- 制造厂商:AD
- 产品类别:电源监控器
- 技术类目:电源监控器
- 功能描述:具集成型检测电阻器的 30A 功率 / 能量监视器
- (AD代理渠道,提供当日发货、严格的质量标准,满足您的目标价格)
LTC2947 是一款具有一个内部检测电阻器的高精度功率和能量监视器,可支持高达 ±30A的电流。三个内部无延迟增量累加 (No Latency ΔΣ) ADC 确保了准确的电压和电流测量,而电压和电流的高带宽模拟乘法运算在众多应用中提供了准确的功率测量。内部或外部时钟选项可实现精准的电荷和能量测量。
一个内部300μΩ、温度补偿型检测电阻器较大限度地减少了效率损失和外部组件,从而简化了能量测量应用,同时在整个温度范围内实现了高准确度电流测量。
所有的测定量被存储在可通过可选的 I2C / SPI 接口访问的内部寄存器中。LTC2947 具有用于所有测定量的可编程高门限和低门限,以减少与主机的数字通信量。
应用
- 服务器
- 电信基础设施
- 工业
- 电动汽车
- 太阳能光伏
- 可测量电流、电压、功率、电荷、能量
- ±30A 电流范围 (具有 9mA 的低偏移)
- 集成的 300μΩ 检测电阻器
- 0V 至 15V 输入范围 (与电源电压无关)
- 电压和电流的瞬时乘法运算
- 0.5% 电压测量准确度
- 1% 电流和电荷测量准确度
- 1.2% 功率和能量测量准确度
- 当门限被超过时可发出提示信号
- 可存储最大值和最小值
- 具 IQ < 10μA 的停机模式
- I2C / SPI 兼容型接口
- 采用 32 引脚 4mm x 6mm QFN 封装
LTC2947IUFE#PBF,封装:32-Lead QFN (4mm x 6mm x 0.75mm w/ EP),包装形式及数量:管装,61,工作温度:-40 to 85C,AD官网报价:8.02(100-499个);6.61(1000+个)
LTC2947IUFE#TRPBF,封装:32-Lead QFN (4mm x 6mm x 0.75mm w/ EP),包装形式及数量:卷带,2500,工作温度:-40 to 85C,AD官网报价:8.02(100-499个);6.61(1000+个)
DC2334A:LTC2947 Demo Board | 30A Energy Monitor with Integrated RSENSE (Requires DC590 or DC2026)
Demonstration circuit 2334A features the LTC2947, a high precision power and energy meter with an internal 30A sense resistor. Three internal ΔΣ ADCs ensure accurate measurement of voltage (0V to 15V) and current (–30A to 30A), while high bandwidth analog multiplication of voltage and current provides accurate power measurement (–450W to 450W) in a wide range of applications. Internal or external clocking options enable precise charge and energy measurements.
DC2574A-KIT:LTC2947 Standalone Demo Kit | LTC2947 Demo Board (DC2334) + Linduino (DC2026) + LCD Keypad Shield
The DC2574A-KIT is a standalone power/energy monitor that allows users to evaluate the LTC2947 power/energy monitor without a PC. This document describes how to quickly set up and operate the DC2574A-KIT; users should also refer to the DC2334 demo manual and LTC2947 data sheet for more details. The DC2574A-KIT includes all components required for stand-alone operation except for a power supply and load. The DC2574A-KIT operates with any USB compatible power supply and any load compatible with the LTC2947.