MPQ70161FS-AEC1数据手册MPS中文资料规格书

描述 Description

The MPQ70161FS-AEC1 is a power management IC (PMIC) designed to meet the power management requirements of processors used in various safety-relevant automotive systems.

The six integrated, synchronous buck converters can be configured as 3-rail, dual-phase or 6-rail, single-phase converters. With dynamic voltage scaling, the output voltage (VOUTx, where x = 1~6) of each converter can be changed during normal operation. The PMBus interface provides packet error checking (PEC) and an integrated multi-page one-time programmable (MOTP) memory, which allows for a high degree of configurability.

To prevent overshoot during start-up, soft-start (SS) functionality is featured on each converter. In addition, to allow for proper discharging during shutdown, soft-shutdown functionality is featured on each converter. The slew rate for both functions can be configured via the digital registers.

The MPQ70161FS-AEC1 also features a configurable windowed or Q&A watchdog and dedicated WDI pin, an external voltage monitor, and a sequence output pin. 2MHz fixed frequency peak current mode control regulates VOUTx, offers fast transient performance, and allows for a large reduction in external inductance and capacitance. Frequency spread spectrum (FSS) reduces EMI noise.

The MPQ70161FS-AEC1 is ASIL-D hardware capable. Built-in self-testing (BIST) is implemented to perform self-diagnostics on critical analog and logic functions. Voltage monitoring is implemented for the output rails, along with critical internal voltage signals. Clock monitoring and thermal monitoring are implemented as well. The safety-related blocks have independent voltage regulators, bandgap, and oscillators. It has been developed under MPS's advanced MPSafeTM functional safety product development process, which has been independently certified to meet ISO 26262 guidelines.

The MPQ70161FS is available in a TQFN-32 (5mmx5mm) package, and is available in AEC-Q100 Grade 1.

特性 Features

• Designed for Automotive Applications:
• 2.7V to 5.5V Input Voltage (VIN) Range
• -40°C to +150°C Junction Temperature (TJ) Rating

• Reduces Board Size and BOM:
• 2x 2A Buck Converters
• 4x 1A Buck Converters
• Optional Multi-Phase Operation
• Dynamic Voltage Scaling

• Optimized for EMC/EMI:
• 180° Phase Shift between Bucks
• 2MHz Fixed Switching Frequency (fSW)
• Frequency Spread Spectrum (FSS)

• Additional Features:
• Multi-Page One-Time Programmable (MOTP) Memory
• External Voltage Monitor
• Windowed or Q&A Watchdog Timer
• Available in a TQFN-32 (5mmx5mm) Package with Wettable Flanks
• PMBus Interface with Packet Error Checking (PEC)
• Available in AEC-Q100 Grade 1

• Functional Safety:
• ASIL-D Hardware Capable
• Failsafe State Machine
• Built-In Self-Testing (BIST)
• Clock Monitoring
• Voltage Reference Monitor
• Protected Memory and Registers
• Documents Available for ISO 26262 System Design
• Failure Modes Effects and Diagnostic Analysis (FMEDA)
• Safety Manual