IC, engine_control

Application & Technical Summary

System supply, power stages and CAN phy combined in one chip.

CY329 is a high-end system basis IC with power stages for powertrain control units. A configurable pre-regulator keeps the ECU running down to 3V battery voltage. A system supply wakeup process can be configured for most efficient start. The switched mode buck converter for the microcontroller core voltage reduces power dissipation significantly. It communicates using micro second channel (MSC) interface.

Product benefits

Integrated CAN-FD physical layer
Power stages with integrated clamping and diagnosis
3 level Watchdog for VDA 2.0 compliance

Flexible and balanced power concept

to reduce hot spots on PCB.

Technical Features


Type	System basis IC
Package	TQFP64_ePad
Features	Battery supply can be configured as permanent or non-permanent with or without CAN wake-up capability Minimal power dissipation Standby current down to 55 µA Suitable for ASIL D systems
Output voltages	System: 5 V / 550 mA, 5 V / 950 mA Sensors: 3 x 5 V
Interfaces	MSC bus 1 x CAN-FD physical layer
Inputs	Ignition 3 wake up pins Wake up on CAN External 5V monitor
Outputs	Main relay control: 1 x LSPS 7 × LS power stage: Ron_max = 2.4 Ohm / UClamp = 55 V 1 × HS power stage: Ron_max = 2.4 Ohm, dedicated supply pin
Tj min [°C]	-40°C
Tj max [°C]	150°C

TQFP64_ePad (10 × 10 mm)

Product information

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Automotive System ICs