AS5040 PB austriamicrosystems, AS5040 PB Datasheet - Page 3

• Manufacturer Part Number: AS5040 PB
• Description: BOARD PROGRAM AS5040
• Manufacturer: austriamicrosystems

Specifications of AS5040 PB

• Module/board Type: ZIF Socket
• For Use With/related Products: AS5000 Programmer, AS5040
• Lead Free Status / RoHS Status: Lead free by exemption / RoHS compliant by exemption
• Other names: AS5045 PB; AS5140H PB; AS5145 PB

AS5040
Data Sheet
Table 2 Pin Description SSOP16
DO_OD
DO
DI_PD
DI_PU
Mode 3.x: Brushless DC Motor Commutation Mode
In addition to the absolute encoder output over the SSI interface, this mode provides commutation signals for
brushless DC motors with either one pole pair or two pole pair rotors. The commutation signals are usually provided
by 3 discrete Hall switches, which are no longer required, as the AS5040 can fulfill two tasks in parallel: absolute
encoder + BLDC motor commutation.
In this mode, pin 12 provides the LSB output instead of the PWM (Pulse-Width-Modulation) signal.
Pin 8 (Prog) is also used to program the different incremental interface modes, the incremental resolution and the
zero position into the OTP (see page 18).
This pin is also used as digital input to shift serial data through the device in Daisy Chain configuration,
(see page 11).
Pin 11 Chip Select (CSn; active low) selects a device within a network of AS5040 encoders and initiates serial data
transfer. A logic high at CSn puts the data output pin (DO) to tri-state and terminates serial data transfer. This pin is
also used for alignment mode (page 21) and programming mode (page 16).
www.austriamicrosystems.com
Pin
10
11
12
13
14
15
16
1
2
3
4
5
6
7
8
9
digital output open drain
digital output
digital input pull-down
digital input pull-up
PWM_LSB
MagDECn
A_LSB_U
MagINCn
Symbol
Index_W
VDD3V3
B_Dir_V
VDD5V
Prog
VSS
CLK
CSn
DO
NC
NC
NC
DI_PU, ST
DO_OD
DO_OD
DI_PD
DI, ST
Type
DO_T
DO
DO
DO
DO
S
S
S
-
-
-
Positive Supply Voltage 5 V
Negative Supply Voltage (GND)
Magnet Field Magnitude INCrease; active low, indicates a distance
reduction between the magnet and the device surface.
Magnet Field Magnitude DECrease; active low, indicates a distance
increase between the device and the magnet.
Mode1.x: Quadrature A channel
Mode2.x: Least Significant Bit
Mode3.x: U signal (phase1)
Mode1.x: Quadrature B channel quarter period shift to channel A.
Mode2.x: Direction of Rotation
Mode3.x: V signal (phase2)
Must be left unconnected
Mode1.x and Mode2.x : Index signal indicates the absolute zero position
Mode3.x: W signal (phase3)
OTP Programming Input and Data Input for Daisy Chain mode. Internal
pull-down resistor (~74kΩ).
May be connected to VSS if programming is not used
Data Output of Synchronous Serial Interface
Clock Input of Synchronous Serial Interface; Schmitt-Trigger input
Chip Select, active low; Schmitt-Trigger input, internal pull-up resistor
(~50kΩ) connect to VSS in incremental mode (see 0)
Pulse Width Modulation of approx. 1kHz; LSB in Mode3.x
Must be left unconnected
Must be left unconnected
3V-Regulator Output (see Figure 19)
S
DI
DO_T
ST
Revision 2.10
supply pin
digital input
digital output /tri-state
Schmitt-Trigger input
Description
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