型号AMC1411-Q1
品牌
分类隔离式放大器
描述具有高 CMTI 的汽车类 2V 输入、精密电压检测增强型隔离式放大器
相关操作
产品概述

参数

Device type Voltage sensing
Peak-to-peak input voltage range (V) 2
Isolation rating Reinforced
Withstand isolation voltage (VISO) (Vrms) 7500
Working isolation voltage (VIOWM) (Vrms) 1600
Transient isolation voltage (VIOTM) (VPK) 10600
CMTI (min) (kV/µs) 100
Creepage (min) (mm) 15.7
Clearance (min) (mm) 15.7
Input offset (±) (max) (V) 0.0015
Input offset drift (±) (typ) (V/°C) 0.000003
Rating Automotive
Operating temperature range (°C) -40 to 125
TI functional safety category Functional Safety-Capable

封装 | 引脚 | 尺寸

SOIC (DWL) 8 106.24 mm² 6.4 x 16.6

特性

  • AEC-Q100 qualified for automotive applications:
    • Temperature grade 1: –40°C to +125°C, TA
  • Functional Safety-Capable
    • Documentation available to aid functional safety system design
  • 2-V, high-impedance input voltage range optimized for isolated voltage measurements
  • Fixed gain: 1.0 V/V
  • Low DC errors:
    • Offset error ±1.5 mV (max)
    • Offset drift: ±10 µV/°C (max)
    • Gain error: ±0.2% (max)
    • Gain drift: ±30 ppm/°C (max)
    • Nonlinearity 0.04% (max)
  • 3.3-V or 5-V operation on high-side and low-side
  • Missing high-side supply detection feature
  • High CMTI: 100 kV/µs (min)
  • ≥15.7-mm creepage, stretched SOIC package
  • Reinforced isolation:
    • 10600-VPK reinforced isolation per DIN VDE V 0884-11: 2017-01
    • 7500-VRMS isolation for 1 minute per UL1577

说明

The AMC1411-Q1 is a precision, isolated amplifier with an output separated from the input circuitry by a capacitive isolation barrier that is highly resistant to magnetic interference. This barrier is certified to provide reinforced galvanic isolation of up to 7.5kVRMS according to VDE V 0884-11 and UL1577 and supports a working voltage of up to 1600 VRMS.

The isolation barrier separates parts of the system that operate on different common-mode voltage levels and protects the low-voltage side from voltages that can cause electrical damage or be harmful to an operator.

The high-impedance input of the AMC1411-Q1 is optimized for connection to high-impedance resistive dividers or other high-impedance voltage signal source. The excellent DC accuracy and low temperature drift support accurate, isolated voltage sensing in onboard chargers (OBC), DC/DC converters, traction inverters, or other applications that must operate at high common-mode voltages, high altitudes, or in environments with high pollution degrees.

The AMC1411-Q1 is offered in a stretched 8-pin SOIC package and is AEC-Q100 qualified for automotive applications and supports the temperature range from –40°C to +125°C.