AH373 INTERNAL PULL-UP HALL EFFECT LATCH Description Pin Assignments AH373 is a single-digital-output Hall-Effect latch 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. An internal bandgap regulator provides a temperature compensated supply voltage for internal circuits and allows a wide operating supply range. (Top View) 3. OUT 2. GND 1. Vdd SIP-3L (Top View) When the magnetic flux density (B) is larger than operate point (Bop), output is switched on (OUT pin is pulled low). The output state is held on until a magnetic flux density reversal falls below Brp. When B is less than Brp, the output is switched off. 3. OUT GND 2. 1. Vdd SC59 The AH373 is available in SIP-3L and SC59 packages. Applications Features • • • • • • • • • • • Bipolar Hall-Effect latch sensor 2.2V to 20V DC operating voltage Built-in pull-up resistor 25mA output sink current Operating temperature: -40°C ~ +125°C SIP-3L and SC59 packages (SC59 is commonly known as SOT23 in Asia) Green Molding Compound (No Br, Sb) (Note 1) Notes: Rotor Position Sensing Current Switch Encoder RPM Detection 1. EU Directive 2002/95/EC (RoHS). All applicable RoHS exemptions applied. Please visit our website at http://www.diodes.com/products/lead_free.html. Typical Application Circuit IA IB M Digital Hall Effect Sensor IC Driver M: Three Phase Hall Motor Ia Ib Ic & Control Logic HA RPM sensing HB HC Hall Motor Driver 3 Phase Hall Motor AH373 Document number: DS31173 Rev. 6 - 2 1 of 9 www.diodes.com July 2010 © Diodes Incorporated AH373 INTERNAL PULL-UP HALL EFFECT LATCH Pin Descriptions Pin Name P/I/O Pin # Vdd GND OUT P P O 1 2 3 Description Positive Power Supply Ground Output Pin Functional Block Diagram Vdd 1 Rpu Regulator Hall plate 23 OUT 2 GND Amp Absolute Maximum Ratings (TA = 25°C) Symbol Vdd VOUT (off) IO (sink) Ts PD Characteristics Values Unit SIP-3L 20 28 25 -65~+150 550 V V mA °C mW SC59 230 mW Supply Voltage Output “Off” Voltage Output “On” Current Storage Temperature Range Power Dissipation Recommended Operating Conditions Symbol Vdd TA Notes: Parameter Supply Voltage (Note 2) Operating Ambient Temperature Conditions Operating Operating Min 2.2 -40 Max 20 125 Unit V °C 2. The output of IC will be switched after the supply voltage is over 2.2V, but the magnetic characteristics won't be normal until the supply is over 2.5V. AH373 Document number: DS31173 Rev. 6 - 2 2 of 9 www.diodes.com July 2010 © Diodes Incorporated AH373 INTERNAL PULL-UP HALL EFFECT LATCH Electrical Characteristics (TA = 25 °C, Vdd = 12V) Symbol VOUT (SAT) Ioff Idd Rpu Characteristics Output Saturation Voltage Output Leakage Current Supply Current Internal Pull-up Resistor Conditions Iout = 20mA B < Brp OUT “OFF” — Min 7 Typ. 300 <0.1 2 10 Max 400 10 4 13 Unit mV uA mA KΩ Magnetic Characteristics (TA = 25 °C, Vdd = 2.5V to 20V, Note 3) Symbol Bops(south pole to brand side) Brps(south pole to brand side) Bhy(|Bopx|-|Brpx|) Notes: Parameter Operation Point Release Point Hysteresis Min 5 -60 - (1mT = 10 Gauss) Max Unit 60 Gauss -5 Gauss Gauss Typ. 30 -30 60 3. Magnetic characteristics may vary with supply voltage, operating temperature and after soldering. Operating Characteristics S S Marking side Marking side N N (SC59) (SIP-3L) (Output Voltage) Output Vdd (off-state) Turn off Bhy Turn on (on-state) VSAT VSAT Brp 0 Bop ( Magnetic Flux D ensity B ) AH373 Document number: DS31173 Rev. 6 - 2 3 of 9 www.diodes.com July 2010 © Diodes Incorporated AH373 INTERNAL PULL-UP HALL EFFECT LATCH Performance Characteristics (1) SIP-3L TA (°C) PD (mW) TA (°C) PD(mW) 25 550 105 198 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 rve 600 500 400 300 200 100 0 00 -4 25 50 75 100 125 150 T A (°C ) (2) SC59 (commonly known as SOT23 in Asia) TA (°C) 25 50 60 70 80 85 90 100 110 120 130 140 150 PD (mW) 230 184 166 147 129 120 110 92 74 55 37 18 0 P D (m W ) P o w e r D is s ip a tio n C u rv e 300 200 100 0 -400 25 50 75 100 125 150 T A (°C ) AH373 Document number: DS31173 Rev. 6 - 2 4 of 9 www.diodes.com July 2010 © Diodes Incorporated AH373 INTERNAL PULL-UP HALL EFFECT LATCH Ordering Information AH373 - X X - X Package P : SIP-3L W : SC59 Device AH373-PL-A AH373-PL-B AH373-PG-A AH373-PG-B AH373-WL-7 AH373-WG-7 Notes: Lead Free Packing L : Lead Free G : Green (Note 4) Bulk Package Packaging Part Code (Note 5, 6) Quantity Number Suffix P SIP-3L NA NA P SIP-3L 1000 -B P SIP-3L NA NA P SIP-3L 1000 -B W SC59 NA NA W SC59 NA NA A : Ammo Box (Note 7) B : Bulk (Note 8) 7 : Tape & Reel 7” Tape and Reel Ammo Box Part Part Quantity Number Quantity Number Suffix Suffix NA NA 4000/Box -A NA NA NA NA NA NA 4000/Box -A NA NA NA NA 3000/Tape & Reel -7 NA NA 3000/Tape & Reel -7 NA NA 4. EU Directive 2002/95/EC (RoHS). All applicable RoHS exemptions applied. Please visit our website at http://www.diodes.com/products/lead_free.html. 5. 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. 6. Reverse taping as shown on Diodes Inc. Surface Mount (SMD) Packaging document AP02007, which can be found on our website http://www.diodes.com/datasheets/ap02007.pdf. 7. Ammo Box is for SIP-3L Spread Lead. 8. Bulk is for SIP-3L Straight Lead. AH373 Document number: DS31173 Rev. 6 - 2 5 of 9 www.diodes.com July 2010 © Diodes Incorporated AH373 INTERNAL PULL-UP HALL EFFECT LATCH Marking Information (1) SIP-3L (Top View) Y : Year : 0~9 WW : Week : 01~52, "52" represents 52 and 53 week X : Internal Code : A~Z : Green a~z : Lead Free 373 Part Number Y WW X (2) SC59 (Commonly known as SOT23 in Asia) (Top View) XX Y W X Part Number AH373 AH373 Document number: DS31173 Rev. 6 - 2 XX : Identification code Y : Year 0~9 W : Week : A~Z : 1~26 week; a~z : 27~52 week; z represents 52 and 53 week X : A~Z : Green a~z : Lead Free Package SC59 6 of 9 www.diodes.com Identification Code P2 July 2010 © Diodes Incorporated AH373 INTERNAL PULL-UP HALL EFFECT LATCH Package Outline Dimensions (All Dimensions in mm) (1) Package Type: SIP-3L for Bulk pack 0.51mm NOM 2.00 +/0.10mm 1.15 +/0.10mm BRANDED SURFACE 1 Active Area Depth 2 3 Sensor Location Package Dimension AH373 Document number: DS31173 Rev. 6 - 2 7 of 9 www.diodes.com July 2010 © Diodes Incorporated AH373 INTERNAL PULL-UP HALL EFFECT LATCH Package Outline Dimensions (Continued) (2) Package Type: SIP-3L for Ammo pack (3) SC59 (Commonly known as SOT23 in Asia) TOP VIEW 1.50/ 1.70 0.35/0.50 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 O /8 O AH373 Document number: DS31173 Rev. 6 - 2 8 of 9 www.diodes.com July 2010 © Diodes Incorporated AH373 INTERNAL PULL-UP HALL EFFECT LATCH IMPORTANT NOTICE DIODES INCORPORATED MAKES NO WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, WITH REGARDS TO THIS DOCUMENT, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE (AND THEIR EQUIVALENTS UNDER THE LAWS OF ANY JURISDICTION). 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