LTC6104 High Voltage, High Side, Bi-Directional Current Sense Amplifier

The LTC6104 is a versatile, high voltage, high side, bidirectional current sense amplifier. Design flexibility is provided by the excellent device characteristics: ±450µV maximum offset and only 520µA of current consumption (typical at 12V). The LTC6104 operates on supplies from 4V to 60V.

The LTC6104 monitors bi-directional current via the voltage across an external sense resistor (shunt resistor). This sense voltage is then translated into a ground referenced signal. Gain is set with three external resistors and can be separately configured for both directions. Low DC offset allows the use of a small shunt resistor and large gain-setting resistors. As a result, power loss in the shunt is minimal.

The wide operating supply range and high accuracy make the LTC6104 ideal for a wide variety of automotive, industrial and power management applications. A maximum input sense voltage of 500mV allows a wide range of currents to be monitored. The fast response makes the LTC6104 the perfect choice for load current warnings and shutoff protection control. With very low supply current, the LTC6104 is suitable for power sensitive applications.

The LTC6104 is available in an 8-lead MSOP package

产品特点 Features
  • Wide Supply Range: 4V to 60V with 70V Absolute Maximum
  • Low Offset Voltage: ±450µV Maximum
  • Fast Response: 1µs Response Time
  • Gain Configurable with External Resistors; Each Direction is Gain Configurable
  • Low Input Bias Current: 170nA Maximum
  • PSRR: 110dB Minimum
  • Output Current: ±1mA Maximum
  • Low Supply Current: 520µA, VS = 12V
  • Specified for –40°C to 125°C Temperature Range
  • Available in an 8-Lead MSOP Package
封装
LTC6104 封装
应用
  • Current Shunt Measurement
  • Battery Monitoring
  • Remote Sensing
  • Power Management
典型应用图
LTC6104 典型应用
参数
LTC6104 参数
LTC6104 订购信息和价格参考Package Variations and Pricing
器件型号 封装 引脚 温度 价格 (以 1 ~ 99 片为批量) 价格 (以 1000 片为批量) *
LTC6104CMS8#PBF MSOP 8 C $2.38  $1.66 
LTC6104CMS8#TRPBF MSOP 8 C $1.72 
LTC6104HMS8#PBF MSOP 8 H $3.09  $2.16 
LTC6104HMS8#TRPBF MSOP 8 H $3.15  $2.22 
LTC6104IMS8#PBF MSOP 8 I $2.73  $1.91 
LTC6104IMS8#TRPBF MSOP 8 I $1.97 
LTC6104 数据手册及相关资料下载
  1. 数据手册(英文) : LTC6104 - High Voltage, High Side, Bi-Directional Current Sense Amplifier.PDF
  2. 设计要点 (中文) : DN407 - 双通道电流检测放大器简化了 H 桥负载监视.PDF
  3. 可靠性数据 : R503 Reliability Data .PDF
  4. 产品选型卡 : Precision High Side Current Sense Amplifiers.PDF
  5. LT Journal : Dec 2006 - Precise Current Sense Amplifiers Operate from 4V to 60V.PDF