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A8287SLB

P1-P3P4-P6P7-P9P10-P12P13-P15P16-P18
LNB Supply and Control Voltage Regulator
A8285 and
A8287
16
Allegro MicroSystems, LLC
115 Northeast Cutoff
Worcester, Massachusetts 01615-0036 U.S.A.
1.508.853.5000; www.allegromicro.com
Pin Name Pin Description
A8287SLB
SOIC-24
A8285SLB
SOIC-16
SCL I
2
C Clock Input 1 1
SDA I
2
C Data Input/Output 2 2
IRQ Interrupt Request 3 3
GND Ground 4,5,6,7 4
VREG Analog Supply 8 5
VIN Supply Input Voltage 9 6
EXTM External Modulation Input 10 7
ADD Address Select 11 8
TDO Tone Detect Out 12 -
TDI Tone Detect Input 13 -
NC No Connection 14 9
TCAP Capacitor for setting the rise and fall time of the LNB output 15 10
TOUT Tone Generation 16 11
LNB Output voltage to LNB 17 12
GND Ground 18,19 13
LX Inductor drive point 20 14
GND Ground 21,22 -
BOOST Tracking supply voltage to linear regulator 23 15
VCP Gate supply voltage 24 16
Terminal List Table
LNB Supply and Control Voltage Regulator
A8285 and
A8287
17
Allegro MicroSystems, LLC
115 Northeast Cutoff
Worcester, Massachusetts 01615-0036 U.S.A.
1.508.853.5000; www.allegromicro.com
A8285SLB 16-Pin Batwing SOIC
NOTES:
1. Exact body and lead confi guration at vendor’s option within limits shown.
2. Lead spacing tolerance is non-cumulative.
3. Supplied in standard sticks/tubes of 49 devices or add “TR” to part number for tape and reel.
.606
.598
15.39
15.19
.299
.291
7.59
7.39
.414
.398
10.52
10.11
.020
.014
0.51
0.36
.026
REF
0.66
.050
BSC
1.27
.012
.004
0.30
0.10
.104
.096
2.64
2.44
.040
.020
1.02
0.51
.011
.009
0.28
0.23
8º
0º
Dimensions in inches
Metric dimensions (mm) in brackets, for reference only
2176
24 19 18
A8287SLB 24-Pin Batwing SOIC
.406
.398
10.31
10.11
.299
.291
7.59
7.39
.414
.398
10.52
10.11
.020
.014
0.51
0.36
.026
REF
0.66
.050
BSC
1.27
.012
.004
0.30
0.10
.104
.096
2.64
2.44
.040
.020
1.02
0.51
.011
.009
0.28
0.23
8º
0º
Dimensions in inches
Metric dimensions (mm) in brackets, for reference only
21
16
Leads 4 and 13 are connected inside the device package.
Leads 6, 7, 18 and 19 are connected intside the device package.
LNB Supply and Control Voltage Regulator
A8285 and
A8287
18
Allegro MicroSystems, LLC
115 Northeast Cutoff
Worcester, Massachusetts 01615-0036 U.S.A.
1.508.853.5000; www.allegromicro.com
For the latest version of this document, visit our website:
www.allegromicro.com
Allegro MicroSystems, LLC reserves the right to make, from
time to time, such de par tures from the detail spec i fi ca tions as may
be required to permit improvements in the per for mance, reliability,
or manufacturability of its products. Before placing an order, the
user is cautioned to verify that the information being relied upon is
current.
Allegro products are not authorized for use as critical compo-
nents in life-support devices or sys tems without express written
approval.
The in for ma tion in clud ed herein is believed to be ac cu rate and
reliable. How ev er, Allegro MicroSystems, LLC assumes no re-
spon si bil i ty for its use; nor for any in fringe ment of patents or other
rights of third parties which may result from its use.
I
2
C™ is a trademark of Philips Semiconductors.
DiSEqC™ is a registered trademark of Eutelsat S.A.
Copyright©2003-2013 AllegroMicroSystems, LLC
P1-P3P4-P6P7-P9P10-P12P13-P15P16-P18

A8287SLB

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Description:
IC REG CONV RECVRS 1OUT 24SOIC
Lifecycle:
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