參數(shù)資料
型號(hào)： A3212
廠商： Allegro MicroSystems, Inc.
英文描述： MICROPOWER, ULTRA-SENSITIVE HALL-EF FECT SWITCH
中文描述： 微功耗，超靈敏霍爾開(kāi)關(guān)外匯FECT
文件頁(yè)數(shù)： 4/13頁(yè)
文件大?。?/td> 384K
代理商： A3212
A3212
MICROPOWER,
ULTRA-SENSITIVE
HALL-EFFECT SWITCH
115 Northeast Cutoff, Box 15036
Worcester, Massachusetts 01615-0036 (508) 853-5000
4
ELECTRICAL CHARACTERISTICS over operating voltage and temperature range (unless
otherwise specified).
Limits
Characteristic
Symbol
Test Conditions
Min.
Typ.
Max.
Units
Operate Points
B
OPS
South pole to branded side
–
37
55
G
B
OPN
North pole to branded side
-55
-40
–
G
Release Points
B
RPS
South pole to branded side
10
31
–
G
B
RPN
North pole to branded side
–
-34
-10
G
Hysteresis
B
hys
|B
OPx
- B
RPx
|
–
5.9
–
G
NOTES: 1. Negative flux densities are defined as less than zero (algebraic convention), i.e., -50 G is less than +10 G.
2. B
OPx
= operate point (output turns on); B
RPx
= release point (output turns off).
3. Typical Data is at T
A
= +25
°
C and V
DD
= 2.75 V and is for design information only.
4. 1 gauss (G) is exactly equal to 0.1 millitesla (mT).
MAGNETIC CHARACTERISTICS over operating voltage and temperature range (unless
otherwise specified).
Limits
Characteristic
Symbol
Test Conditions
Min.
Typ.
Max.
Units
Supply Voltage Range
V
DD
Operating
1
2.5
2.75
3.5
V
Output Leakage Current
I
OFF
V
OUT
= 3.5 V, B
RPN
< B < B
RPS
–
<1.0
1.0
μ
A
Output On Voltage
V
OUT
I
OUT
= 1 mA, V
DD
= 2.75 V
–
100
300
mV
Awake Time
t
awake
–
45
90
μ
s
Period
t
period
–
45
90
ms
Duty Cycle
d.c.
–
0.1
–
%
Chopping Frequency
f
C
–
340
–
kHz
Supply Current
I
DD(EN)
Chip awake (enabled)
–
–
2.0
mA
I
DD(DIS)
Chip asleep (disabled)
–
–
8.0
μ
A
I
DD(AVG)
V
DD
= 2.75 V
–
5.1
10
μ
A
V
DD
= 3.5 V
–
6.7
10
μ
A
NOTES: 1. Operate and release points will vary with supply voltage.
2. B
OPx
= operate point (output turns on); B
RPx
= release point (output turns off).
3. Typical Data is at T
A
= +25
°
C and V
DD
= 2.75 V and is for design information only.
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