Diodes AH1751-PGA-A Hall effect latch Datasheet

AH1751
HALL EFFECT LATCH
General Description
Features
•
•
•
•
•
•
•
•
•
Bipolar Hall Effect Latch Sensor
3.5V to 20V DC Operation Voltage
Open Collector Pre-Driver
50mA Output Sink Current
Chip Power Reverse-Connection Protection
o
o
Operating Temperature: -40 C~125 C
Package: SIP3
SIP3: Available in “Green” Molding Compound
(No Br, Sb)
Lead Free Finish/ RoHS Compliant (Note 1)
AH1751 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
go into “ off ” state.
Applications
•
•
•
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Rotor Position Sensing
Current Switch
Encoder
RPM Detection
Ordering Information
AH1751 - X X X - X
Package
Lead Free
Packing
P : SIP3
G : Green
-A : Ammo (Note 3)
-B : Bulk (Note 4)
Device
Package
Code
Packaging
(Note 2)
AH1751-P
P
SIP3
Notes:
Tube/Bulk
Part Number
Quantity
Suffix
1000
-B
Magnetic
Characteristics
A
Ammo Box
Part Number
Quantity
Suffix
4000/Box
-A
1. RoHS revision 13.2.2003. Glass and high temperature solder exemptions applied, see EU Directive Annex Notes 5 and 7.
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. Ammo Box is for SIP3 Spread Lead.
4. Bulk is for SIP3 Straight Lead.
AH1751 Rev. 1 - 2
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AH1751
HALL EFFECT LATCH
Pin Assignment
( Top View )
3. OUT
2. GND
1. VCC
SIP3
Pin Descriptions
Name
VCC
GND
OUT
Description
Input Power
Ground
Output Stage
Block Diagram
VCC
1
REG.
3
OUT
AMP
2 GND
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AH1751
HALL EFFECT LATCH
Absolute Maximum Ratings
Symbol
VCC
Vout (off)
Io (sink)
TA
TST
TJ(MAX)
PD
(TA = 25°C)
Parameter
Supply Voltage
Output “OFF ” Voltage
Output “ON” Current
Operating Temperature Range
Storage Temperature Range
Maximum Junction Temperature
Power Dissipation
Rating
20
20
100
-40~+125
-65~+150
+150
550
SIP3
Unit
V
V
mA
°C
°C
°C
mW
Recommended Operating Conditions
Symbol
VCC
Parameter
Supply Voltage
Electrical Characteristics
Symbol
Vout (SAT)
ICC
Parameter
Output Saturation Voltage
Supply Current
Magnetic Characteristics
A grade
Symbol
Bop
Brp
Bhy
Notes:
Parameter
Operation Point
Release Point
Hysteresis
Conditions
Operating (Note 5)
Rating
3.5 ~ 20
Unit
V
(TA = 25°C)
Conditions
VCC = 12V, OUT ”ON”
Io = 50mA
VCC = 12V, OUT ”OFF”
Min
Typ.
Max
Unit
-
200
300
mV
-
3.5
6
mA
(TA = 25°C, VCC = 4~20V)
Min
5
-70
-
Typ.
75
Max
70
-5
-
(1mT = 10 Gauss)
Unit
Gauss
Gauss
Gauss
5. Operating, the output is switching as magnetic field change (S>300G, N<-300G).
6. Magnetic characteristics are design information, which will vary with supply voltage, operating temperature and after soldering.
AH1751 Rev. 1 - 2
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APRIL 2008
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AH1751
HALL EFFECT LATCH
Operating Characteristics
S
Marking side
N
(Output Voltage)
Vout
Vcc
Vd
High
Bhy
Lo
w
V SA
T
Brp
(SIP3)
0
Bop
( Magnetic Flux Density )
Performance Characteristics
25
550
105
198
TA (°C)
PD (mW)
TA (°C)
PD (mW)
50
440
110
176
P D (m W )
60
396
115
154
70
352
120
132
80
308
125
110
85
286
130
88
90
264
135
66
95
242
140
44
100
220
150
0
P o w e r D is s ip a tio n C u rv e
600
500
400
300
200
100
0
0
25
50
75
100
125
150
T A (° C )
AH1751 Rev. 1 - 2
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© Diodes Incorporated
AH1751
HALL EFFECT LATCH
Marking Information
( Top View )
1751
Y WW X
Y
: Year : "7" = 2007
"8" = 2008
WW : Nth Week 01~52
X : Internal code
A~Z : Green
SIP3
Package Information
(All Dimensions in mm)
(1) Package Type: SIP3 for Bulk pack
0.51m m
NO M
2.00m m
1.15m m
BRANDED
S URFA CE
1
Active Area D epth
2
3
Sensor Location
Package Dimension
AH1751 Rev. 1 - 2
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APRIL 2008
© Diodes Incorporated
AH1751
HALL EFFECT LATCH
Package Information
(Continued)
(2) Package Type: SIP3 for Ammo pack
IMPORTANT NOTICE
Diodes Incorporated and its subsidiaries reserve the right to make modifications, enhancements, improvements, corrections or other changes without further
notice to any product herein. Diodes Incorporated does not assume any liability arising out of the application or use of any product described herein; neither
does it convey any license under its patent rights, nor the rights of others. The user of products in such applications shall assume all risks of such use and will
agree to hold Diodes Incorporated and all the companies whose products are represented on our website, harmless against all damages.
LIFE SUPPORT
Diodes Incorporated products are not authorized for use as critical components in life support devices or systems without the expressed written approval of the
President of Diodes Incorporated.
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© Diodes Incorporated
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