EVQ70332FS-QK-00A

The EVQ70332FS-QK-00A is an evaluation board designed to demonstrate the capabilities of the MPQ70332FS-AEC1, an ASIL-B compliant power management IC (PMIC) with advanced safety features for automotive applications. It consists of a high-voltage (HV) primary synchronous buck converter, a low-voltage (LV) secondary synchronous buck converter, and a synchronous boost converter, with excellent transient response. Voltage monitoring is implemented via a voltage supervisor, which monitors the battery input voltage (VIN), output rails, two external channels, and critical internal voltage signals, including the VCC voltage (VCC) and bandgap reference. Clock monitoring, leakage monitoring, and thermal monitoring are also implemented. Built-in self-testing (BIST) is included for critical analog and logic functions. A failsafe state machine manages fault handling and controls the safety outputs. An integrated, configurable watchdog can be configured in both window and Q&A mode. The safety-related blocks have independent voltage regulators, bandgaps, and oscillators, which offer redundancy to achieve failsafe operation. The serial peripheral interface (SPI) allows for flexibility through configurability. The one-time programmable (OTP) memory allows settings to be permanently stored. SPI transactions and the data in the registers and OTP are protected via cyclic redundancy check (CRC). The EVQ70332FS-QK-00A is a fully assembled and tested evaluation board. The MPQ70332FS-AEC1 is available in a TQFN-34 (6mmx6mm) package with wettable flanks, and is AEC-Q100 qualified.