Osram AS5045B User Manual Download Page 1 | Manualshive

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Summary of Contents for AS5045B

Page 1: ...Product Document Published by ams OSRAM Group...

Page 2: ...www ams com Revision 1 1 05 07 2013 page 1 15 AS5045B 12 bit Rotary Position Sensor with Digital Angle Interface PWM and ABI output User Manual AS5045B AB v1 0...

Page 3: ...Operation cases 8 4 1 Standalone SSI output mode 8 4 2 Standalone PWM output mode 9 4 3 Standalone incremental Output 11 4 4 Daisy chain mode 12 5 Programming the AS5045B 13 6 AS5045B AB Hardware 14 6...

Page 4: ...net rotating over the center of the chip is required The magnet may be placed above or below the IC This is shown in Figure 1 Figure 1 Rotary Position Sensor AS5045B Magnet 2 The AS5045B adapter board...

Page 5: ...d on the middle of the package with a tolerance of 0 5mm The airgap between the magnet and the encoder casing should be maintained in the range 0 5mm 2mm The magnet holder must not be ferromagnetic Ma...

Page 6: ...ms com Revision 1 1 05 07 2013 page 5 15 Figure 3 AS5045B AB mounting and dimension AS5045B 0 5 2mm AS5045B J2 J1 GND PWM Ind B A Mag INC GND Prg 5V 3V3 CSn CLK DO Mag DEC 18mm 11mm 28mm 22mm Diametra...

Page 7: ...ve low Schmitt Trigger input internal pull up resistor 50k connect to VSS in incremental mode JP1 5 15 3V3 S 3V Regulator Output JP1 6 16 5V S 5V Supply JP1 7 8 Prg DI_PD OTP Programming Input and Dat...

Page 8: ...AS5140 AS5145 programmed only Mode1 x and Mode2 x Index signal indicates the absolute zero position Mode3 x W signal phase3 AS5045 AS5145 unprogrammed Mode input connect to VDD5 Fast mode or GND Slow...

Page 9: ...4 1 Standalone SSI output mode The serial word contains 12 bits for AS5045B angle value and some other indicator bits like MagINC MagDEC which can be read at the same time Figure 5 Using the analog ou...

Page 10: ...tional to the measured angle The PWM signal J2 pin 7 with a period of 1025us 1us step and 5V pulse voltage can be connected to the capture timer input of a microcontroller in order to decode the angle...

Page 11: ...User Manual AS5045B AB www ams com Revision 1 1 05 07 2013 page 10 15 Figure 7 PWM duty cycle depending on magnet position Angle 359 65 deg Pos 1023 0 deg Pos 0 1 s 1025 s PWMIN PWMAX 1024 s...

Page 12: ...de two channel quadrature step direction incremental signal LSB and the direction bit in clockwise CW and counter clockwise CCW direction The pre programmed version AS5045B provides a 12bit incrementa...

Page 13: ...ead from the DO pin of the first device in the chain The Prog pin of the last device in the chain should be connected to VSS The length of the serial bit stream increases with every connected device b...

Page 14: ...d some mode settings please refer to datasheet Data must be valid at the rising edge of CLK After writing data into the OTP register it can be permanently programmed by rising the Prog pin to the prog...

Page 15: ...ut Figure 12 AS5045B AB 1 0 adapter board layout 2 2 3 3 Size Date Project Title Originator Originator ProjTitle A4 ProjDate PWM B A Index MagDECn PROG DO CLK 5V GND 1 2 3 4 5 6 7 J2 Header 7 GND 1 2...

Page 16: ...environmental requirements or high reliability applications such as military medical life support or life sustaining equipment are specifically not recommended without additional processing by ams AG...

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