Ah1887 – Diodes AH1887 User Manual
Page 2
AH1887
MICROPOWER, ULTRA-SENSITIVE HALL EFFECT
SWITCH
AH1887
Document number: DS31313 Rev. 4 - 2
2 of 7
August 2010
© Diodes Incorporated
Pin Descriptions
Pin Name
P/I/O
Pin #
Description
Out 2
(Note 1)
O 1
Output Pin ( active Low )
GND
P/I 2
Ground
NC
3
No
Connection
Vdd
P/I
4
Power Supply Voltage
Out 1
(Note 1)
O
5
Output Pin ( active Low )
Notes: 1. Output1 responds to South pole; Output2 responds to North pole.
Functional Block Diagram
Out2
GND
Logical
Latch
Latch
Power
switch
Vdd
Hall Plate
Amp
Of
fset
Cancelling
Hall Plate
Amp
Of
fs
e
t
Cance
lli
ng
Out1
GND
Vdd
Absolute Maximum Ratings
(T
A
= 25
°C)
Symbol
Characteristics
Values
Unit
Vdd Supply
voltage
5
V
B
Magnetic flux density
Unlimited
T
S
Storage Temperature Range
-65 to +150
°C
P
D
Package Power Dissipation
230
mW
T
J
Maximum Junction Temperature
150
°C
Recommended Operating Conditions
(T
A
= 25
°C)
Symbol
Parameter
Conditions
Rating
Unit
Vdd
Supply Voltage
Operating
1.65 to 3.3
V
T
A
Operating Temperature Range
Operating
-40 to +85
°C