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參數(shù)資料
| 型號(hào)： | 5962-0423501KXA |
| 元件分類： | 位置變換器 |
| 英文描述： | SYNCHRO OR RESOLVER TO DIGITAL CONVERTER, CQFP52 |
| 封裝： | 0.956 X 0.956 INCH, 0.100 INCH HEIGHT, HERMETIC SEALED, CERAMIC, QFP-52 |
| 文件頁數(shù)： | 8/23頁 |
| 文件大?。?/td> | 259K |
| 代理商： | 5962-0423501KXA |
16
SCD5028-1 Rev J 9/30/08
Aeroflex Plainview
ERRATA INFORMATION
ACT5028-2-X-X
This Errata information represents the known bugs, anomalies, and work-arounds for the ACT5028 Resolver to Digital
Converter
DESCRIPTION OF ANOMALIES:
Anomaly #1: Instability at 360o and 180o Input Angles
Anomaly #2: Correcting for the Integral Nonlinearity Error found in Revision B Silicon
Anomaly #3: Precautionary note when power is first applied.
EFFECTED PARTS:
ANOMALY #1
PROBLEM DESCRIPTION:
This problem only occurs in the 16 Bit mode when rotating in the clockwise (CW) direction and has been observed on
100% of the parts tested at 25°C. It occurs 100% of the time at 360o and approximately 76% at 180o. At 360o the
problem occurs when the counter passes from FFFF to 0000 then reverse rotation (CCW) back to FFFF. At 180o the
problem occurs when the counter passes from 7FFF to 8000 then reverse rotation (CCW) back to 7FFF.
Two different failure modes have been observed:
1) The output latch locks to a value with the MSB inverted giving the indication that the RDC chip is 180o out
of phase, the RDC chip exhibits zero error. This condition remains indefinitely until the resolver rotates in
either direction by one count. At which time the RDC chip responds to the 180o error which takes less than
150ms to correct.
2) The RDC chip sees an immediate error of 180o and begins to correct for this error which takes less than
150ms.
In some cases it has been observed that the MSB is OK but the next bit gets inverted which provides a 90o error. In this
case the time required for the RDC chip to correct its self is less than 75 ms.
RECOMMENDED ACTIONS:
1) Use the 14, 12 or 10 Bit mode where this problem doesn’t exist.
2) Insure a hysteresis of at least one bit to prevent this anomaly when rotating very slowly.
3) Avoid reversing direction at 360o and 180o when rotating in the CW direction.
4) If the resolver stops within two counts of 360o or 180o wait 150ms after motion resumes before reading the
RDC output.
Model
Anomaly
ACT5028-2-1-X
1
2a
3
ACT5028-2-2-X
1
2b
3
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| 5962-0423501KXC | SYNCHRO OR RESOLVER TO DIGITAL CONVERTER, CQFP52 |
| 5962-0423502KXC | SYNCHRO OR RESOLVER TO DIGITAL CONVERTER, CQFP52 |
| 5962-0423502KXA | SYNCHRO OR RESOLVER TO DIGITAL CONVERTER, CQFP52 |
| 5962-0423502KXA | SYNCHRO OR RESOLVER TO DIGITAL CONVERTER, CQFP52 |
| 5962-0423502KXC | SYNCHRO OR RESOLVER TO DIGITAL CONVERTER, CQFP52 |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| 5962-0423801KXA | 制造商:International Rectifier 功能描述:Module DC-DC 1-OUT 3.3V 3.03A 10W 7-Pin Case S 制造商:International Rectifier 功能描述:SINGLE CHANNEL 3.3 VOLT - Bulk |
| 5962-0423901KXA | 制造商:International Rectifier 功能描述:MICROCIRCUIT, HYBRID,5 VOLT,SINGLE CHANNEL,DC/DC CONVERTEER - Bulk |
| 5962-0424201KXA | 制造商:International Rectifier 功能描述:Module DC-DC 2-OUT 5V/-5V 1.6A 10W 7-Pin Case S 制造商:International Rectifier 功能描述:CONVERTER +/-5 VOLT, DUAL - Bulk |
| 5962-0425101HXC | 制造商:International Rectifier 功能描述:DC/DC CONVERTER, DUAL CHANNEL, +/-15 VOLT, HYBRID - Bulk |
| 5962-0520801QXC | 制造商:ATMEL 制造商全稱:ATMEL Corporation 功能描述:Rad Hard 512K x 8 5V Tolerant Very Low Power CMOS SRAM |
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