
(***)
C5(***)
Rsc
C3
(***)
470nF
C1
C4
(***)
470nF
D4
(***)
C2
Axial Ferrite Bead Filter
F1
suggested part number:
MURATA BL01RN1-A62
Tone Enable /
R1
I
2
C Bus
{
270μH
15
LNBEH21
Vup
Gate
Vin
L1=22μH
Sense
Vcc
VoRX
VoTX
(**) DETIN
C7 (***)
100nF
to LNB
SDA
SCL
DSQOUT
TEN/VSEL
ADDRESS
Byp
C5 (***)
0<V
ADDR
<V
BYP
EXTM
C6
Rsc
0.05
GND
C3(***)
470nF
D2 1N4001
C1
220μF
C4 (***)
470nF
D3(***)
D1
STPS3L40A
IC1
MOS
STN4NF03L
D4 (***)
BAT43
C8 (***)
100nF
ISEL
220μF
C2
1C9
F1
Iout<750mA
Iout<450mA
V>3.3V
(or floating)
Axial Ferrite Bead Filter
F1 suggested part number:
Murata BL01RN1-A62
Panasonic EXCELS-A35
(*) see note
Current Limit
Selection
13/18 Selection
3.3K
Tone Enable /
R1
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相關代理商/技術參數(shù) |
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|---|---|
| LNBEH21PD | 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:LNB SUPPLY AND CONTROL IC WITH STEP-UP CONVERTER AND IC INTERFACE |
| LNBEH21PD-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 |
| LNBEH221PD-R | 制造商:STMicroelectronics 功能描述:LNBEH221PD-R - Tape and Reel |
| LNBH2 | 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 |
| LNBH21 | 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 |
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