TLD5541-1QV Datasheet, PDF (72/82 Pages) Infineon Technologies AG – H-Bridge DC/DC Controller with SPI Interface

H-Bridge DC/DC Controller with SPI Interface
TLD5541-1QV
Serial Peripheral Interface (SPI)
Table 12-3 Register description (cont’d)
Register name Field
Bits Type Purpose
MFSSETUP1
MFSSETUP2
LEDCHAIN
EOMFS
SOMFS
ILIM_HALF
EA_IOUT_MFS
MFSDLY
3:0 r/w
4r
5 r/w
6 r/w
7 r/w
7:0 r/w
Multifloat Switch and LED Count configuration Register
Number of LEDs in series informations bits: change the
V_{VFB1,2_S2G} threshold and set the MFS jump Initial/Final LED
number
0001_B, 1 LED
0010_B, 2 LEDs
0011_B, 3 LEDs
0100_B, 4 LEDs
0101_B, 5 LEDs
0110_B, 6 LEDs
0111_B, 7 LEDs
1000_B, (default) 8 LEDs
1001_B, 9 LEDs
1010_B, 10 LEDs
1011_B, 11 LEDs
1100_B, 12 LEDs
1101_B, 13 LEDs
1110_B, 14 LEDs
1111_B, 15 LEDs
0000_B, 16 LEDs
End of MFS routine bit:
0_B , (default) MFS routine not completed, not successful
performed or never run.
1_B , MFS routine successfully performed (is reset to 0_B
when SOMFS is set to 1_B).
Start of MFS routine bit:
0_B , (default) MFS routine not activated
1_B , MFS routine activated
Adjust Current Limit (Switch Peak Over Current Threshold)
during MFS operation:
0_B , (default) Switch Peak Over Current Threshold 100%
1_B , Switch Peak Over Current Threshold 50%
Bit to decrease the saturation current of the error amplifier
(A6) in current mode control loop only during MFS routine:
0_B , (default) inactive
1_B , active: error amplifier current reduced to 20%
Multifloatswitch configuration register 2 (delay time
programming)
00000000_B, smallest delay time in respect to f_SW
11111111_B, largest delay time in respect to f_SW
10000000_B, (default) delay time in respect to f_SW
Data Sheet
72
Rev. 1.0, 2016-05-20