TLE9877QXA20_15 Datasheet, PDF (75/122 Pages) Infineon Technologies AG – Microcontroller with LIN and BLDC MOSFET Driver for Automotive Applications

26.2.1 Block Diagram
TLE9877QXA20
Bridge Driver (incl. Charge Pump)
VCP
VDH
PWM-Unit
CCU6
(not part of the module )
Pre-Driver
SFR
+
VDS
-
>1
VREF
>1
GHx
SHx
+
VDS
GLx
-
VREF
SL
Figure 30 Driver Module Block Diagram (incl. system connections)
Block _Diagram_PreDriver _Cus.vsd
26.2.2 General
The Driver can be controlled in two different ways:
• In Normal Mode the output stage is fully controllable through the SFR registers CTRLx (x = 1,2,3). Protection
functions such as overcurrent and open-load detection are available.
• The PWM Mode can also be enabled by the corresponding bit in CTRL1 and CTRL2. The PWM must be
configured in the System PWM Module (CCU6). All protection functions are available in PWM mode as well.
Protection Functions
• Overcurrent detection and shutdown feature for external MOSFET by Drain Source measurement
• Programmable minimum cross current protection time
• Open-load detection feature in Off-state for external MOSFET.
Data Sheet
75
Rev. 1.0, 2015-04-30