A8283SLB View Datasheet(PDF) - Allegro MicroSystems
Part Name
Description
MFG CO.
'A8283SLB' PDF : 8 Pages View PDF
8283
LNB SUPPLY AND
CONTROL-VOLTAGE REGULATOR
FUNCTIONAL BLOCK DIAGRAM
47 V
MAX
RS
+
VINT
VOLTAGE
REG.
EN
5V
ENT
CHARGE
PUMP
176 kHz
BOOST
VOLTAGE 0
1
–
7V
+
BUCK
CONV.
VREF
352 kHz
÷2
–
OVER-
+
CURRENT
–
+
25 kΩ
800 mV
–
+
150 mV
÷8 &
WAVESHAPING
22 kHz TONE
TSD
OLF
OVER-
CURRENT
5 kΩ
5 kΩ
1 kΩ
TCAP
MI
MIOUT
LNB
EXTM
Dwg. FP-051-1
Output Voltage Select Table
VSEL0
L
L
L
L
H
H
H
H
VSEL1
L
L
H
H
L
L
H
H
LLC
L
H
L
H
L
H
L
H
VLNB(typ)
13 V
14 V
18 V
19 V
12 V
13 V
20 V
21 V
115 Northeast Cutoff, Box 15036
2
Worcester, Massachusetts 01615-0036 (508) 853-5000
Copyright © 2000, Allegro MicroSystems, Inc.
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