TLE9850QX
Arm Cortex-M0 Microcontroller with LIN and Half-Bridge NFET
Driver for Automotive Applications
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1 Overview
Features
32-bit Arm Cortex*-M0 Core
up to 40 MHz clock frequency
one clock per machine cycle architecture
single cycle multiplier
On-chip memory
48 KB Flash (including EEPROM)
4 KB EEPROM (emulated in Flash)
512 bytes 100 Time Programmable Memory (100TP)
4 KB RAM
Boot ROM for startup firmware and Flash routines
Math Co-Processor Unit with Divider Unit for signed and unsigned 32-bit division operations
On-chip OSC and PLL for clock generation
PLL loss-of-lock detection
MOSFET Driver including charge pump for Half-Bridge motor applications
Current Sense Amplifier
High-Side Switch with cyclic sense option and PWM functionality, e.g. for supplying LEDs or switch panels
(min. 150 mA)
4 High Voltage Monitor Input pins for wake-up and with cyclic sense with analog measurement option
10 General-purpose I/O Ports (GPIO)
5 Analog input Ports
10-Bit A/D Converter with 5 analog inputs + VBAT_SENSE + VS + 4 high voltage monitoring inputs
8-Bit A/D Converter with 9 inputs for voltage and temperature supervision
Measurement unit with 12 channels together with the onboard 10-Bit A/D converter and data post
processing
16-Bit timers - GPT12, Timer 2 and Timer 21
* Arm and Cortex are registered trademarks of Arm Limited, UK
Datasheet 1 Rev. 1.0
www.infineon.com 2019-07-26
TLE9850QX
Overview
Capture/compare unit for PWM signal generation (CCU6)
2 full duplex serial interfaces (UART1, UART2), UART1 with LIN support
2 synchronous serial channels (SSC1, SSC2)
On-chip debug support via 2-wire SWD
1 LIN 2.2 transceiver
Single power supply V = 5.5 V to 28 V
S
Extended supply voltage range V = 3 V to 28 V
S
Low-dropout voltage regulators (LDO)
5 V voltage supply VDDEXT for external loads (e.g. Hall-sensor)
Core logic supply at 1.5 V
Programmable window watchdog (WDT1) with independent on-chip clock source
Power saving modes:
Micro Controller Unit slow-down mode
Sleep Mode with cyclic sense option
Cyclic wake-up during Sleep Mode
Stop Mode with cyclic sense option
Power-on and undervoltage/brownout reset generator
Overtemperature protection incl. shutdown
Short circuit protection for all voltage regulators and actuators (High Side Switch)
Loss of clock detection with fail safe mode for power switches
Temperature Range T = -40C to +150C
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Package VQFN-48-31 with LTI feature
Green package (RoHS compliant)
AEC Qualified
Potential applications
Single-phase DC pumps and fans, e.g. HVAC blower
... and other LIN addressed motor control applications
Product validation
Qualified for Automotive Applications. Product Validation according to AEC-Q100/101
Description
TLE985x devices integrate an Arm Cortex-M0 processor and peripherals for motor control, power supply and
communication. Two integrated measurement units (analog-to-digital converters) for monitoring
temperature, battery voltage and four monitoring inputs help to save pins. These inputs can be operated
directly with battery voltage, which saves costs on additional components such as external voltage dividers or
shutdown transistors. Furthermore, the chips are equipped with two full duplex serial interfaces (UART) with
LIN support.
A new feature in the TLE985x family is its adaptive MOSFET driver. The control algorithm is able to compensate
MOSFET parameter spread in the system by automatically adjusting the gate current according to required
Datasheet 2 Rev. 1.0
2019-07-26