BD3378MUV-M
车载用 多输入监控LSI

BD3378MUV-M是22通道的开关输入监测LSI。其作用是监测各通道所连接的机械开关的状态变化、使MCU产生中断。使用串行接口读取中断因素并写入内部寄存器。22通道的开关输入分为VPUB、VPUA两种电源系统,可按电池系统和电源控制系统分类使用。动作模式备有常规模式和睡眠模式两种。各模式可通过设定寄存器,使用开关端子连续监测设定和间歇监测设定。使用间歇监测设定时是以固定周期监测开关状态变化,可降低功耗。而且,通过使用各种电源系统时序动作和全部开关统一时序动作设定,还能实现低噪声动作。

主要规格

 
型号 | BD3378MUV-ME2
Status | 推荐品
封装 | VQFN48MCV070
包装数量 | 1500
最小独立包装数量 | 1500
包装形态 | Taping
RoHS | Yes
Functional Safety | FS supportive

特性:

Common Standard

AEC-Q100 (Automotive Grade)

Fully Functional Voltage(Min.)[V]

6.0

Fully Functional Voltage(Max.)[V]

28.0

VDDI Supply Voltage(Min.)[V]

3.1

VDDI Supply Voltage(Max.)[V]

5.25

Switch Input Number

22

Switch Input Voltage(Min.)[V]

-14.0

Switch Input Voltage(Max.)[V]

40.0

Wetting Current (Min)

1mA, 3mA, 5mA, 10mA, 15mA

Wetting Current Type

Pull up / Pull down

Intermittent Monitoring Current [µA]

100

Control Interface

SPI

Clock Frequency (Max)[MHz]

4.4

Operating Temperature (Min.)[°C]

-40

Operating Temperature (Max.)[°C]

125

特点:

  • AEC-Q100 Qualified(Grade 1)
  • Uses 3.3V/5.0V SPI Protocol in Communicating with the MCU
  • Serial Communication Error Checking through 8bit-CRC
  • Thermal Shutdown Protection (TSD)
  • Power on Reset (POR)
  • Selectable Source/Sink Current Levels through Register Settings
  • Wetting Current Timer Capability
  • 8 Source or Sink Input Pins (VPUA)
  • 14 Source Input Pins
  • Separable Power Supply VPUA: 16ch (INA&INZ), VPUB: 6ch (INB)
  • Interrupt Notification upon Switch Status Change
  • 1 Time to 6 Times Matched LPF that Eliminates Input Pin Noise
  • Low Current Consumption (Intermittent Monitoring)
  • Status Display of Selected Pin at DMUX Pin

设计资源

 

技术记事

Schematic Design & Verification

  • 旁路电容器的阻抗特性

Thermal Design

  • 热阻、热特性参数

设计模型

Simulations (Login Required)

  • Method for Exporting Circuit Data (ROHM Solution Simulator)

2D/3D/CAD

  • VQFN48MCV070 Footprint / Symbol

封装和质量数据

Manufacturing Data

  • Factory Information

Environmental Data

  • REACH SVHC Non-use Declaration