TLE7189QK_09 Datasheet, PDF (12/29 Pages) Infineon Technologies AG – PRO-SILTM 3-Phase Bridge Driver IC

TLE7189QK
Description and Electrical Characteristics
5
Description and Electrical Characteristics
5.1
MOSFET Driver
5.1.1 Output Stages
The 3 low side and 3 high side powerful push-pull output stages of the TLE7189QK are all floating blocks, each
with its own source pin. This allows the direct connection of the output stage to the source of each single MOSFET,
allowing a perfect control of each gate-source voltage even when 200A are driven in the bridge with rise and fall
times clearly below 1µs.
All 6 output stages have the same output power and thanks to the used charge pump principle they can be
switched all up to 30kHz.
Its output stages are powerful enough to drive MOSFETs with 400nC gate charge with approx. 150ns fall and rise
times or even to run 12 MOSFETs with 200nC each with fall and rise times of approx. 150ns.
Maximum allowed power dissipation, max. junction temperature and the capabilities of the charge pump limit the
use for higher frequencies.
Each output stage has its own short circuit detection block. For more details about short circuit detection see
Chapter 5.2.1.
VS
INH
ERR1
ERR2
+3.3V
ENA
R1
SCDL
R2
IH1
IL1
IH2
IL2
IH3
IL3
UVLO
Error logic
Reset
Power On Reset
Under voltage
Over voltage
Over temperature
Short circuit+disable
SCD
lock / unlock
Input logic
shoot through
protection
dead time
ON / OFF
ON / OFF
CL1 CH1 CB1 CL2 CH2 CB2
Charge pump 1
Charge pump 2
Under voltage lock out
Level
SCD
shifter
SCD
short circuit filter
Level
shifter
VDH
100 Ω
CB2
To Vbat
SCD
+
-
V_SCP
Floating HS driver 3x
CB1
GHx
SHx
SCD
+
-
V_SCP
GLx
Floating LS driver 3x
SLx
Shuntx
GND
P-GND
Figure 3 Block Diagram of Driver Stages including Short Circuit Detection
Data Sheet
12
Rev. 2.0, 2009-07-10