MC33972: 带抑制唤醒的MSDI

带抑制唤醒功能的33972多开关检测接口可检测最多22个开关触点的关闭和开启。开关状态(开启或关闭)会通过一个串行外设接口(SPI)传输至微处理器(MCU)。该器件还具备一个22对1模拟复用器,可将输入读取为模拟值。模拟输入信号经过缓冲,并且在AMUX输出引脚上提供以供MCU读取。

33972器件具有两种运行模式:正常和睡眠。正常模式允许对器件进行编程,在检测开关状态变化时,为开关触点提供上拉或下拉电流。睡眠模式提供低静态电流,使33972成为面向需要低睡眠状态电流的汽车和工业控制产品的理想产品。

恩智浦建议在新设计使用“A”版器件。

特性
  • 使用3.3V/5.0V SPI协议可直接与微处理器连接
  • 可选择状态更改的唤醒功能
  • 8个可编程输入(电池开关或接地开关)
  • 14个开关接地输入
  • 开关状态更改时主动中断(INT)
  • 开关电压范围-14 – VPWR
  • 工作电压5.5 V – 26 V (VPWR)
  • 本产品包含在恩智浦产品长期供货计划中,自推出后至少保证15年供货
NXP® MC33972 Power Actuation Block Diagram
graphic
推荐文档 (1)
名称/描述类型Modified Date
MC33972, Multiple Switch Detection Interface with Suppressed Wake-up (REV 19.0) PDF (1.3 MB) MC33972 [English]数据手册
数据手册 (1)
名称/描述Modified Date
MC33972, Multiple Switch Detection Interface with Suppressed Wake-up (REV 19.0) PDF (1.3 MB) MC33972 [English]15 Mar 2012
应用说明 (1)
名称/描述Modified Date
AN2409, Small Outline Integrated Circuit (SOIC) Package - Application Note (REV 3.0) PDF (3.3 MB) AN2409 [English]21 Oct 2014
用户指南 (1)
名称/描述Modified Date
KIT33972AEWEVBE, Evaluation Board - User Guide (REV 1.0) PDF (1.6 MB) KT33972UG [English]29 Jul 2013
手册 (4)
名称/描述Modified Date
BR1569, Analog ICs Integrated Solutions Applications - Brochure (REV 15.0) PDF (1.1 MB) BR1569 [English]19 Nov 2015
汽车电子解决方案手册 (REV 3) PDF (5.2 MB) BRAUTOSOL [中文, English]12 Nov 2012
BR1568, Analog ICs Integrated Solutions Packaging - Brochure (REV 6.0) PDF (1.7 MB) BR1568 [English]19 Oct 2012
BR1567, Analog ICs Integrated Solutions Technology - Brochure (REV 3.0) PDF (5.4 MB) BR1567 [English]01 Mar 2011
选型工具指南 (1)
名称/描述Modified Date
SG187, 汽车, Q3 2015, Rev. 59 - 选型指南 (REV 54) PDF (1.4 MB) SG187 [中文, English]07 Jan 2014
订购信息
型号状态状态器件功能封装类型和焊端数预算报价(不含税)(CNY)负载电流 (Typ) (A) (IL)通道数漏源导通电阻 (Typ) (mOhm) (RDS(ON))每路输出电流限值 (Min) (A) (ILIM)负载供电电压 (Min) (V)负载供电电压 (Max) (V)供电电压 (Min-Max) (V)接口和输入控制工作环境温度 (Min-Max) (°C)保护诊断其他特性-模拟RoHS
MC33972TEWActiveSignal Conditioning, Switch MonitoringSOIC 321K @ CNY9.765.5263.1 to 5.25SPI-40 to 125N/ASPIPulse wetting current[object Object]
MC33972ATEWR2ActiveSignal Conditioning, Switch MonitoringSOIC 321K @ CNY10.445.5263.1 to 5.25SPI-40 to 125N/ASPIPulse wetting current[object Object]
MC33972ATEKR2ActivePowertrain Control, Signal Conditioning, Switch MonitoringSOIC-EP 321K @ CNY10.445.5263.1 to 5.25SPI-40 to 125N/ASPIPulse wetting current[object Object]
MC33972ATEWActiveSignal Conditioning, Switch MonitoringSOIC 321K @ CNY10.445.5263.1 to 5.25SPI-40 to 125N/ASPIPulse wetting current[object Object]
MC33972ATEKActivePowertrain Control, Signal Conditioning, Switch MonitoringSOIC-EP 321K @ CNY10.445.5263.1 to 5.25SPI-40 to 125N/ASPIPulse wetting current[object Object]
MC33972TEWR2ActiveSignal Conditioning, Switch MonitoringSOIC 321K @ CNY9.765.5263.1 to 5.25SPI-40 to 125N/ASPIPulse wetting current[object Object]
封装环保信息
封装说明Outline Version包装产品状态部件编号化学成分RoHS / Pb Free中国RoHS查询MSLPPT (°C)
SOIC-EP 32 7.5*11*2.398ASA00259DMPQ - 42 TRAYPOQ - 3360 BOXActiveMC33972ATEKMC33972ATEK.pdf3260
MPQ - 1000 REELPOQ - 1000 BOXActiveMC33972ATEKR2MC33972ATEKR2.pdf3260
SOIC 32 300ML98ARH99137AMPQ - 42 RAILPOQ - 3360 BOXActiveMC33972ATEWMC33972ATEW.pdf3260
MPQ - 1000 REELPOQ - 1000 BOXActiveMC33972ATEWR2MC33972ATEWR2.pdf3260
MPQ - 42 RAILPOQ - 3360 BOXActiveMC33972TEWMC33972TEW.pdf3260
MPQ - 1000 REELPOQ - 1000 BOXActiveMC33972TEWR2MC33972TEWR2.pdf3260
MC33972, Multiple Switch Detection Interface with Suppressed Wake-up MC33972
AN2409, Small Outline Integrated Circuit (SOIC) Package - Application Note mc33797
KIT33972AEWEVBE, Evaluation Board - User Guide MC33972
BR1569, Analog ICs Integrated Solutions Applications - Brochure mc33797
Automotive Solutions Brochure mc33797
BR1568, Analog ICs Integrated Solutions Packaging - Brochure mc33797
BR1567, Analog ICs Integrated Solutions Technology - Brochure mc33797
SG187, Automotive, Q3 2015, Rev. 59 - Selector Guide mc33999
98ASA00259D MC33903
MC33972ATEK.pdf MC33972
MC33972ATEKR2.pdf MC33972
98ARH99137A MC33689
MC33972ATEW.pdf MC33972
MC33972ATEWR2.pdf MC33972
MC33972TEW.pdf MC33972
MC33972TEWR2.pdf MC33972