AH175
HALL EFFECT LATCH FOR HIGH TEMPERATURE
Features
•
•
•
•
•
•
•
•
•
Bipolar Hall Effect Latch Sensor
3.5V to 20V DC Operation Voltage
Open Collector Pre-Driver
25mA Output Sink Current
Chip Power Reverse-Connection Protection
o
o
Operating Temperature: -40 C~150 C
Lead Free Finish/RoHS Compliant for Lead Free
products (Note 1)
Lead Free Packages: SIP-3L, SC59-3L
Green Package: SC59-3L
General Description
AH175 is a single-digital-output Hall-effect sensor for high
temperature operation. The device includes an on-chip Hall
voltage generator for magnetic sensing, an amplifier to amplify
Hall voltage, and a comparator to provide switching hysteresis for
noise rejection, and an open-collector output pre-driver. An
internal band-gap regulator is used to provide temperature
compensated supply voltage for internal circuits and allows a
wide operating supply range.
While the magnetic flux density (B) is larger than threshold Bop,
the OUT pin turns on (low). If B removed toward Brp, the OUT pin
is latched “on” state prior to B < Brp. When B < Brp, the OUT pin
goes into “off ” state.
Applications
•
•
•
•
Rotor Position Sensing
Current Switch
Encoder
RPM Detection
Ordering Information
AH175
-
X X X - X
Package
P: SIP-3L
W: SC59-3L
Lead-Free
L : Lead Free
G : Green (Note 3)
Packing
- 7 : Taping
-B : Bulk (Note 4)
-A : Ammo Box (Note 5)
Magnetic
Characteristics
A or B
Note:
1.
RoHS revision 13.2.2003. Glass and High Temperature Solder Exemptions Applied, see
EU Directive Annex Notes 5 and 7.
Device
AH175-P
AH175-W
Tube/Bulk
Package Packaging Quantity
Part
Code
(Note 2)
Number
Suffix
P
W
SIP-3L
SC59-3L
1000
NA
-B
NA
7” Tape and Reel
Quantity
Part
Number
Suffix
NA
3000/Tape & Reel
NA
Ammo Box
Quantity
Part
Number
Suffix
4000/Box
NA
Lead-free
-A
NA
-7
Note: 2. Pad layout as shown on Diodes Inc. suggested pad layout document AP02001, which can be found on our website at
http://www.diodes.com/datasheets/ap02001.pdf.
3. Green is only available for SC59-3L
4. Bulk is for SIP-3 Straight Lead.
5. Ammo Box is for SIP-3 Spread Lead.
AH175 Rev. 4
1 of 8
www.diodes.com
FEBRUARY 2007
©
Diodes Incorporated
AH175
HALL EFFECT LATCH FOR HIGH TEMPERATURE
Absolute Maximum Ratings
Parameter
Supply Voltage
Output “OFF ” Voltage
Output “ON” Current
Operating Temperature Range
Storage Temperature Range
Maximum Junction Temperature
Power Dissipation
(T
A
= 25°C)
Symbol
V
CC
V
out
(off)
I
o
(sink)
Top
Tstg
T
j
SIP-3L
SC59-3L
P
D
Rating
20
20
25
-40~+150
-65~+150
+150
550
230
Unit
V
V
mA
°C
°C
°C
mW
mW
Recommended Operating Conditions
Parameter
Supply Voltage
Symbol
V
CC
Conditions
Operating
Rating
3.5 ~ 20
Unit
V
Electrical Characteristics
Parameter
Output Saturation Voltage
Supply Current
(T
A
= 25°C)
Symbol
V
out
(
SAT
)
I
CC
Conditions
V
CC
= 12V, OUT ”ON”
I
o
= 10mA
V
CC
= 12V, OUT ”OFF”
Min.
-
-
Typ.
300
3.5
Max.
400
6
Unit
mV
mA
Magnetic Characteristics
A grade
Operation Point
Release Point
Hysteresis
B grade
Operation Point
Release Point
Hysteresis
Symbol
Bop
Brp
Bhy
Symbol
Bop
Brp
Bhy
(T
A
= 25°C, V
CC
= 12V)
(1mT = 10 Gauss)
Min.
15
-60
30
Min.
5
-80
10
Typ.
-
-
80
Typ.
-
-
80
Max.
60
-15
120
Max.
80
-5
160
Unit
Gauss
Gauss
Gauss
Unit
Gauss
Gauss
Gauss
AH175 Rev. 4
3 of 8
www.diodes.com
FEBRUARY 2007
©
Diodes Incorporated
嵌入式系统
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