Internal Pull-up Hall Effect Latch Features Bipolar Hall effect l

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Internal Pull-up Hall Effect Latch Features Bipolar Hall effect l

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AH172
Internal Pull-up Hall Effect Latch Features
Bipolar Hall effect latch sensor 3.0V operation voltage Built-in pull-up resistor 25mA output sink current Operating temperature: -20°C 85°C Package: SIP3, SOT23
AH172 single digital output Hall-effect sensor with pull-up resistor high temperature operation. device includes on-chip Hall voltage generator magnetic sensing, amplifier amplify Hall voltage, comparator provide switching hysteresis noise rejection, output driver with pull-up resistor (Rpu). internal bandgap regulator used provide temperature compensated supply voltage internal circuits allows wide operating supply range. While magnetic flux density larger than operate point (Bop), turns (low). removed toward release point (Brp), latched "on" state prior Brp. When Brp, into state.
Applications
Rotor position sensing Current switch Encoder detection
Assignments
(Top view)
(SIP3 package)
Descriptions
Name Description Positive power supply Ground Output stage
SOT23 package)
Ordering Information
AH172
Wafer Body Blank necessary specify
Package SIP3 SOT23
Lead Lead Free Blank: Normal
Packing Blank Tube Bulk Tape Reel
Magnetic Characteristics
This datasheet contains product information. Anachip Corp. reserves rights modify product specification without notice. liability assumed result this product. rights under patent accompany sale product.
Rev. 2004
AH172
Internal Pull-up Hall Effect Latch Block Diagram
REG.
Functional Application Circuit
Digital Hall Effect Sensor Three Phase Hall Motor
Driver Control Logic
sensing
Hall Motor Driver
Phase Hall Motor
Anachip Corp. www.anachip.com.tw
2004
AH172
Internal Pull-up Hall Effect Latch Absolute Maximum Ratings 25°C
Characteristics Supply voltage Output "off voltage Output "on" current Operating temperature range Storage temperature range Power dissipation SOT23 Symbol Values -20~+85 -65~+150 Unit
Vout (off) (sink) Tstg
Electrical Characteristics
Characteristics Supply voltage Output saturation voltage Supply current Internal pull-up resistor Dropout voltage Symbol Vout(sat)
25°C Conditions VCC=12V, "ON" =10mA VCC=12V, "OFF" Vcc-Vce Min. Typ. Max. Unit
Magnetic Characteristics 25°C
(1mT Gauss) grade Characteristics Operate Point Release Point Hysteresis grade Characteristics Operate Point Release Point Hysteresis Symbol Min. Typ. Max. Unit Gauss Gauss Gauss Symbol Min. Typ. Max. Unit Gauss Gauss Gauss
Anachip Corp. www.anachip.com.tw
2004
AH172
Internal Pull-up Hall Effect Latch Operating Characteristics
Vout Output Voltage
High
Marking side
Marking side
SOT23
SIP3
Vsat
Magnetic flux density
Marking Information
SOT23
(Top View) code A~Z: Non-Lead Free Lead Free AH172 Date code Year :Month (A~L)
SIP3
(Top View) code A~Z: Non-Lead Free Lead Free Date code Year week
Anachip Corp. www.anachip.com.tw
2004
AH172
Internal Pull-up Hall Effect Latch Package Information
Package Type: SIP-3L
0.51mm 2.10mm
1.55mm
BRANDED SURFACE
Active Area Depth
Sensor Location
0.38mm 0.7mm
1.57mm 1.47mm 0.41mm 0.41mm
4.17mm 4.04mm 1.27mm
1.82
3.10mm 2.97mm
15.50mm 13.00mm
Package Dimension
Anachip Corp. www.anachip.com.tw
2004
AH172
Internal Pull-up Hall Effect Latch
Package Type: SOT23-3L
Sensing point
0.8mm
1.45mm
1(4x) 0.10 SEATING PLANE 2(4x) b(3x)
VIEW
GAUGE PLANE
VIEW
Symbol
Dimensions Millimeters Min. 1.05 0.05 1.00 0.25 0.08 2.70 1.50 2.60 0.30 0.50 1.80 0.85 Nom. 1.10 2.90 1.60 2.80 0.60 1.90 0.95 Max. 1.35 0.15 1.20 0.50 0.20 3.00 1.70 3.00 0.55 0.70 2.00 1.05
Dimensions Inches Min. 0.041 0.002 0.039 0.010 0.003 0.106 0.059 0.102 0.012 0.020 0.071 0.033 Nom. 0.043 0.114 0.063 0.110 0.024 0.075 0.037 Max. 0.053 0.006 0.047 0.020 0.008 0.118 0.067 0.118 0.022 0.028 0.079 0.041
Anachip Corp. www.anachip.com.tw
2004

Internal Pull-up Hall Effect Latch Features Bipolar Hall effect l

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