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Contents

README

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AS5045B-ASST

AMS · Position Sensors · SSOP-16-208mil

AS5045B-ASST from AMS, in a SSOP-16-208mil. Pinout and pin descriptions extracted from the manufacturer datasheet by ds2sf; symbol, footprint, and 3D from KiCad-official CAD.

Pinout

Pin Name Type Function
1 MagINCn output Magnet field magnitude increase indicator; active-low open-drain output; indicates reduction in magnet-to-device distance.
2 MagDECn output Magnet field magnitude decrease indicator; active-low open-drain output; indicates increase in magnet-to-device distance.
3 A output Incremental quadrature output A; 1024 pulses per revolution.
4 B output Incremental quadrature output B; 1024 pulses per revolution.
5 NC unconnected No connect; must be left unconnected.
6 I output Index signal for quadrature output; zero position reference.
7 VSS power_in Ground; negative supply voltage.
8 PDIO input OTP programming input and daisy-chain data input; internal 74kΩ pull-down resistor; connect to VSS if programming disabled.
9 DO tri_state Synchronous serial interface data output; tri-state compatible.
10 CLK input Synchronous serial interface clock input; Schmitt-trigger input.
11 CSn input Chip select; active-low; Schmitt-trigger input; internal 50kΩ pull-up resistor.
12 PWM output Pulse width modulation output; duty cycle 1 to 4096 μs representing 0 to 359.91 degrees.
13 NC unconnected No connect; must be left unconnected.
14 NC unconnected No connect; must be left unconnected.
15 VDD3V3 power_out 3.3V LDO regulator output regulated from VDD5V; internal use only; do not load externally.
16 VDD5V power_in Positive supply voltage; operating range 3.0V to 5.5V.

Key specifications

Parameter Value
Manufacturer AMS
Package SSOP-16-208mil
Category Sensors
Pins 16

CAD (KiCad official)

  • Symbol: AS5045B-ASST
  • Footprint: Package_SO:SSOP-16_5.3x6.2mm_P0.65mm
  • 3D model: SSOP-16-208mil (KiCad packages3D, STEP)
  • 3D model files: as5045b-asst-etched.step / as5045b-asst-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); as5045b-asst.step / as5045b-asst.glb are the bare package body.

Provenance

Data extracted from the manufacturer datasheet, not a distributor listing:

  • Datasheet: AMS datasheet (50 pp, sha256 1b34121a0adad038, retrieved 2026-09-17, tier: lcsc)
  • Extractor: parts-factory 2.0.0 / extract_pins 0.2, primary claude-haiku-4-5-20251001 (text), consensus claude-sonnet-4-6 (agreed), guards: pin_guards 0.1: passed. Pins are checked against the footprint pad set and their cited datasheet pages before publish.
  • CAD: KiCad official libraries (CC-BY-SA 4.0).

Datasheet PDF