TLD5541-1QV Datasheet, PDF (57/82 Pages) Infineon Technologies AG – H-Bridge DC/DC Controller with SPI Interface

11.4
EMC optimized schematic
H-Bridge DC/DC Controller with SPI Interface
TLD5541-1QV
Infineon FLAT SPECTRUM Featureset
Figure 35 below displays the Application circuit with additional external components for improved EMC behavior.
VIN
DVS
LPI
RIIN
Alternative
external
VREG supply
CIN2
CPI1 CPI2
CPI3 CPI4
CIN1
VIN
IVCC_EXT
IVCC
Rfilter
R1
Cfilter
R2
R3
CCOMP R_COMP
CSOFT_START
RFREQ
µC SYNC signal
Digital dimminig
Advanced monitoring via µC
+3.3V or +5V
Spread Spectrum ON /OFF via SPI
RSPI
IIN2
IIN1
EN/INUVLO
INOVLO
BST1
BST2
HSGD1
SWN1
COMP
SOFT_START
LSGD 1
SWCS
FREQ
SYNC
PWMI
IINMON
IOUTMON
VDD
CSN
SI
SO
SCLK _VSS
SGND
PGND1
PGND2
LSGD2
SWN2
HSGD2
VFB
FBH
FBL
AGND
DHSG1
M1
RHSG1
DLSG1
M2
RLSG1
CIVCC
D1
D2
RM4
RM1
CBST2
CM1
CBST1
L OUT
CM4
RM2
RM3
CM2
CM3
COUT
M4
RHSG2
M3
RSWCS
DLSG2
RLSG2
DHSG2
CFBH-FBL
CFBH
CFBL
LPO
RFB
RVFBH
RVFBL
CPO1 CPO2
CPO3 CPO4
4LED in
series /
1A
Figure 35 Application Drawing Including Additional Components for an Improved EMC Behavior
Note: The following information is given as a hint for the implementation of the device only and shall not be
regarded as a description or warranty of a certain functionality, condition or quality of the device.
Data Sheet
57
Rev. 1.0, 2016-05-20