A3211 ALLEGRO [Allegro MicroSystems], A3211 Datasheet - Page 5

• Manufacturer Part Number: A3211
• Description: Micropower, Ultra-sensitive Hall-effect Switches
• Manufacturer: ALLEGRO [Allegro MicroSystems]

3211 MAGNETIC CHARACTERISTICS
NOTES: 1. Negative flux densities are defined as less than zero (algebraic convention), i.e., -50 G is less than +10 G.
3212 MAGNETIC CHARACTERISTICS
NOTES: 1. Negative flux densities are defined as less than zero (algebraic convention), i.e., -50 G is less than +10 G.
Release Points
Release Points
A3211
A3212
Characteristic
Operate Points
Characteristic
Operate Points
Hysteresis
Hysteresis
2. B
3. Typical Data is at T
4. 1 gauss (G) is exactly equal to 0.1 millitesla (mT).
2. B
3. Typical Data is at T
4. 1 gauss (G) is exactly equal to 0.1 millitesla (mT).
OPx
OPx
and
= operate point (output turns off); B
= operate point (output turns on); B
Symbol
Symbol
B
B
B
B
B
B
B
B
B
B
OPS
OPN
RPS
RPN
HYS
OPS
OPN
RPS
RPN
HYS
A
A
= +25°C and V
= +25°C and V
South pole to branded side; B > B
North pole to branded side; B > B
South pole to branded side; B < B
North pole to branded side; B < B
|B
South pole to branded side; B > B
North pole to branded side; B > B
South pole to branded side; B < B
North pole to branded side; B < B
|B
OPx
OPx
- B
- B
RPx
RPx
|
DD
|
DD
= 2.75 V and is for design information only.
= 2.75 V and is for design information only.
RPx
RPx
= release point (output turns off).
= release point (output turns on).
over operating voltage and temperature range (unless otherwise specified)
over operating voltage and temperature range (unless otherwise specified)
Test Conditions
Test Conditions
OP
RP
OP
RP
OP
RP
OP
RP
, V
, V
, V
, V
, V
, V
, V
, V
OUT
OUT
OUT
OUT
OUT
OUT
OUT
OUT
= Low (Output On)
= High (Output Off)
= High (Output Off)
= Low (Output On)
= Low (Output On)
= High (Output Off)
= High (Output Off)
= Low (Output On)
Micropower, Ultrasensitive
115 Northeast Cutoff, Box 15036
Allegro MicroSystems, Inc.
Worcester, Massachusetts 01615-0036 [phone]
www.allegromicro.com
Min.
Min.
–55
–55
10
10
Hall Effect Switch
–
–
–
–
–
–
Typ.
Typ.
–40
–34
–40
–34
5.9
5.9
37
31
37
31
Limits
Limits
Max.
Max.
–10
–10
55
55
–
–
–
–
–
–
Units
Units
G
G
G
G
G
G
G
G
G
G
5