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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|Exciter Amplifier Current (Max) (mA)|
|Exciter Amplifier Frequency (kHz)|
|Operating Temperature Range (C)|
| Parallel |
| SafeTI Semiconductor Component |
Automatic and Manual Phase Correction
Sensor Input Fault Detection
Internal and External Oscillator
Analog & Logic Built-In Self-Test for Fault Detection
|10 to 20|
|-40 to 125|
|10 to 17|
| Resolver-to-Digital Converter |
Boost Power Supply
Analog Front End