AH3777 HIGH-VOLTGAE LOW-SENSITIVITY HALL EFFECT LATCH Description Pin Assignments The AH3777 is a high voltage, low sensitivity Hall effect latch IC designed for commutation of brushless DC motors, flow meters, linear encoders and position sensors in industrial and consumer home appliance and personal care applications. To support a wide range of demanding applications, the design is optimized to operate over the supply range of 3.0V to 28V. With chopper-stabilized architecture and an internal bandgap regulator to provide temperature compensated supply for internal circuits, the AH3777 provides a reliable solution over the whole operating range. For robustness and protection, the device has a reverse blocking diode with a Zener clamp on the supply. The output has an overcurrent limit and a Zener clamp. (Top View) 3 OUTPUT GND 2 1 VDD SOT23 (Top View) The single, open-drain output can be switched on with South pole of sufficient strength and switched off with North pole of sufficient strength. When the magnetic flux density (B) perpendicular to the package is larger than the operate point (BOP) the output is switched 3. OUTPUT 2. GND 1. VDD on (pulled low). The output is held latched until magnetic flux density reverses and becomes lower than the release point (BRP). SIP-3 Features Applications • • • Bipolar Latch Operation (South Pole: On, North Pole: off) 3.0V to 28V Operating Voltage Range Low Sensitivity: BOP and BRP of +140G and -140G Typical • • Single, Open-Drain Output with Overcurrent Limit Chopper Stabilized Design Provides Superior Temperature Stability Minimal Switch Point Drift Enhanced Immunity to Stress Good RF Noise Immunity Reverse Blocking Diode and Zener Clamp on Supply -40°C to +125°C Operating Temperature ESD (HBM): 6kV Industry Standard SOT23 and SIP-3 Packages Totally Lead-Free & Fully RoHS Compliant (Notes 1 & 2) Halogen and Antimony Free. “Green” Device (Note 3) • • • • • • • • • • • • Notes: Brushless DC Motor Commutation Revolution Per Minute (RPM) Measurement Flow Meters Angular and Linear Encoder and Position Sensors Contactless Commutation, Speed Measurement and Angular Position Sensing/Indexing in Consumer Home Appliances, Office Equipment and Industrial Applications 1. No purposely added lead. Fully EU Directive 2002/95/EC (RoHS) & 2011/65/EU (RoHS 2) compliant. 2. See http://www.diodes.com/quality/lead_free.html for more information about Diodes Incorporated’s definitions of Halogen- and Antimony-free, "Green" and Lead-free. 3. Halogen- and Antimony-free "Green” products are defined as those which contain <900ppm bromine, <900ppm chlorine (<1500ppm total Br + Cl) and <1000ppm antimony compounds. AH3777 Document number: DS37902 Rev. 1 - 2 1 of 13 www.diodes.com September 2015 © Diodes Incorporated AH3777 Typical Applications Circuit 3.0V to 28V VDD RL OUTPUT AH3777 CIN GND Note: 4. CIN is for power stabilization and to strengthen the noise immunity, the recommended capacitance is 10nF ~ 100nF. RL is the pull-up resistor. Pin Descriptions Package: SOT23 and SIP-3 Pin Number Pin Name 1 VDD 2 3 GND OUTPUT Function Power Supply Input Ground Output Pin Functional Block Diagram VDD Power switch To All Subcircuits Amp Low-Pass Filter Sample and Hold Dynamic Offset Cancellation Amp OUTPUT Control Current Limit GND AH3777 Document number: DS37902 Rev. 1 - 2 2 of 13 www.diodes.com September 2015 © Diodes Incorporated AH3777 Absolute Maximum Ratings (Notes 5 & 6) (@TA = +25°C, unless otherwise specified.) Symbol VDD VDDR VOUT_MAX IOUT IOUT_R B Reverse Output Current Magnetic Flux Density PD Value 32 -32 32V 60 Unit V V V mA -50 mA Unlimited 550 230 -65 to +165 +150 6 SIP-3 SOT23 Package Power Dissipation Ts TJ ESD Notes: Characteristic Supply Voltage (Note 6) Reverse Supply Voltage Output Off Voltage (Note 6) Continuous Output Current Storage Temperature Range Maximum Junction Temperature Electrostatic Discharge Withstand Capability - Human Body Model mW mW °C °C kV 5. Stresses greater than the 'Absolute Maximum Ratings' specified above may cause permanent damage to the device. These are stress ratings only; functional operation of the device at these or any other conditions exceeding those indicated in this specification is not implied. Device reliability may be affected by exposure to absolute maximum rating conditions for extended periods of time. 6. The absolute maximum VDD of 32V is a transient stress rating and is not meant as a functional operating condition. It is not recommended to operate the device at the absolute maximum rated conditions for any period of time. Recommended Operating Conditions (@TA = -40°C to +125°C, unless otherwise specified.) Symbol VDD TA Rating Unit Supply Voltage Parameter Operating 3.0 to 28 V Operating Temperature Range Operating -40 to +125 °C Electrical Characteristics Symbol VOUT_ON IOUT_OFF IDD IDD_R Reverse Battery Current tST Device Start-Up Time fc Chopping Frequency The time delay from magnetic threshold reached to the start of the output rise or fall Output Rising Time (external pull-up resistor RL and load capacitance dependent) Output Falling Time (Internal switch resistance and load capacitance dependent) Output Current Limit Zener Clamp Voltage tr tf IOCL VZ Notes: (Notes 7 & 8) (@TA = -40°C to +125°C, VDD = 3V to 28V, unless otherwise specified.) Parameter Output On Voltage Output Leakage Current Supply Current td Conditions Conditions IOUT = 20mA, B > Bop VOUT = 28V, B < Brp, Output off Output open, TA = 25°C Output open, TA = -40°C to +125°C VDD = -18V, TA = -40°C to +125°C VDD = -28V, TA = -40°C to +125°C VDD >= 3V, B > Bop (Note 7) Min - Typ 0.2 <0.1 3 -0.01 -0.01 10 Max 0.4 10 3.5 4 1 1.5 Unit V µA mA mA mA mA µs VDD = 3V to 28V - 800 - kHz (Note 9) - 3.75 - µs RL =1kΩ, CL = 20pF - 0.2 1 µs RL =1kΩ, CL = 20pF - 0.1 1 µs 30 28 - 55 - mA V B>Bop, (Note 10) IDD = 5mA 7. When power is initially turned on, VDD must be within its correct operating range (3.0V to 28V) to guarantee the output sampling. The output state is valid after the start-up time of 10µs typical from the operating voltage reaching 3V. 8. Typical values are defined at TA = +25C, VDD = 12V. Maximum and minimum values over the operating temperature range is not tested in production but guaranteed by design, process control and characterization. 9. Guaranteed by design, process control and characterization, Not tested in production. 10. The device will limit the output current IOUT to current limit of IOCL. AH3777 Document number: DS37902 Rev. 1 - 2 3 of 13 www.diodes.com September 2015 © Diodes Incorporated AH3777 Magnetic Characteristics (Notes 11 &12) (TA = -40°C to +125°C, VDD = 3.0V to 28V, unless otherwise specified) Symbol Bop (South pole to part marking side) Brp (North pole to part marking side) Bhy (|Bopx|-|Brpx|) Notes: Parameter Conditions (1mT=10 Gauss) Max Unit Min Typ VDD = 12V, TA = +25°C - 140 - TA = -40°C to +125°C 110 140 170 VDD = 12V, TA = +25°C - -140 - TA = -40°C to +125°C -170 -140 -110 VDD = 12V, TA = +25°C - 280 - TA = -40°C to +125°C 220 280 340 Operation Point Gauss Release Point Hysteresis (Note 13) 11. When power is initially turned on, VDD must be within its correct operating range (3.0V to 28V) to guarantee the output sampling. The output state is valid after the start-up time of 10us typical from the operating voltage reaching 3V. 12. Typical values are defined at TA = +25°C, VDD = 12V. Maximum and minimum values over the operating temperature range is not tested in production but guaranteed by design, process control and characterization. 13. Maximum and minimum hysteresis is guaranteed by design, process control and characterization. Output VDD ( Output Voltage ) (off-state) Bhy Turn off Turn on (on-state) VOUT_ON = VSAT Brp 0 Bop ( Magnetic Flux Density B ) S S Part mark Part mark AH3777 Document number: DS37902 Rev. 1 - 2 N N (SOT23) (SIP-3) 4 of 13 www.diodes.com September 2015 © Diodes Incorporated AH3777 Typical Operating Characteristics Magnetic Operating Switch Points – Bop and Brp 350.0 300.0 250.0 200.0 150.0 100.0 50.0 0.0 -50.0 -100.0 -150.0 -200.0 -250.0 -300.0 -350.0 TA = +25oC Hyst VDD = 3V Hyst Bop Gauss (G) Gauss (G) Bop 350.0 300.0 250.0 200.0 150.0 100.0 50.0 0.0 -50.0 -100.0 -150.0 -200.0 -250.0 -300.0 -350.0 Brp 2 350.0 300.0 250.0 200.0 150.0 100.0 50.0 0.0 -50.0 -100.0 -150.0 -200.0 -250.0 -300.0 -350.0 4 6 8 10 12 14 16 18 20 22 24 26 28 Brp -50 30 -25 0 25 50 75 100 125 Supply Voltage (V) Temperature (oC) Switch Points Bop and Brp vs Supply Voltage Switch Points Bop and Brp vs Temperature VDD = 12V 350.0 300.0 250.0 200.0 150.0 100.0 50.0 0.0 -50.0 -100.0 -150.0 -200.0 -250.0 -300.0 -350.0 Hyst Hyst Bop Gauss (G) Gauss (G) Bop VDD = 28V 150 Brp -50 -25 0 25 50 75 100 125 Brp -50 150 -25 0 25 50 75 100 125 Temperature (oC) Temperature (oC) Switch Points Bop and Brp vs Temperature Switch Points Bop and Brp vs Temperature 150 Supply Current 4.0 TA = +25 C Supply Current IDD (mA) Supply Current IDD (mA) 5.0 4.0 3.0 2.0 1.0 3.8 3.5 28V 3.3 3.0 2.8 3V 2.5 12V 2.3 2.0 0.0 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 -50 -40 -30 -20 -10 Supply Current vs Temperature Supply Current vs Supply Voltage Document number: DS37902 Rev. 1 - 2 10 20 30 40 50 60 70 80 90 100 110 120 130 Temperature (oC) Supply Voltage (V) AH3777 0 5 of 13 www.diodes.com September 2015 © Diodes Incorporated AH3777 Typical Operating Characteristics 0.4 TA = +25 C Output On Voltage VOUT_ON (V) Output On Voltage VOUT_ON (V) Output Switch On Voltage 0.3 0.2 0.1 0.4 28V 0.3 0.2 3V 12V 0.1 0.0 0.0 2 4 6 8 10 12 14 16 18 20 22 24 26 28 -50 -40 -30 -20 -10 30 0 10 20 30 40 50 60 70 80 90 100 110 120 130 Temperature (oC) Supply Voltage (V) Output On Voltage vs Temperature Output On Voltage vs Supply Voltage 30.0 Output Leakage Current (nA) Output Leakage Current (nA) Output Switch Leakage Current TA = +25 C 25.0 20.0 15.0 10.0 5.0 300 275 250 225 200 175 28V 150 125 100 12V 75 3V 50 25 0 0.0 2 4 6 8 10 12 14 16 18 20 22 24 26 28 -50 30 -25 0 25 50 75 100 125 150 Temperature (oC) Supply Voltage (V) Output Leakage Current vs Temperature Output Leakage Current vs Supply Voltage 3.0 2.8 750 TA = +25 C Supply Reverse Current (mA) Supply Reverse Current (mA) Supply Reverse Current 2.5 2.3 2.0 1.8 1.5 1.3 1.0 0.8 0.5 0.3 0.0 -30 -28 -26 -24 -22 -20 -18 -16 -14 -12 -10 -8 -6 -4 -2 625 -28V 500 -24V 375 250 -18V 125 0 -50 25 50 75 100 125 150 Supply Reverse Current vs Temperature Supply Reverse Current vs Supply Voltage Document number: DS37902 Rev. 1 - 2 0 Temperature (oC) Supply Voltage (V) AH3777 -25 6 of 13 www.diodes.com September 2015 © Diodes Incorporated AH3777 Thermal Performance Characteristics (1) Package type: SOT23 TA (°C) 25 50 60 70 80 85 90 100 105 110 120 125 130 140 150 PD (mW) 230 184 166 147 129 120 110 92 83 74 55 46 37 18 0 Power Dissipation Curve Power Dissipation PD (mW) 300 200 100 0 -40 0 25 50 75 100 125 150 Ambient Temperature TA (oC) (2) Package type: SIP-3 TA (°C) 25 50 60 70 80 85 90 100 105 110 120 125 130 140 150 PD (mW) 550 440 396 362 308 286 264 220 198 176 132 110 88 44 0 PD (mW) Power Dissipation Curve 600 500 400 300 200 100 0 -40 0 25 50 75 100 125 150 TA (°C) AH3777 Document number: DS37902 Rev. 1 - 2 7 of 13 www.diodes.com September 2015 © Diodes Incorporated AH3777 Ordering Information AH3777 - XXX - X Packing Package 7 : Tape & Reel A: Ammo Box (Note 14) B: Bulk (Note 15) P : SIP-3 SA : SOT23 Part Number Package Code Packaging AH3777-P-A P SIP-3 NA Quantity 7” Tape and Reel Part Number Quantity Suffix Bulk Part Number Suffix NA Ammo Box Quantity Part Number Suffix NA NA 4,000/Box -A AH3777-P-B P SIP-3 1,000 -B NA NA NA NA AH3777-SA-7 SA SOT23 NA NA 3,000/Tape & Reel -7 NA NA Notes: 14. Ammo Box is for SIP-3 Spread Lead. 15. Bulk is for SIP-3 Straight Lead. Marking Information (1) Package Type: SOT23 ( Top View ) XX Y W X Part Number AH3777 (2) XX : Identification code Y : Year 0 to 9 W : Week : A to Z : 1 to 26 week; a to z : 27 to 52 week; z represents 52 and 53 week X : Internal code Package SOT23 Identification Code ZG Package Type: SIP-3 ( Top View ) Part Number 3777 Y WW X AH3777 Document number: DS37902 Rev. 1 - 2 Y : Year : 0~9 WW : Week : 01~52, "52" represents 52 and 53 week X : Internal Code Part Number Package Identification Code AH3777 SIP-3 3777 8 of 13 www.diodes.com September 2015 © Diodes Incorporated AH3777 Package Outline Dimensions (All dimensions in mm.) Please see AP02002 at http://www.diodes.com/datasheets/ap02002.pdf for the latest version. (1) Package Type: SOT23 All 7° H K1 GAUGE PLANE 0.25 J K SOT23 Dim Min Max Typ A 0.37 0.51 0.40 B 1.20 1.40 1.30 C 2.30 2.50 2.40 D 0.89 1.03 0.915 F 0.45 0.60 0.535 G 1.78 2.05 1.83 H 2.80 3.00 2.90 J 0.013 0.10 0.05 K 0.890 1.00 0.975 K1 0.903 1.10 1.025 L 0.45 0.61 0.55 L1 0.25 0.55 0.40 M 0.085 0.150 0.110 a 8° All Dimensions in mm a M A L C L1 B D F G 0.17/0.37 Min/Max 0.5/0.7 PART MARKING SURFACE Die Hall Sensor Pin1 1.4/1.5 Sensor Location AH3777 Document number: DS37902 Rev. 1 - 2 9 of 13 www.diodes.com September 2015 © Diodes Incorporated AH3777 Package Outline Dimensions (cont.) (All dimensions in mm.) Please see AP02002 at http://www.diodes.com/datasheets/ap02002.pdf for the latest version. (2) Package Type: SIP-3 Bulk SIP-3 (Bulk) Dim Min Max A 3.9 4.3 a1 5° Typ a2 5°Typ a3 45° Typ a4 3°Typ B 2.8 3.2 C 1.40 1.60 D 0.33 0.432 E 0.40 0.508 F 0 0.2 G 1.24 1.30 H 2.51 2.57 J 0.35 0.43 L 14.0 15.0 N 0.63 0.84 P 1.55 All Dimensions in mm L a1 J a2 B P N D C a3 A E a4 G H F Min/Max 0.63/0.84 0.27/0.48 1.90/2.10 Hall Sensor 1 2 Die 1.05/1.25 PART MARKING SURFACE PART MARKING SURFACE 3 Sensor Location AH3777 Document number: DS37902 Rev. 1 - 2 10 of 13 www.diodes.com September 2015 © Diodes Incorporated AH3777 Package Outline Dimensions (cont.) (All dimensions in mm.) Please see AP02002 at http://www.diodes.com/datasheets/ap02002.pdf for the latest version. (3) Package Type: SIP-3 Ammo Pack N D EF SIP-3 (Ammo Pack) Dim Min Max A 3.9 4.3 a1 45° Typ a2 3° Typ B 2.8 3.2 C 1.40 1.60 D 0.35 0.41 E 0.43 0.48 F 0 0.2 G 2.4 2.9 N 0.63 0.84 P 1.55 All Dimensions in mm C A G a1 a2 B P Min/Max 0.63/0.84 0.27/0.48 1.90/2.10 Hall Sensor 1 2 Die 1.05/1.25 PART MARKING SURFACE PART MARKING SURFACE 3 Sensor Location AH3777 Document number: DS37902 Rev. 1 - 2 11 of 13 www.diodes.com September 2015 © Diodes Incorporated AH3777 Suggested Pad Layout Please see AP02001 at http://www.diodes.com/datasheets/ap02001.pdf for the latest version. (1) Package Type: SOT23 Y Z Dimensions Value (in mm) Z 2.9 X 0.8 Y 0.9 C 2.0 E 1.35 C X AH3777 Document number: DS37902 Rev. 1 - 2 E 12 of 13 www.diodes.com September 2015 © Diodes Incorporated AH3777 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). Diodes Incorporated and its subsidiaries reserve the right to make modifications, enhancements, improvements, corrections or other changes without further notice to this document and any product described herein. Diodes Incorporated does not assume any liability arising out of the application or use of this document or any product described herein; neither does Diodes Incorporated convey any license under its patent or trademark rights, nor the rights of others. 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Copyright © 2015, Diodes Incorporated www.diodes.com AH3777 Document number: DS37902 Rev. 1 - 2 13 of 13 www.diodes.com September 2015 © Diodes Incorporated