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參數(shù)資料
| 型號(hào)： | AS5145B-HSST-500 |
| 廠商： | ams |
| 文件頁(yè)數(shù)： | 2/2頁(yè) |
| 文件大?。?/td> | 746K |
| 描述： | IC ENCODER ROTARY MAGN 16-SSOP |
| 標(biāo)準(zhǔn)包裝： | 500 |
| 傳感范圍： | 45mT ~ 75mT |
| 類型： | 線性，旋轉(zhuǎn)編碼器 - 可編程 |
| 電源電壓： | 3 V ~ 3.6 V，4.5 V ~ 5.5 V |
| 電流 - 電源： | 21mA |
| 電流 - 輸出（最大）： | 4mA |
| 輸出類型： | 正交，帶刻度角（增量） |
| 特點(diǎn)： | 可編程 |
| 工作溫度： | -40°C ~ 150°C |
| 封裝/外殼： | * |
| 供應(yīng)商設(shè)備封裝： | * |
| 包裝： | * |
www.ams.com/AS5145
Revision 1.17
2 - 36
AS5145
Datasheet - Contents
Contents
1 General Description.................................................................................................................................................................. 1
2 Key Features............................................................................................................................................................................. 1
3 Applications............................................................................................................................................................................... 1
4 Pin Assignments....................................................................................................................................................................... 4
4.1 Pin Descriptions.................................................................................................................................................................................... 4
5 Absolute Maximum Ratings...................................................................................................................................................... 6
6 Electrical Characteristics........................................................................................................................................................... 7
6.1 Magnetic Input Specification................................................................................................................................................................. 8
6.2 System Specifications .......................................................................................................................................................................... 9
7 Timing Characteristics ............................................................................................................................................................ 11
8 Detailed Description................................................................................................................................................................ 12
8.1 Mode_Index Pin.................................................................................................................................................................................. 12
8.1.1 Synchronous Serial Interface (SSI) ........................................................................................................................................... 13
8.1.2 Incremental Mode...................................................................................................................................................................... 14
8.1.3 Sync Mode................................................................................................................................................................................. 16
8.1.4 Sin/Cosine Mode ....................................................................................................................................................................... 16
8.1.5 Daisy Chain Mode ..................................................................................................................................................................... 16
8.2 Pulse Width Modulation (PWM) Output.............................................................................................................................................. 17
8.2.1 Changing the PWM Frequency.................................................................................................................................................. 18
8.3 Analog Output..................................................................................................................................................................................... 18
9 Application Information........................................................................................................................................................... 19
9.1 Programming the AS5145.................................................................................................................................................................. 19
9.1.1 Zero Position Programming....................................................................................................................................................... 19
9.1.2 OTP Memory Assignment.......................................................................................................................................................... 20
9.1.3 User Selectable Settings ........................................................................................................................................................... 20
9.1.4 OTP Default Setting................................................................................................................................................................... 21
9.1.5 Redundancy............................................................................................................................................................................... 21
9.1.6 Redundant Programming Option............................................................................................................................................... 22
9.1.7 OTP Register Entry and Exit Condition ..................................................................................................................................... 22
9.2 Alignment Mode.................................................................................................................................................................................. 23
9.3 3.3V / 5V Operation............................................................................................................................................................................ 24
9.4 Selecting Proper Magnet.................................................................................................................................................................... 24
9.4.1 Physical Placement of the Magnet ............................................................................................................................................ 25
9.4.2 Magnet Placement..................................................................................................................................................................... 26
9.5 Failure Diagnostics............................................................................................................................................................................. 26
9.5.1 Magnetic Field Strength Diagnosis............................................................................................................................................ 26
9.5.2 Power Supply Failure Detection ................................................................................................................................................ 26
9.6 Angular Output Tolerances................................................................................................................................................................. 26
9.6.1 Accuracy.................................................................................................................................................................................... 26
9.6.2 Transition Noise......................................................................................................................................................................... 28
9.6.3 High Speed Operation............................................................................................................................................................... 28
9.6.4 Propagation Delays ................................................................................................................................................................... 28
9.6.5 Internal Timing Tolerance.......................................................................................................................................................... 29
9.6.6 Temperature.............................................................................................................................................................................. 29
9.6.7 Accuracy over Temperature ...................................................................................................................................................... 29
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