3240
CHOPPER-STABILIZED,
PRECISION
HALL-EFFECT SWITCH
FUNCTIONAL BLOCK DIAGRAM
SUPPLY
TO ALL
SUBCIRCUITS
REG.
OUTPUT
X
CONTROL
CURRENT
LIMIT
<1Ω
GROUND
Dwg. FH-020-1
800
Suffix ‘–LH’ Pinning
(SOT23W)
700
Suffix "–UA"
3
RθJA = 165°C/W
600
500
400
300
200
100
0
Suffix "–LT"
θJA = 180°C/W
Suffix "–LH"
θJA = 228°C/W
R
PTCT
R
V
CC
1
2
Suffix "E–"
Suffix "L–"
140
20
40
60
80
100
120
160
180
Dwg. PH-003-4
°
AMBIENT TEMPERATURE in
C
Dwg. GH-046-2D
115 Northeast Cutoff, Box 15036
Worcester, Massachusetts 01615-0036 (508) 853-5000
3
Copyright © 2000, 2003, 2004 Allegro MicroSystems, Inc.