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AH173
INTERNAL PULL-UP HALL EFFECT LATCH FOR HIGH TEMPERATURE
Features
* * * * * * * * Bipolar Hall Effect Latch Sensor 3V to 20V DC Operation Voltage Built-in Pull-Up Resistor 25mA Output Sink Current Operating Temperature: -40C ~ +125C Lead Free Finish/RoHS Compliant for Lead Free products (Note 1) Lead Free Package: SIP-3L, SC59-3L Green Package: SC59-3L
General Description
AH173 is a single-digital-output Hall-effect sensor with pull-up resistor 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 output driver with a pull-up resistor (Rpu). 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 operate point (Bop), the OUT pin turns on (low). If B moves toward release point (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
AH 173
-XX
X-X
Package P: SIP-3L W: SC59-3L
Lead-Free
Packing
- 7 : Taping L : Lead Free G : Green (Note3) - 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
Package Packaging Code (Note 2)
P W SIP3-3L SC59-3L
Tube/Bulk Quantity Part Number Suffix
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
AH173-P AH173-W
-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.
AH173 Rev. 4
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(c) Diodes Incorporated
AH173
INTERNAL PULL-UP HALL EFFECT LATCH FOR HIGH TEMPERATURE
Pin Assignment
(Top View)
3. OUT 2. GND 1. VCC (SIP-3L package)
Pin Description
Name
Description
VCC GND OUT
Positive Power Supply Ground Output Stage
3. OUT GND 2. 1. VCC (SC59-3L Package)
Block Diagram
VCC 1
REG.
Rpu 3
AMP
OUT
2 GND
AH173 Rev. 4
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(c) Diodes Incorporated
AH173
INTERNAL PULL-UP HALL EFFECT LATCH FOR HIGH TEMPERATURE
Functional Application Circuit
IA IB
M
Digital Hall Effect Sensor
Driver & Control Logic
IC Ia Ib Ic RPM sensing M: Three Phase Hall Motor
HA HB HC Hall Motor Driver
3 Phase Hall Motor
Absolute Maximum Ratings
(TA = 25C)
Characteristics
Supply Voltage Output "Off" Voltage Output "On" Current Operating Temperature Range Storage Temperature Range Maximum Junction Temperature Power Dissipation SIP-3L SC59-3L
Symbol VCC Vout (off) Io (sink) Top Tstg Tj
PD
Values 20 20 25 -40~+125 -65~+150 +150 550 230
Unit V V mA C C C mW mW
Electrical Characteristics (TA = 25C) Characteristics Supply Voltage Symbol Vcc Conditions Min. 3 Typ. Max. 20 Unit V
Output Saturation Voltage Supply Current Internal Pull-up Resistor Dropout Voltage
Vout (sat) Icc Rpu Vd
VCC = 12V, OUT "ON" Io = 10mA VCC = 12V, OUT "OFF" Vd = Vcc - Vce
7 -
300 3.5 10 -
400 6 13 0.3
mV mA K V
AH173 Rev. 4
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(c) Diodes Incorporated
AH173
INTERNAL PULL-UP HALL EFFECT LATCH FOR HIGH TEMPERATURE
Functional Application Circuit
(1mT = 10 Gauss)
A grade Characteristics Operation Point Release Point Hysteresis B grade Characteristics Operation Point Release Point Hysteresis Symbol Bop Brp Bhy Symbol Bop Brp Bhy Min. 15 -60 Min. 5 -80 Typ. 80 Typ. 80 Max. 60 -15 Max. 80 -5 Unit Gauss Gauss Gauss Unit Gauss Gauss Gauss
Operating Characteristics
Vout (Output Voltage) Vcc
High
S
S
Marking Side
Vd
Bhy
Low
Marking Side
N ( SC59 )
N (SIP3)
VSAT Brp 0 Bop
(Magnetic Flux Density)
AH173 Rev. 4
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AH173
INTERNAL PULL-UP HALL EFFECT LATCH FOR HIGH TEMPERATURE
Performance Characteristics (SIP-3L)
TA (C) PD (mW) TA (C) PD(mW) 25 550 105 198 50 440 110 176 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 D (m W ) 600 500 400 300 200 100 0 0 25
P o w e r D is s ip a tio n C u rv e
50
75
100
125
150 TA ( C)
Performance Characteristics (SC59-3L)
TA (C) 25 50 60 70 80 85 90 100 110 120 125 130 140 150
PD (mW) 230
184
166
147
129
120
110
92
74
55
46
37
18
0
P D (m W )
300
P o w e r D is s ip a t io n C u r v e
200
100
0 0 25 50 75 100 125 150
T
A
(C )
AH173 Rev. 4
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(c) Diodes Incorporated
AH173
INTERNAL PULL-UP HALL EFFECT LATCH FOR HIGH TEMPERATURE
Marking Information
(1) SC59-3L
(Top View) 3 XX Y M X 1 2 XX : J3: AH173 Y : Year 0~9 M : Month A~L X : Internal code a~z: Lead Free A~Z: Green
Part Number Package Identification Code AH173 SC59-3L J3 (2) SIP-3L
(Top View) 173 Y WW X Y : Year: "1"=2001 "2"=2002 WW: Nth Week 01~52 X : Internal code a~z: Lead Free
Package Information
(1) Package Type: SIP-3L for Bulk pack
0.51m m NO M 2.00m m
1.15m m
BRANDED SURFACE
1
2
3
Active Area D epth
Sensor Location
AH173 Rev. 4
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AH173
INTERNAL PULL-UP HALL EFFECT LATCH FOR HIGH TEMPERATURE
Package Information (Continued)
Package Dimension
(2) Package Type: SIP-3L for Ammo pack
AH173 Rev. 4
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(c) Diodes Incorporated
AH173
INTERNAL PULL-UP HALL EFFECT LATCH FOR HIGH TEMPERATURE
Package Information (Continued)
(3) Package Type: SC59-3L
0.35/0.50
1.50/ 1.70
TOP VIEW
2.70/ 3.00
1.90 2.90/3.10 1.00/ 1.30 0.10/0.20
0.013/0.10
0.95
0.35/0.55 0/8
Sensor Location
AH173 Rev. 4
8 of 9 www.diodes.com
FEBRUARY 2007
(c) Diodes Incorporated
AH173
INTERNAL PULL-UP HALL EFFECT LATCH FOR HIGH TEMPERATURE
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.
AH173 Rev. 4
9 of 9 www.diodes.com
FEBRUARY 2007
(c) Diodes Incorporated

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