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參數(shù)資料
| 型號(hào)： | LNBP21PD |
| 廠商： | 意法半導(dǎo)體 |
| 英文描述： | LNBP SUPPLY AND CONTROL IC WITH STEP-UP CONVERTER AND I2C INTERFACE |
| 中文描述： | LNBP電源和控制集成電路升壓轉(zhuǎn)換器和I2C接口 |
| 文件頁數(shù)： | 4/20頁 |
| 文件大小： | 693K |
| 代理商： | LNBP21PD |
LNBP21
4/20
TABLE A: PIN CONFIGURATIONS
SYMBOL
NAME
FUNCTION
PIN NUMBER
vs PACKAGE
SO-20
PowerSO-20
V
CC
Supply Input
8V to 15V supply. A 220μF bypass capacitor to
GND with a 470nF (ceramic) in parallel is
recommended
External MOS switch Gate connection of the
step-up converter
Current Sense comparator input. Connected to
current sensing resistor
Input of the linear post-regulator. The voltage on this
pin is monitored by internal step-ut controller to
keep a minimum dropout across the linear pass
transistor
Output of the linear post regulator modulator to the
LNB. See truth table for voltage selections.
Bidirectional data from/to I
2
C bus.
Clock from I
2
C bus.
When the TEN bit of the System Register is LOW,
this pin will accept the DiSEqC code from the main
μ
controller. The LNBP21 will use this code to
modulate the internally generated 22kHz carrier. Set
to GND thi pin if not used.
22kHz Tone Detector Input. Must be AC coupled to
the DiSEcQ bus.
Open collector output of the tone Detector to the
main
μ
controller for DiSEcQ data decoding. It is
LOW when tone is detected.
External Modulation Input. Need DC decoupling to
the AC source. If not used, can be left open.
Circuit Ground. It is internally connected to the die
frame for heat dissipation.
Needed for internal preregulator filtering
In standby mode the power switch between LT1
and LT2 is closed. Max allowed current is 900mA.
this pin can be left open if loopthrough function is
not needed.
Same as above
2
C bus addresses available by setting the
Address Pin level voltage
19
18
GATE
Exrernal Switch Gate
17
17
SENSE
Current Sense Input
14
16
V
up
Step-up Voltage
20
19
OUT
Output Port
1
2
SDA
Serial Data
11
12
SCL
Serial Clock
12
13
DSQIN
DiSEqC Input
13
14
DETIN
Detector In
9
9
DSQOUT DiSEqC Output
10
15
EXTM
Extrernal Modulator
4
5
GND
Ground
5, 6, 15, 16
1, 10, 11, 20
BYP
LT1
Bypass Capacitor
Loop Through Switch
8
3
8
4
LT2
ADDR
Loop Through Switch
Address Setting
2
7
3
7
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| LNBP21PD-TR | 功能描述:其他電源管理 LNB Supply/Cont IC 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 |
| LNBP8 | 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:LNB Supply and control voltage regulator |
| LNBP8_06 | 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:LNB Supply and control voltage regulator |
| LNBP8K7 | 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:LNB Supply and control voltage regulator |
| LNBP8K7-R | 功能描述:IC LNB SUPPLY & CONTROL SPAK-7 RoHS:是 類別:集成電路 (IC) >> PMIC - 穩(wěn)壓器 - 專用型 系列:- 產(chǎn)品培訓(xùn)模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標(biāo)準(zhǔn)包裝:2,000 系列:- 應(yīng)用:電源，ICERA E400，E450 輸入電壓:4.1 V ~ 5.5 V 輸出數(shù):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(yīng)商設(shè)備封裝:42-WLP 包裝:帶卷 (TR) |
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