3209 查看數據表（PDF） - Allegro MicroSystems
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3209 Datasheet PDF : 12 Pages
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3209 AND 3210
MICROPOWER,
ULTRA-SENSITIVE
HALL-EFFECT SWITCHES
ELECTRICAL CHARACTERISTICS with CBYPASS = 0.1 µF,
over operating voltage and temperature range (unless otherwise specified).
Limits
Characteristic
Symbol
Test Conditions
Min. Typ. Max.
Supply Voltage Range
Output Leakage Current
Output On Voltage
Awake Time
Period
VDD
IOFF
VOUT
tawake
tperiod
Operating1)
2.5
2.75
3.5
VOUT = 3.5 V, BRPN < B < BRPS
–
IOUT = 1 mA, VDD = 2.5 V
–
30
«1.0
1.0
105
300
60
90
A3209Ex
240
480
720
A3210Ex
30
60
90
Duty Cycle
d.c.
A3209Ex
–
12.5
–
A3210Ex
–
0.10
–
Chopping Frequency
Supply Current
(2.5 ≤ VDD ≤3.5 V)
fC
IDD(EN)
IDD(DIS)
IDD(AVG)
Chip awake (enabled)
Chip asleep (disabled)
A3209Ex, VDD = 2.75 V
–
340
–
0.1
–
3.0
1.0
10
50
–
145
425
A3209Ex, VDD = 3.5 V
–
195
425
A3210Ex, VDD = 2.75 V
–
8.8
25
A3210Ex, VDD = 3.5 V
–
13
60
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.
Units
V
µA
mV
µs
µs
ms
%
%
kHz
mA
µA
µA
µA
µA
µA
MAGNETIC CHARACTERISTICS with CBYPASS = 0.1 µF,
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|
–
30
60
-60
-35
–
5.0
22
–
–
-27
-5.0
–
7.7
–
NOTES: 1. As used here, negative flux densities are defined as less than zero (algebraic convention) and -50 G is less than +10 G.
2. Typical Data is at TA = +25°C and VDD = 2.75 V and is for design information only.
Units
G
G
G
G
G
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