Infineon Technologies OPTIREG™ TLE9744QK Traction Inverter PMIC
Infineon Technologies OPTIREG™ TLE9744QK Traction Inverter Power Management Integrated Circuit (PMIC) is a system chip that includes complete power-supply functionality and application-specific features for high-voltage main traction inverter systems. The power supply includes two pre-regulators to supply separate integrated linear regulator rails for the microcontroller supply, the communication supply, and a precise voltage reference. Two voltage trackers are available to supply off-board sensors. For functional safety support, a safety switch driver for the external N-channel MOSFET power switch is integrated, along with a charge pump that can also supply active reverse-polarity protection circuitry. The Infineon TLE9744QK includes a window watchdog and a functional watchdog, AURIX™ FSP monitoring, low-voltage monitoring, and bidirectional reset/interrupt input/output. Developed according to ISO 26262, this PMIC targets systems up to ASIL D, and supports a junction temperature of up to +150°C.
Features
- Pre-regulator 1/2 - for internal and external post-regulators
- PR1 - 5.8V/5.95V at 2.4A
- PR2 - 10V/12V/15V to 16V at 2.4A, for resolver excitation circuit and gate driver supply
- 5V LDOs for µC-supply and communication supply
- 2x 5V trackers for sensor supplies
- 5V reference LDO
- 32-bit 10MHz SPI with 8-bit CRC
- Configurable watchdog (WWD and FWD) and AURIX FSP monitoring
- Reduced BOM component count, cost, and space
- Interoperable with AURIX and EiceDRIVER™
- Developed per ISO 26262, enabling systems up to ASIL D
- 4V to 36V operating voltage range
- 1%, 2%, 2.5%, and 3% tolerances
- Application specific
- 1x resolver excitation circuit
- Redundant supply input for the safety engine and tracker 2
- Integrated Safety Logic (ISL) for
- Phase current monitoring (3x phases)
- DC-link voltage monitoring
- Gate driver status monitoring
- MCU clock monitoring
- DC-link active discharge control
- Torque control (active short circuit, freewheeling) for a 3-phase motor
- -40°C to +150°C operating temperature range
- PG-LQFP-64 package
Applications
- Electric Vehicle (EV) and Hybrid Electric Vehicle (HEV) drivetrains
- High-voltage main inverter systems
- Motor control and torque control systems
- Gate driver supply and control ecosystems
- Safety-critical automotive control systems
Device Block Diagram
Example Block Diagram
