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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
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(c) Diodes Incorporated
AH175
HALL EFFECT LATCH FOR HIGH TEMPERATURE
Pin Assignment
(Top View)
3. OUT 2. GND 1. VCC (SIP-3L package)
Pin Description
Name VCC GND OUT
Description Input Power Ground Output Stage
3. OUT GND 2. 1. VCC (SC59-3L Package)
Block Diagram
VCC 1
REG.
3
AMP
OUT
2 GND
AH175 Rev. 4
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(c) 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
(TA = 25C)
Symbol VCC Vout (off) Io (sink) Top Tstg Tj SIP-3L SC59-3L PD
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 VCC Conditions Operating Rating 3.5 ~ 20 Unit V
Electrical Characteristics
Parameter Output Saturation Voltage Supply Current
(TA = 25C)
Symbol Vout (SAT) ICC
Conditions VCC = 12V, OUT "ON" Io = 10mA VCC = 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
(TA = 25C, VCC = 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
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AH175
HALL EFFECT LATCH FOR HIGH TEMPERATURE
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)
Performance Characteristics (SIP-3L)
TA (C) PD (mW) TA (C) PD (mW)
P D (m W ) 600 500 400 300 200 100 0 0 25 50 75 100 125 150 T A (oC )
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 o w e r D is s ip a tio n C u rv e
AH175 Rev. 4
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(c) Diodes Incorporated
AH175
HALL EFFECT LATCH FOR HIGH TEMPERATURE
Performance Characteristics (SC59-3L)
TA (C) PD (mW)
P D (m W )
300
25 230
50 184
60 166
70 147
80 129
90 110
100 92
110 74
120 55
125 46
130 37
140 18
150 0
P o w e r D is s ip a tio n C u rv e
200
100
0 0 25 50 75 100 125 150
T A (oC )
Marking Information
(1) SC59-3L
(Top View) 3 XX Y M X 1 2 XX : J5: AH175 Y : Year 0~9 M : Month A~L X : Internal code a~z: Lead Free A~Z: Green
Part Number Package ATS137 (2) SIP3-3L
(Top View) 175 Y WW X
SC59-3L
Identification Code JA
Y : Year: "1"=2001 "2"=2002 WW: Nth Week 01~52 X : Internal code a~z: Lead Free
AH175 Rev. 4
5 of 8 www.diodes.com
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(c) Diodes Incorporated
AH175
HALL EFFECT LATCH FOR HIGH TEMPERATURE
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
Package Dimension
AH175 Rev. 4
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(c) Diodes Incorporated
AH175
HALL EFFECT LATCH FOR HIGH TEMPERATURE
Package Information (Continued)
(2) Package Type: SIP-3L for Ammo pack
AH175 Rev. 4
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FEBRUARY 2007
(c) Diodes Incorporated
AH175
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
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.
AH175 Rev. 4
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FEBRUARY 2007
(c) Diodes Incorporated

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