A3212EEHLT Просмотр технического описания (PDF) - Allegro MicroSystems
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A3212EEHLT Datasheet PDF : 12 Pages
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A3212
MICROPOWER,
ULTRA-SENSITIVE
HALL-EFFECT SWITCH
ELECTRICAL CHARACTERISTICS over operating voltage and temperature range (unless
otherwise specified).
Limits
Characteristic
Symbol
Test Conditions
Min. Typ. Max. Units
Supply Voltage Range
Output Leakage Current
Output On Voltage
Awake Time
Period
Duty Cycle
VDD
IOFF
VOUT
tawake
tperiod
d.c.
Operating1
2.5
2.75
3.5
V
VOUT = 3.5 V, BRPN < B < BRPS
–
IOUT = 1 mA, VDD = 2.75 V
–
–
<1.0
1.0
µA
100
300
mV
45
90
µs
–
45
90
ms
–
0.1
–
%
Chopping Frequency
Supply Current
fC
IDD(EN)
IDD(DIS)
IDD(AVG)
Chip awake (enabled)
Chip asleep (disabled)
VDD = 2.75 V
–
340
–
kHz
–
–
2.0
mA
–
–
8.0
µA
–
5.1
10
µA
VDD = 3.5 V
–
6.7
10
µA
NOTES: 1. Operate and release points will vary with supply voltage.
2. BOPx = operate point (output turns on); BRPx = release point (output turns off).
3. Typical Data is at TA = +25°C and VDD = 2.75 V and is for design information only.
MAGNETIC CHARACTERISTICS over operating voltage and temperature range (unless
otherwise specified).
Limits
Characteristic
Symbol
Test Conditions
Min. Typ. Max.
Operate Points
Release Points
Hysteresis
BOPS
BOPN
BRPS
BRPN
Bhys
South pole to branded side
North pole to branded side
South pole to branded side
North pole to branded side
|BOPx - BRPx|
–
37
55
-55
-40
–
10
31
–
–
-34
-10
–
5.9
–
Units
G
G
G
G
G
NOTES: 1. Negative flux densities are defined as less than zero (algebraic convention), i.e., -50 G is less than +10 G.
2. BOPx = operate point (output turns on); BRPx = release point (output turns off).
3. Typical Data is at TA = +25°C and VDD = 2.75 V and is for design information only.
4. 1 gauss (G) is exactly equal to 0.1 millitesla (mT).
115 Northeast Cutoff, Box 15036
4
Worcester, Massachusetts 01615-0036 (508) 853-5000
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