Resolver-to-digital converter with integrated exciter amplifier and power supply


Product details


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Package | Pins | Size

HTQFP (PAP) 64 144 mm² 12 x 12 open-in-new Find other Inductive sensor AFEs


  • Qualified for Automotive Applications
  • AEC-Q100 Qualified With the Following Results:
    • Device Temperature Grade 1: –40°C to +125°C Ambient Operating Temperature Range
    • Device HBM ESD Classification Level 2
    • Device CDM ESD Classification Level C4B
  • Resolver-to-Digital Converter (RDC)
  • Exciter Preamplifier and Power Amplifier
  • Exciter-Boost Power Supply With Spread Spectrum
  • Analog Front-End
  • Automatic Offset Calibration
  • Type-II PI Controller Tracking Loop
  • Parallel, Encoder, or SPI Data Output
  • Analog Data Output
  • SafeTI™ Semiconductor Component
    • Designed for Functional Safety Applications
    • Developed According to the Requirements of ISO 26262
  • Automatic and Manual Phase Correction
  • Sensor-Input Fault Detection
  • Diagnostics Interrupt Output
  • Internal and External Oscillator
  • Analog and Logic Built-In Self-Test for Fault Detection
  • 64-Pin HTQFP PowerPAD™ IC Package

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The PGA411-Q1 device is a resolver-to-digital converter, with an integrated exciter-amplifier and boost-regulator power supply, that is capable of both exciting and reading the sine and cosine angle from a resolver sensor. The integration of the exciter amplifier and boost supply with protection in the PGA411-Q1 device enables cost reductions of the bill of materials (BOM) and space reductions on the printed-circuit board (PCB) because of the elimination of most external and passive components.

The PGA411-Q1 device also has an internal clock for generating a sine wave used for sensor excitation. The architecture of the analog front-end (AFE) allows the user to output 10 bits or 12 bits of resolution for the angle position and velocity. Because of high integration, the PGA411-Q1 device has diagnostics and protection on each internal block inside the device. The integrated diagnostics monitor can signal a fault condition through a dedicated pin which can be used as a MCU interrupt. These features allow flexibility in both resolver sensor choice and platform scalability. Additionally, the PGA411-Q1 was designed according to the requirements of ISO 26262 for functional safety applications.

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Technical documentation

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Type Title Date
* Datasheet PGA411-Q1 Resolver Sensor Interface datasheet (Rev. E) Aug. 01, 2017
Application notes PGA411-Q1 Systems Level Debugging FAQ Oct. 22, 2018
Technical articles TI resolver interface offers integration benefits in industrial drives and HEV/EV Apr. 10, 2017
Application notes Thermal Considerations of the PGA411 Apr. 06, 2017
Selection guides TI Components for Aerospace and Defense Guide (Rev. E) Mar. 22, 2017
Technical articles The other motors in electric vehicle systems (part 4) Nov. 17, 2016
Application notes AFE Design Guide and Fault Diagnostics With PGA411-Q1 Nov. 11, 2016
Technical articles How to read motor velocity using the quadrature emulation interface Nov. 02, 2016
Technical articles Increase the reliability of industrial drives with an EMC-compliant resolver sensor interface based design Nov. 02, 2016
White papers Smaller and smarter motor control drives HEV/EV market forward Aug. 05, 2016
Application notes Software Developer Guide for PGA411-Q1 Jul. 22, 2016
White papers Electrical design considerations for industrial resolver sensing applications Jun. 15, 2016
Application notes PGA411-Q1 Step-by-Step Initialization With Any Host System Mar. 10, 2016
Application notes PGA411-Q1 PCB Design Guidelines Mar. 08, 2016
User guides PGA411-Q1 EVM User's Guide Mar. 01, 2016
More literature PGA411-Q1 Evaluation Module Quick Start Guide Feb. 26, 2016
Application notes Safety Manual for PGA411-Q1 Resolver Sensor Interface Feb. 11, 2016
Application notes Troubleshooting Guide for PGA411-Q1 Feb. 01, 2016
Application notes Design considerations for resolver-to-digital converters in electric vehicles Jan. 26, 2016

Design & development

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Hardware development

document-generic User guide
The PGA411-Q1 is a resolver to digital converter with an integrated exciter amplifier, boost regulator power supply, that is capable of both exciting and reading the sine and cosine angle from a resolver sensor. The integration of the exciter amplifier and boost supply with protections in the (...)


  • Integrated Exciter Amplifier (145 mA, 5 Vin) and Boost Power Supply (10V-17V, 5 Vin)
  • Developed using SafeTI for ISO26262 and IEC61508
  • Analog and Logic Built-In-Self-Test (BIST)
  • Programmable fault thresholds and filters


SLAC719B.ZIP (19528 KB)

Design tools & simulation

SLAM307.ZIP (35 KB) - IBIS Model

Reference designs

Resolver-Based Motor Control Reference Design With a BLDC Motor and C2000™ MCU
TIDA-01507 — The TIDA-01507 reference design is a generic development platform for motor-control applications. Control for the system comes from the C2000™ TMS320F28069M microcontroller (MCU). The 3-phase BLDC gte driver, DRV8305-Q1 drives a BLDC motor whereas the resolver-to-digital converter PGA411-Q1 (...)
document-generic Schematic document-generic User guide
EMC Compliant Single-Chip Resolver-to-Digital Converter (RDC) Reference Design
TIDA-00363 — The TIDA-00363 TI design provides a solution for EMC-compliant resolver-to-digital converter (RDC) with single-chip PGA411-Q1 with 12-bit angle resolution. PGA411-Q1's integrated boost-converter and exciter amplifier reduces system cost and board space compared to traditional RDC solutions. On-chip (...)
document-generic Schematic document-generic User guide
Automotive Resolver-to-Digital Converter Reference Design for Safety Application
TIDA-00796 TIDA-00796 reference design is a complete resolver solution based on system-on-chip (SoC) PGA411-Q1 sensor interface. Typical application for the design is in electric vehicle (EV) and hybrid electric vehicle (HEV) powertrain systems. The PGA411-Q1 based design solves excitation amplifier, boost (...)
document-generic Schematic document-generic User guide

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