MPQ70336FS-AEC1数据手册MPS中文资料规格书

描述 Description

The MPQ70336FS-AEC1 is an ASIL-D hardware capable power management IC (PMIC) featuring a buck converter and an integrated, 4-channel voltage monitor. It is engineered for automotive safety applications that require an off-battery safety power supply and additional voltage rails monitored for safety.

The MPQ70336FS-AEC1 features a synchronous, step-down switching regulator that provides up to 4A of peak output current (IOUT) with peak current mode control. The configurable switching frequency (fSW) ranges between 350kHz and 2.5MHz.

High power conversion efficiency across a wide load range is achieved by scaling down fSW under light-load conditions to reduce the switching and gate driving losses. Frequency foldback helps prevent inductor current (IL) runaway during start-up. Thermal shutdown provides fault-tolerant operation.

Each of the four voltage monitor inputs has configurable over-voltage (OV) and under-voltage (UV) thresholds. Highly accurate high-frequency (HF) and low-frequency (LF) voltage monitoring can detect when the voltage thresholds are reached. Two of the inputs are differential, making them optimal for remote voltage-sensing to monitor rails with high current levels.

The MPQ70336FS-AEC1 can record the order in which voltage rails are sequenced, as well as their associated timestamps. The device is accessible through an I2C interface.

With the integration of sophisticated functional safety features including built-in self-testing (BIST), diagnostics, and write protection, this device is targeted to support applications with a high automotive safety integrity level up to ASIL-D.

The MPQ70336FS-AEC1 is available in a TQFN-25 (3mmx6mm) package with wettable flanks.

特性 Features

Designed for Automotive Applications:Load Dump Up to 42V
Cold Crank Down to 3.1V
Operating Junction Temperature (TJ) from -40°C to +150°C
Available in a TQFN-25 (3mmx6mm) Package with Wettable Flanks
Available in AEC-Q100 Grade 1

Highly Integrated Safety Power Supply:4A Peak Output Current (IOUT)
Minimum 65ns On Time and 50ns Off Time
x4 Voltage Monitors
x2 Single-Ended Channels, x2 Differential Channels:Adjustable Over-Voltage (OV) and Under-Voltage (UV) Thresholds for High-Frequency (HF) and Low-Frequency (LF) Components: 0.2V to 5.5V
Accuracy: ±0.5% for >1V, ±5mV for <1V

Power Sequence Recording
Power Good (PG) Output
Over-Current Protection (OCP) with Hiccup Mode

Optimized for EMC/EMI:Frequency Spread Spectrum (FSS) Modulation
Symmetric VIN Pinout
CISPR 25 Class 5 Compliant
350kHz to 2.5MHz Configurable Switching Frequency (fSW)
MeshConnectTM Flip-Chip Package

Flexibility with Digital Configurability:I2C Interface with Packet Error Checking (PEC)
One-Time Programmable (OTP) Memory

Functional Safety:Built-In Self-Testing (BIST)
Interrupt Output Pin (Fault Reporting)
Cyclic Redundancy Check (CRC) Protection on Registers
Write Protection for Critical Registers
Hardware Capable Up to ASIL-D
ISO 26262 Functional Safety Certified