MPQ70342FS-AEC1

MPQ70342FS-AEC1

MPSafe^TM ASIL-B, 36V, 3-Channel PMIC, AEC-Q100 Qualified

详情

The MPQ70342FS-AEC1 is a functional safety power management IC (PMIC) solution that integrates three high-efficiency step-down DC/DC converters. The wide 3.5V to 36V input voltage (V_IN) range makes the PMIC well-suited for various automotive and industrial applications.

Constant-on-time (COT) control with a phase-locked loop (PLL) provides a fast transient response time. During forced continuous conduction mode (FCCM), the fixed 2.2MHz switching frequency (f_SW) greatly reduces external inductor and capacitor requirements.

The I²C interface allows for application flexibility. The output voltage (V_OUT), power sequence, and protection thresholds can all be adjusted via the I²C interface. Fault statuses can also be monitored. Robust fault protection features include under-voltage lockout (UVLO), over-current protection (OCP), over-voltage protection (OVP), under-voltage protection (UVP), and thermal shutdown (TSD).

The MPQ70342FS-AEC1 supports applications with a high automotive safety integrity level up to ASIL-B. Functional safety features include analog built-in self-testing (ABIST), diagnostics, watchdog, and a PG output pin. The MPQ70342FS is developed under MPS’s advanced MPSafe^TM functional safety product development process, which has been independently certified to meet ISO 26262 guidelines.

The MPQ70342FS-AEC1 minimizes external component count, and is available in a space-saving QFN-15 (2.5mmx3.5mm) package with wettable flanks. It is available in AEC-Q100 Grade 1.

产品特性和优势

Optimized for Automotive Applications:
- Buck 1: 600mA with 3.5V to 36V Input Voltage (V_IN)
- Buck 2: 600mA with 3.5V to 36V V_IN
- Buck 3: 1A with 2.5V to 5.5V V_IN Optimized for EMC/EMI
- 2.2MHz Fixed Switching Frequency (f_SW)
- Frequency Spread Spectrum (FSS) with On/Off Function
- Symmetric Input Capacitor for Improved EMI
- CISPR 25 Class 5 Compliant
- MeshConnect^TM Flip-Chip Package
Additional Features:
- Forced Continuous Conduction Mode (FCCM)
- Window Watchdog
- Over-Current Protection (OCP) with Valley Current Detection and Hiccup Mode
- Power Good (PG) Output
- I²C Interface with Packet Error Checking (PEC)
- Available in a QFN-15 (2.5mmx3.5mm) Package
- Available with Wettable Flanks
- Available in AEC-Q100 Grade 1

Functional Safety:

Hardware Capable to ASIL-B
Integrated Analog Built-In Self-Testing (ABIST) and Reference Monitor
Documents Available to Aid ISO 26262 System Design
Failure Modes Effects and Diagnostic Analysis (FMEDA)
Safety Manual

正在供货产品型号

MPQ70342FSGRHE-xxxxAEC1-Z MPQ70342FSGRHE-xxxxAEC1-P MPQ70342FSGRHE-0000AEC1-Z MPQ70342FSGRHE-0000AEC1-P

P&Z的含义

相关产品

MPQ70340FS-AEC1 基于 MPSafe^TM 开发流程的ASIL-B、36V、4通道 PMIC，带 3 个降压变换器和1个LDO，符合 AEC-Q100 认证

MPQ70340FS-AEC1是一款电源管理 IC ( PMIC ) 解决方案，它集成了3个高效率降压 DC/DC 变换器和一个低噪声LDO。该器件具有独特的双级36V降压架构，应用于高分辨率摄像头模块中时，可最大限度地提高 CMOS 传感器中1.8V图像传感器输入/输出 (I/O) 轨的效率。

MPQ70340FS-AEC1采用带锁相环 (PLL) 的恒定导通时间(COT)控制，可提供快速瞬态响应时间。在强制连续导通模式 (FCCM) 下，其2.2MHz 的固定开关频率 (f_SW) 可大幅降低外部电感和电容需求。

该器件提供PMBus接口以实现灵活的应用。其输出电压 (V_OUT)、上电时序和保护阈值均可通过PMBus接口进行调节；故障状态也可通过该接口进行监控。其强大的故障保护功能包括欠压锁定 (UVLO)保护、过流保护 (OCP)、过压保护 (OVP)、欠压保护 (UVP) 和过温关断 (TSD)保护。这些参数均通过一次性可编程 (OTP) 存储器由工厂设置。

MPQ70340FS-AEC1符合 ISO 26262 ASIL-B 硬件标准。其功能安全特性包括模拟内置自检 (ABIST)、诊断功能、窗口看门狗定时器和 PG 输出引脚。该器件采用了MPS先进的 MPSafe^TM 功能安全产品开发流程，并已通过独立认证，符合 ISO 26262 标准。

该器件最大限度地减少了所需外部元件数量，并采用节省空间的侧面镀锡QFN-15 (2.5mmx3.5mm) 封装，符合 AEC- Q100 等级1认证。