EE-SX672电源芯片 TEA1795T/N1

Table of Contents
1 Features.................................................................. 1 7.4 Device Functional Modes........................................ 27
2 Applications ........................................................... 1 7.5 Programming........................................................... 35
7.6 Register Maps......................................................... 40 3 Description ............................................................. 1
8 Application and Implementation ........................ 48 4 Revision History..................................................... 2
8.1 Application Information............................................ 48 5 Pin Configuration and Functions......................... 3
8.2 Typical Applications ................................................ 49 6 Specifications......................................................... 5
8.3 System Examples ................................................... 52 6.1 Absolute Maximum Ratings ...................................... 5
9 Power Supply Recommendations...................... 53 6.2 ESD Ratings.............................................................. 5
9.1 LDO1 Output Voltage Adjustment........................... 53 6.3 Recommended Operating Conditions....................... 5
10 Layout................................................................... 53 6.4 Thermal Information.................................................. 6
10.1 Layout Guidelines ................................................. 53 6.5 Electrical Characteristics........................................... 6
10.2 Layout Example .................................................... 54 6.6 Battery Charger Electrical Characteristics ................ 9
6.7 Serial Interface Timing Requirements..................... 11 11 Device and Documentation Support ................. 55
6.8 Dissipation Ratings ................................................ 11 11.1 Third-Party Products Disclaimer ........................... 55
6.9 Typical Characteristics ............................................ 12 11.2 Community Resources.......................................... 55
11.3 Trademarks ........................................................... 55 7 Detailed Description ............................................ 17
11.4 Electrostatic Discharge Caution............................ 55 7.1 Overview ................................................................. 17
11.5 Glossary ................................................................ 55 7.2 Functional Block Diagram ....................................... 18
7.3 Feature Description................................................. 19 12 Mechanical, Packaging, and Orderable
Information ........................................................... 55

Melexis MLX90821 Relative Pressure Sensors
Melexis MLX90821 Relative Pressure Sensors are factory-calibrated relative pressure sensors that deliver a ratiometric analog output or a digital ** using the SENT protocol. MLX90821 features a MEMS sensor that enables reliable and accurate measurement of low pressures of a few tenths of millibars. These Melexis relative pressure sensors include an optimized architecture and high-density CMOS technology. These design features provide leading automotive electromagnetic compatibility (EMC) performance. The digital-**-processor architecture uses a 16-bit microcontroller to provide high initial accuracy of pressure and optional external NTC temperature.
FEATURES
High accuracy relative pressure sensor
Ratiometric analog output or digital SENT output with available compensated ±1°C accurate NTC temperature information
System in a package
MEMS
Analog front end circuitry
16-bit microcontroller
Analog back end circuitry
Voltage regulators
Automotive qualified and automotive diagnostic features
Clamping levels
Broken track diagnostics
Multiple internal fault diagnostics
Factory calibrated or fully programmable through the connector for customized calibration curves
Backside exposed relative pressure sensor for higher resistance to common automotive media
Robust, easy-to-seal package
SPECIFICATIONS
18V supply voltage
-14V reverse voltage protection
18V positive output voltage
-0.5V reverse output voltage
-40°C to +150°C automotive temperature range
-40°C to +125°C programming temperature range
3.75bar burst pressure at room temperature
APPLICATIONS
Fuel vapor pressure sensors
Crankcase ventilation pressure sensors
Pressure sensors for filter monitoring

满足（EN50155/IEC60571:1998）TB/T3021-2001铁道机车车辆电子装置标准对电源的输入要求
2、具备110V标准电压输入，输入范围达40-160V，能够同时适用于72V、96V、110V等3个标准输入电压总线
3、具备3.3V、5V、12V、15V、24V、48V、54V等输出电压，能较大地满足机车各种供电要求
4、输出功率范围：6-250W
5、工作温度范围可满足：-40℃ to +105℃
6、隔离电压：3000VAC/2250-3000VDC
点击系列号可查看更多型号和申请样品。
以下系列参数仅供参考，详细技术参数请以技术规格书为准。
系列标题 功率 (W) 输入电压(VDC) 输出电压(VDC) 输出路数 隔离电压(VDC) 封装形式 封装尺寸 (mm) 认证 PDF
URA1D_YMD-6WR3 6 40~160 5~15 2 2250 DIP 25.40*25.40*11.70 -
URB1D_YMD-6WR3 6 40~160 5~24 1 2250 DIP 25.40*25.40*11.70
URB1D_LMD-10WR3 10 40~160 3.3~24 1 2250 DIP 50.80*25.40*11.80 -
URB1D_LMD-15WR3 15 40~160 3.3~24 1 2250 DIP 50.80*25.40*11.80 -
URE1D_LD-20WR3 20 40~160 12~24 2 3000 DIP 50.80*25.40*11.80 -
URB1D_LD-20WR3 20 40~160 3.3~24 1 2250 DIP 50.80*25.40*11.80 -
URB1D_LMD-20WR3 20 40~160 3.3~24 1 2250 DIP 50.80*25.40*11.80 -
URF1D_LD-40WR3 40 40~160 3.3~48 1 3000 DIP 50.80*25.40*11.80
URF1D_QB-50W 50 66~160 3.3~24 1 3000 DIP 60.80*39.20*12.70 -
URF1D_QB-50WR3 50 43~160 3.3~48 1 3000VAC DIP 60.80*39.20*12.70 -
URF1D_QB-50WHR3 50 43~160 3.3~48 1 3000VAC DIP(带散热片） 60.80*39.20*27.80 -
URF1D_QB-75W 75 66~160 5~24 1 3000 DIP 60.80*39.20*12.70 -
URF1D_QB-75WR3 75 43~160 3.3~48 1 3000VAC DIP 60.80*39.20*12.70 -
URF1D_QB-75WHR3 75 43~160 3.3~48 1 3000VAC DIP(带散热片） 60.80*39.20*27.80 -
URF1D_QB-100W 100 66~160 12~24 1 3000 DIP 60.80*39.20*12.70 -
URF1D_QB-100WR3 100 43~160 3.3~48 1 3000VAC DIP 60.80*39.20*12.70 -
URF1D_QB-100WHR3 100 43~160 3.3~48 1 3000VAC DIP(带散热片） 60.80*39.20*27.80

Texas Instruments OPA2834高速运算放大器
Texas Instruments OPA2834高速运算放大器具有双通道、**低功耗、轨到轨输出、负轨输入和电压反馈 (VFB) 特性。OPA2834运算放大器设计用于在2.7V至5.4V的单电源电压范围内，或±1.35V至±2.7V的双电源电压范围内工作。该放大器每通道仅消耗170µA电流，单位增益带宽为50MHz，为轨到轨放大器设定了行业的性能功率比。
OPA2834为要求低功耗的电池供电和便携式应用提供出色的带宽与IQ比。OPA2834高速运算放大器具有较低的失真，因此非常适合用于数据采集系统和麦克风前置放大器。
特性
**低功耗：
电源电压：2.7V至5.4V
静态电流 (IQ)：170µA/通道（典型值）
带宽：50MHz (G = 1V/V)
压摆率：26V/µs
建立时间 (0.1%)：88ns（2VSTEP）
HD2、HD3：–131dBc、–146dBc（10kHz，2VPP）
输入电压噪声：12nV/√Hz (f = 10kHz)
输入失调电压：350µV（±1.9mV值）
负轨输入、轨到轨输出 (RRO)
输入电压范围：–0.2V至3.9V（5V电源）
工作温度范围：–40°C至+125°C
应用
电源中的电流检测
低功耗信号调理
电池供电应用
便携式录音器
低功耗SAR和ΔΣ ADC驱动器
便携式设备