TLE8242-2 Datasheet, PDF (74/78 Pages) Infineon Technologies AG – 8 Channel Fixed Frequency Constant Current Control With Current Profile Detection

TLE8242-2
Application Information
6
Application Information
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.
BATTERY
BAT T ERY
INPUT
uC I/O supply
+3.3V or +5.0V
Power Supply
(example TLE7368)
Switched
Battery
OUT
+5V
+5V analog
+
One capacitor for all
V5A pins may be
su f f icien t
µController
(example TC1767)
V_SIGNAL
CS_B
SCK
SI
SO
PHASE_SYNC
RESET_B
ENABLE
V_SIGNAL
CLK
TEST
SCI3
SCO2
SCO3
AMUX
FAULT
GNDD GNDSD V5D
SPI
V5A1
V5A2 V5A3
Channel 7
ChanCnuerlre6nt _Control
ChaCnnuerrle5nt _Control
• PCrhoatenCcnt_uioernlre4nt _Control
•••••••DDCS•••••••PDDCSPCDDiiiuPDDgtariiiurhgratnuiiorgiiatrrhonateogarthnerhgeteagrrtnteee_Coneenreuctnorncsutrconrto_{usttitertstoisiiterocoitntrcinincecnt Control}
•SCiugrnraetnutre
Profile
BAT
Logic
Channel 3
ChaCnnuerrle2nt _Control
ChanCnuerlre1nt _Control
• PCrhotae_Cnctnuioern_{rle0nt Control}
••••••••DDCS•••PDDCS•••PCDDiiiurPDDgiatiuigratrhuiiongatrhrorniigerhttaraongeetearhnreeegt_Conrnecteeuonrcnusotntrrcstt_{uiorsttoietiteosritcinoicrntcinecnt Control}
•SCigunrarteunrte
Profile
POS0
NEG0
OUT0
GNDA1 GNDA2 GNDA3 GNDSA
TLE 8242
Low Z paths are required
between POSx, NEGx and
the sense resistor
0.2 Ohm
SPD15N06S2L-64
The GNDA pins must be
connected to a low
impedance ground plane
directly at the pin
Figure 20 Application Diagram
Note: This is a very simplified example of an application circuit. The function must be verified in the real application.
6.1
Further Application Information
• Please contact us to get the Pin FMEA
• For further information you may contact http://www.infineon.com/
Data Sheet
74
Rev. 1.0, 2010-02-09