AS5045-ASST datasheet(3/47 Pages) AMSCO

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[v2-01] 2017-Jul-13

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AS5045 − Pin Assignment

Figure 3:

Pin Assignment (Top View)

Pin Description

Figure 4 shows the description of each pin of the standard

SSOP16 package (Shrink Small Outline Package, 16 leads, body

size: 5.3mm x 6.2mmm; see Figure 3).

Pins 7, 15 and 16 supply pins, pins 3, 4, 5, 6, 13 and 14 are for

internal use and must not be connected.

Pins 1 and 2 MagINCn and MagDECn are the magnetic field

change indicators (magnetic field strength increase or decrease

through variation of the distance between the magnet and the

device). These outputs can be used to detect the valid magnetic

field range. Furthermore those indicators can also be used for

contact-less push-button functionality.

Pin 6 Mode allows switching between filtered (slow) and

unfiltered (fast mode). This pin must be tied to VSS or VDD5V,

and must not be switched after power up. See Mode Input Pin.

Pin 8 Prog is used to program the zero-position into the OTP.

See Zero Position Programming.

This pin is also used as digital input to shift serial data through

the device in Daisy Chain configuration. See Daisy Chain Mode.

Pin 11 Chip Select (CSn; active low) selects a device within a

network of AS5045 magnetic position sensors and initiates

serial data transfer. A logic high at CSn puts the data output pin

(DO) to tri-state and terminates serial data transfer. This pin is

also used for alignment mode and programming mode (see

Figure 27).

Pin Assignment

MagINCn

MagDECn

Mode

VSS

Prog_DI

CLK

CSn

PWM

VDD3V3

VDD5V

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