AS5601-ASOT

Product Document Published by ams OSRAM Group AS5601 12-Bit Programmable Contactless Encoder General Description The AS5601 is an easy-to-program magnetic rotary position sensor with incremental quadrature (A/B) and 12-bit digital outputs. Additionally, the PUSH output indicates fast airgap changes between the AS5601 and magnet which can be used to implement a contactless pushbutton function in which the knob can be pressed to move the magnet toward the AS5601. This AS5601 is designed for contactless encoder applications, and its robust design rejects the influence of any homogenous external stray magnetic fields. Based on planar Hall sensor technology, this device measures the orthogonal component of the flux density (Bz) from an external magnet. The industry-standard I²C interface supports user programming of non-volatile parameters in the AS5601 without requiring a dedicated programmer. The AS5601 also provides a smart low-power mode which automatically reduces power consumption Ordering Information and Content Guide appear at end of datasheet. Key Benefits & Features The benefits and features of AS5601, 12-bit Programmable Contactless Encoder are listed below: Figure 1: Added Value of Using AS5601 Benefits Features • Highest reliability and durability • Contactless angle measurement insensitive to dust and dirt • Simple programming • Simple user-programmable zero position and device configuration • Flexible choice of the number of A/B pulses per revolution • Quadrature output configurable from 8 up to 2048 positions • Contactless pushbutton functionality • Pushbutton output by detecting sudden airgap changes • Low power consumption • Automatic entry into low-power mode • Easy setup • Automatic magnet detection • Small form factor • SOIC-8 package • Robust environmental tolerance • Wide temperature range: -40°C to 125°C ams Datasheet [v1-07] 2016-Sep-09 Page 1 Document Feedback AS5601 − General Description Applications The AS5601 is ideally suited for: • Encoder replacement • Contactless rotary knobs with push buttons • Other angular position measurement solutions Block Diagram The functional blocks of this device are shown below: Figure 2: AS5601 Block Diagram VDD3V3 SDA Register Setting I²C Low-Dropout (LDO) Regulator (internal load only) VDD5V Hall Sensors One-Time Programmable (OTP) Memory SCL Analog Front-End AFE 12-bit A/D ATAN (CORDIC) Automatic Gain Control (AGC) A B A/B Quadrature Output Encoder Dynamic Magnitude Monitoring PUSH Magnetic Core AS5601 GND Page 2 Document Feedback ams Datasheet [v1-07] 2016-Sep-09 AS5601 − Pin Assignments Pin Assignments Figure 3: SOIC-8 Pin-Out 1 8 A VDD3V3 2 7 SCL PUSH 3 6 SDA GND 4 5 B AS5601 VDD5V Pin Description Figure 4: Pin Description Pin Number Name 1 VDD5V Supply Positive voltage supply in 5V mode 2 VDD3V3 Supply Positive voltage supply in 3.3V mode (requires an external 1-μF decoupling capacitor in 5V mode) 3 PUSH Digital output Contactless pushbutton function output 4 GND Supply Ground 5 B Digital output Quadrature incremental signal B 6 SDA Digital input/output I²C Data 7 SCL Digital input I²C Clock 8 A Digital output Quadrature incremental signal A ams Datasheet [v1-07] 2016-Sep-09 Type Description Page 3 Document Feedback AS5601 − Absolute Maximum Ratings Absolute Maximum Ratings Stresses beyond those listed under Absolute Maximum Ratings may cause permanent damage to the device. These are stress ratings only. Functional operation of the device at these or any other conditions beyond those indicated under Operating Conditions is not implied. Exposure to absolute maximum rating conditions for extended periods may affect device reliability. Figure 5: Absolute Maximum Ratings Symbol Parameter Min Max Units Comments Electrical Parameters VDD5V DC supply voltage at VDD5V pin -0.3 6.1 V 5.0V operation mode VDD3V3 DC supply voltage at VDD3V3 pin -0.3 4.0 V 3.3V operation mode VAIO Voltage at all digital or analog pins -0.3 VDD + 0.3 V ISCR Input current (latch-up immunity) -100 100 mA JESD78 Continuous Power Dissipation (TA = 70°C) PT Continuous power dissipation 50 mW Electrostatic Discharge ESDHBM Electrostatic discharge HBM (human body model) ±1 kV MIL 883 E method 3015.7 Temperature Ranges and Storage Conditions TSTRG Storage temperature range TBODY Package body temperature RHNC Relative humidity (non-condensing) MSL Moisture sensitivity level Page 4 Document Feedback -55 125 5 3 °C 260 °C 85 % ICP/JEDEC J-STD-020 The reflow peak soldering temperature (body temperature) is specified according to IPC/JEDEC J-STD-020 “Moisture/Reflow Sensitivity Classification for Non-hermetic Solid State Surface Mount Devices.” The lead finish for Pb-free leaded packages is “Matte Tin” (100% Sn) ICP/JEDEC J-STD-033 ams Datasheet [v1-07] 2016-Sep-09 AS5601 − Electrical Characteristics Electrical Characteristics All limits are guaranteed. The parameters with min and max values are guaranteed with production tests or SQC (Statistical Quality Control) methods. Operating Conditions Figure 6: System Electrical Characteristics and Temperature Range Symbol Parameter VDD5V Positive supply voltage in 5.0V mode VDD3V3 Positive supply voltage in 3.3V mode Conditions Min Typ Max Units 4.5 5.0 5.5 V 3.3V operation mode 3.0 3.3 3.6 V During OTP burn procedure(2) 3.3 3.4 3.5 V 5.0V operation mode During OTP burn procedure(2) IDD Supply current in NOM (1) PM = 00 Always on 6.5 mA lDD_LPM1 Supply current in LPM1 (1) PM = 01 Polling time = 5 ms 3.4 mA lDD_ LPM2 Supply current in LPM2 (1) PM = 10 Polling time = 20 ms 1.8 mA lDD_ LPM3 Supply current in LPM3 (1) PM = 11 Polling time = 100 ms 1.5 mA Supply current per bit for burn procedure Initial peak, 1 μs 100 mA IDD_BURN Steady burning,