TLE82453-3SA_15 Datasheet, PDF (60/71 Pages) Infineon Technologies AG – 3 Channel High-Side and Low-Side Linear Solenoid Driver IC

TLE82453-3SA
SPI Registers
12.8
DITHER REGISTER
DITHER
Dither Register
Reset Value: 1x00 0000_H
31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16
R/W 0
0
1
1
not
used
Channel #
EN
SYNC
CFB
MODE
not used
15 14 13 12 11 10
9
8
7
6
5
4
3
2
1
0
Number of dither steps
not used
Dither step size
Field
Bits
R/W
31
Channel
25:24
EN
23
SYNC
22
CFB MODE 21
Steps
15:10
Step Size 5:0
Type
rw
rw
rw
rw
rw
rw
rw
Description
Read / Write bit
0 = Read
1 = Write
When reading this register, the R/W bit is 0
Channel Number
00 = LOAD0
01 = LOAD1
10 = LOAD2
Enable dither for the addressed channel
1 = enable dither
0 = disable dither (reset value)
Enable Synchronization of Dither to PWM frequency
1 = enable synchronization - start of dither synched to start of PWM
cycle
0 = disable synchronization - free running dither (Reset value)
Mode for Current Feedback
1 = Min / Max / PWM periods per dither period
0 = Average current and switching period
Set the dither steps of the addressed channel (Reset value = 0)
number of steps in a quarter dither cycle. Step duration = 1/Fdith
Set the dither stepsize of addressed channel (Reset value = 0)
lsb = (1500/2047) mA. Note: the product of the Steps and Step Size
values must not exceed 1023, otherwise the dither waveform will be
incorrect.
Data Sheet
-
60
Rev 1.0, 2015-03-27