Main features of the monolithic integrated circuit TLE9266QX

The TLE9266QX is a monolithic integrated circuit packaged in an exposed pad VQFN-48 (7mm & TImes; 7mm) power supply. The device is designed for a variety of CAN-LIN body applications and can act as a power supply for the microcontroller and as an interface to the CAN and LIN bus networks. To support these applications, the System Basis Chip (SBC) provides many key features such as a 5V Low Dropout Regulator (LDO) for microcontroller power supplies, sensor supply, 5V low dropout regulator with short circuit protection. The HS-CAN transceiver and LIN transceiver for data transfer, the low/high side switch with protection and the 16-bit serial peripheral interface (SPI) for control and monitoring of the device. A window watchdog circuit with reset characteristics, fault output, and undervoltage reset characteristics is also implemented.

The device offers a low power mode to support long-term battery-connected applications. Wake-up from low-power mode can be done via messages on the bus, dual-level sensitive monitoring/wake-up inputs, and cyclic wake-up. The device is designed to withstand the harsh conditions of automotive applications.

Quiet current consumption in stop and sleep mode is extremely low

Cycle-cycle sensing in normal, stop, and sleep modes

Cycle cycle wake-up in normal and stop modes

5V, 250mA Low Dropout Regulator

5V, 100mA Low-Dropout Regulator with Stable Short-Circuit Protection

High-speed CAN transceiver ISO11898-2/5

LIN transceiver LIN2.2, J2602-2

2 low-side outputs with active Zener clamp function for relay drive

Two 2Ω (typ) high-side outputs, four 7Ω (typ) high-side outputs for LED illumination, loop sensing, etc.

4 independent PWM generators and 2 on/off timers

3 universal high voltage wake-up inputs for voltage level monitoring with loop sensing

Alternating high voltage measurement for battery voltage sensing

1 universal low-voltage wake-up input for voltage level monitoring with loop sensing

SYNC input for external loop sensing control via microcontroller

Reset output and fault output

Over-temperature and short-circuit protection

Wide input voltage and temperature range

Green product (in compliance with RoHS directive), passed AEC certification

Ultra-low quiescent current in stop and sleep modes

Wide power supply input voltage and temperature range

Flexible configuration possibilities and extensive diagnostics via 16-bit SPI interface

Integrated fail-safe and monitoring

Pin compatible between all members

Software compatible for all members of the new generation SBC series

Simplified ECU hardware and software development

Reduced system cost with low component count and smaller PCB space

High pin count PG-VQFN-48 package saves board space and optimizes thermal performance

Excellent EMC and ESD performance, in line with major automotive OEM requirements

Green product (in compliance with RoHS directive), passed AEC certification

Door control unit

Central body computer

Low cost body control

HVAC control module

Luggage control module

Seat control

Roof module

Figure 1 TLE9266QX block diagram

Table 1 Application block diagram material list

Figure 2 TLE9266QX simplified application block diagram: alternating measurement function through WK1 and WK2

SBC Driver Evaluation Board

The SBC drive family is specifically designed for automotive applications such as door, seat control, HVAC and body controllers. These devices contain 1 LIN and / or CAN physical interface.

The SBC Driver Evaluation Board is designed to provide an easy-to-use tool to familiarize yourself with the device and perform application testing. The EV kit includes an SBC driver application board with a 96-pin connector for connection to the Power Easy kit (microcontroller board).

The Power Easy Suite is a test and development platform for use with Infineon devices. The kit uses a 16-bit microcontroller based on the XC2000 processor family of high-performance C166S V2 cores. The Power Easy kit board is designed with a dedicated 96-pin connector for board expansion testing, which is connected to an application board such as an SBC driver.

Main features of the SBC driver evaluation board

Quiet current consumption in stop and sleep mode is extremely low

Cycle-cycle sensing in normal, stop, and sleep modes

Cycle cycle wake-up in normal and stop modes

5V, 250mA Low Dropout Regulator

5V, 100mA Low-Dropout Regulator with Stable Short-Circuit Protection

High-speed CAN transceiver with local network function ISO11898-2/5

LIN transceiver LIN2.1, J2602

2 low-side outputs with active Zener clamp function for relay drive

Two 2Ω (typ) high-side outputs, four 7Ω (typ) high-side outputs for LED illumination, loop sensing, etc.

4 independent PWM generators and 2 on/off timers

3 universal high voltage wake-up inputs for voltage level monitoring with loop sensing

Alternating high voltage measurement for battery voltage sensing

1 universal low-voltage wake-up input for voltage level monitoring with loop sensing

SYNC input for external loop sensing control via microcontroller

Reset output and fault output

Over-temperature and short-circuit protection

Wide input voltage and temperature range

Green product (in compliance with RoHS directive), passed AEC certification

Figure 3 Connection diagram of the power board (left) and the SBC driver evaluation board (right)