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參數(shù)資料
| 型號： | A8285SLB |
| 廠商： | Allegro MicroSystems, Inc. |
| 英文描述： | LNB Supply and Control Voltage Regulator |
| 中文描述： | LNB電源和控制穩(wěn)壓器 |
| 文件頁數(shù)： | 1/17頁 |
| 文件大?。?/td> | 527K |
| 代理商： | A8285SLB |
D
2
A8285/A8287
LNB Supply and Control Voltage Regulator
Intended for analog and digital satellite receivers, the LNB (low noise
block) converter regulator is a monolithic linear and switching voltage
regulator, speci
fi
cally designed to provide power and interface signals
to an LNB downconverter, via coaxial cable.
The device uses a 2-wire bidirectional serial interface, compatible with
the I
2
C (Inter-C bus) standard, that operates up to 400 kHz.
The A8285 is supplied in a 16-lead plastic power SOIC with copper
batwing tabs (suf
fi
x
LB
). The A8287 is supplied in a 24-lead plastic
power SOIC with copper batwing tabs (part number suf
fi
x
LB
).
LNB selection and standby function
Provides up to 500 mA load current
Two-wire serial I
2
C interface
Built-in tone oscillator, factory-trimmed to 22 kHz; facilitates
DiSEqC 2.0 encoding
Auxiliary modulation input
22 kHz tone detector facilitates DiSEqC decoding
(A8287 only)
Tracking switch-mode power converter for lowest dissipation
LNB overcurrent protection and diagnostics
Internal overtemperature protection
LNB voltages (16 possible levels) compatible with all common
standards
Use the following complete part numbers when ordering:
Part Number
Package
A8287SLB
24-pin, batwing SOIC
A8285SLB
16-pin, batwing SOIC
Preliminary Data Sheet
Subject to Change without Notice
January 21, 2004
AB SO LUTE MAX MUM RAT NGS
8
ADD
4
GND
7
EXTM
3
IRQ
6
VIN
2
SDA
5
VREG
9
NC
13
GND
10
TCAP
14
LX
11
TOUT
15
BOOST
12
LNB
16
VCP
1
SCL
A8287SlB
SOIC
Description
All features
Tone detect not provided
Load Supply Voltage, V
IN
....................................
16 V
Output Current, I
OUT
..................
Internally Limited
*
Output Voltage
LNB, BOOST .....................
–0.3 V to 28 V
TOUT.................................
–0.3 V to 22 V
Logic Input
EXTM...................................
–0.3 V to 5 V
Other ....................................
–0.3 V to 7 V
Logic Output........................................
–0.3 V to 7 V
Package Power Dissipation ………..See power dis si-
pation information in the Application Information section
Operating Temperature
Ambient, T
A
.......................
–20°C to +85°C
Junction, T
J
.......................
–20°C to +150°C
Storage,T
S
.......................
–55°C to +150°C
* Output current rating may be limited by duty cycle,
ambient temperature, and heat sinking. Under any
set of conditions,
do not exceed
the speci
fi
ed current
rating or a junction temperature of +150°C.
13
TDI
14
NC
TCAP
15
16
TOUT
17
LNB
21
GND
LX
18
GND
22
GND
19
GND
23
BOOST
20
24
VCP
12
TDO
11
ADD
10
EXTM
9
VIN
8
VREG
4
GND
GND
7
GND
3
IRQ
6
GND
2
SDA
5
1
SCL
A8285SlB
SOIC
FEATURES
Scale 1:1
Scale 1:1
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| A8285SLB-T | 制造商:Allegro MicroSystems LLC 功能描述: |
| A8285SLBTR | 功能描述:IC REG LNB SUPPLY/CTRL 16-SOIC RoHS:否 類別:集成電路 (IC) >> PMIC - 穩(wěn)壓器 - 專用型 系列:- 產(chǎn)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(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 供應商設備封裝:42-WLP 包裝:帶卷 (TR) |
| A8285SLBTR-T | 功能描述:IC LNB SUPPLY/VOLTAGE REG 16SOIC RoHS:是 類別:集成電路 (IC) >> PMIC - 穩(wěn)壓器 - 專用型 系列:- 標準包裝:2,000 系列:- 應用:控制器，DSP 輸入電壓:4.5 V ~ 25 V 輸出數(shù):2 輸出電壓:最低可調(diào)至 1.2V 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:30-TFSOP（0.173"，4.40mm 寬） 供應商設備封裝:30-TSSOP 包裝:帶卷 (TR) |
| A8286 | 制造商:ALLEGRO 制造商全稱:Allegro MicroSystems 功能描述:Dual LNB Supply and Control Voltage Regulator |
| A8286SETTR-T | 功能描述:IC REG LNB SUPPLY/CONTROL 28-MLP RoHS:是 類別:集成電路 (IC) >> PMIC - 穩(wěn)壓器 - 專用型 系列:- 產(chǎn)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(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 供應商設備封裝:42-WLP 包裝:帶卷 (TR) |
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