參數(shù)資料
型號(hào): AS5132-HSST
廠商: ams
文件頁(yè)數(shù): 1/27頁(yè)
文件大?。?/td> 522K
描述: IC ENCODER ROTARY 20-SSOP
標(biāo)準(zhǔn)包裝: 2,000
傳感范圍: 20mT ~ 80mT
類型: 旋轉(zhuǎn)
電源電壓: 4.5 V ~ 5.5 V
電流 - 電源: 15mA
輸出類型: 數(shù)字,PWM
特點(diǎn): 可編程
工作溫度: -40°C ~ 150°C
封裝/外殼: 20-SSOP
供應(yīng)商設(shè)備封裝: 20-SSOP
包裝: 帶卷 (TR)
AS5132
360 Step (8.5 bit) Programmable High Speed Magnetic Rotary Encoder
www.ams.com
Revision 1.4
1 - 27
1 General Description
The AS5132 is a contactless magnetic rotary encoder for accurate
angular measurement over a full turn of 360 degrees. It is a system-
on-chip, combining integrated Hall elements, analog frontend and
digital signal processing in a single device.
To measure the angle, only a simple two-pole magnet, rotating over
the center of the chip is required.
The absolute angle measurement provides instant indication of the
magnets angular position with a resolution of 8.5 bit = 360 positions
per revolution. This digital data is available as serial output over the
interface and as a pulse width modulated (PWM) signal.
An additional U,V,W output can be used for a block commutation for
a brushless DC motor. An incremental signal is available as an
option.
In addition to the angle information, the strength of the magnetic field
is also available as a 5-bit code.
A software programmable (OTP) zero position simplifies assembly
as the zero position. The magnet does not need to be mechanically
aligned.
2 Key Features
n 360?/SPAN> contactless angular position sensing
n Two digital absolute outputs (8.5 bit):
- Serial interface
- PWM output
n Incremental output with adjustable number of pulses
n BLDC Output UVW, selectable for 1,2,3,4,5,6 pole pairs
n Supports external PWM clock mode
n Static and dynamic pre-commutation feature
n User programmable zero position and sensitivity
n High speed: up to 72,900 rpm
n Direct measurement of magnetic field strength allows exact 
determination of vertical magnet distance
n Incremental Outputs ABI Quadrature: 90ppr, step direction: 
180ppr, fixed pulse width 360ppr
n 9-bit multi turn counter
n Wide magnetic field input range: 20  80 mT (typical)
n Wide temperature range: -40?/SPAN>C to +150?/SPAN>C
n Thin Small Pb-free package: SSOP 20
n Fully automotive qualified to AEC-Q100, grade 0 
3 Applications
The AS5132 is suitable for contactless rotary position sensing, rotary
switches (human machine interface), AC/DC motor position control
and Brushless DC motor position control.
igure 1. AS5132 Block Diagram
DDP
TC
Tracking ADC &
Angle Decoder
OTP
DIO
PWM
CLK
PROG
CSN
PWM Decoder
AGC
Mag
Angle
Commutation
Interface
U_A
V_B
W_I
VDD5V
GND
Pre-Commutation
DIR
COM/INC
Diag
Diagnostic
Test(3:0)
Zero
Adder
Step Mode
S
AS5132
Hall Array &
Frontend
Amplifier
Absolute
Serial
Interface
(SSI)
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