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特性

  • Resolver drive unit
    • Input square wave: 5/10/20kHz, 2.5Vp-p (Max.)
    • Excitation signal output AC voltage: 2.5Vp-p (Max.) Alternating current: 35mAp-p (Max.)
    • Over-temperature detection circuit on-chip
  • Converter part
    • Differential amplifier circuit Variable gain: 2, 4, 8, 16.5X
    • Signal conversion circuit Angle error correction function, internal circuit error correction function
    • Disconnection detection circuit Detect disconnection from the signal amplitude
  • Amplifier circuit unit
    • Differential amplifier circuit 2ch (differential input support), variable gain: 10, 25X, for motor control current detection
  • Control
    • Communication function SPI interface (Max. 1MHz)
    • Operating frequency 4 MHz
  • Conversion error: ±0.2 degrees
  • Supply voltage: VDD = 4.5-5.5 V, IOVDD = VDD
  • Supply current:Maximum operating current: 20 mA (Typ.) Power save time: 420 μA (Typ.)
  • Operating ambient temperature: -40 ℃ to +105 ℃
  • Package: 48-pin plastic LQFP (7mm x 7mm, 0.5mm pitch)

Supported resolvers

  • VR type 4-phase resolver
  • Voltage detection method
  • Current detection method

描述

The RAA3064002GFP (hereinafter together referred to as “this IC”) is resolver-to-digital converters which are intended for use with single-phase excitation, two-phase output type resolver sensors (angle sensors). The resolver sensor outputs analog signals (electrical angle information) which are proportional to the angle of the mechanical rotation of the resolver. This IC converts these analog signals to digital signals. This IC can be connected to either of two types of resolver sensor.

产品参数

属性
Min Operating Temperature (°C) -40
Operating Temperature Topr (Max) (°C) -
Operating Voltage Range (V) -

封装选项

Pkg. Type Pkg. Dimensions (mm) Lead Count (#)
LFQFP 7 x 7 x 1.7 48

应用方框图

Interactive block diagram of the motor control with resolver design features resolver position control for both stepper motor systems and alternative BLDC motor systems.
带旋转变压器的电机控制
旋转变压器提高了步进和 BLDC 电机系统的电机控制精度和可靠性,并降低了成本。
Interactive block diagram of the resolver motor control system features an MCU, full-bridge FET drivers, buck regulators and RS-485 transceivers.
用于小型工业机器人的旋转变压器电机控制
小型机器人系统提供精确的运动控制、坚固的设计并缩短开发时间。

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