A1356_16 Datasheet, PDF (17/20 Pages) Allegro MicroSystems – High Precision Linear Hall-Effect Sensor IC High Precision Linear Hall-Effect Sensor IC

A1356
High Precision Linear Hall-Effect Sensor IC
With an Open Drain Pulse Width Modulated Output
Programming Logic Table
Mode or Parameter
Name
(Register Key)
Programmable Mode
Blow, Lock
(1)
Try
(2)
Programmable Parameter
Sensitivity
(1)
D_(Q)
(2)
Bit Field Address
Binary Format
[MSB → LSB]
Decimal Equivalent Code
01
1
10
2
000000000
0
011111111
255
000000000
0
011111111
255
100000000
256
111111111
511
PWM Frequency
000000000
0
(3)
000001111
15
Calibration Test Mode,
000000000
0
Lock
000010000
16
(5)
1000000000
512
Description
Blow parameter bit field fuse
Blow Lock fuse to lock device
Try code
Initial value, Sens = Sens_PRE
Maximum Sens value in range
Initial value, D_(Q) = D_(Q)PRE
Maximum quiescent duty cycle in range
Switch from programming increasing D_(Q) to
programming decreasing D_(Q)
Minimum quiescent duty cycle in range
Initial value; f_PWM = f_PWMPRE
Minimum PWM frequency in range
Initial value
Enable Output Calibration Test Mode
Enable blowing Lock fuse to lock device
Allegro MicroSystems, LLC
17
115 Northeast Cutoff
Worcester, Massachusetts 01615-0036 U.S.A.
1.508.853.5000; www.allegromicro.com