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

应用

Current Shunt Measurement
Battery Monitoring
Remote Sensing
Power Management

典型应用图

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

数据手册(英文) : LTC6104 - High Voltage, High Side, Bi-Directional Current Sense Amplifier.PDF
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
可靠性数据 : R503 Reliability Data .PDF
产品选型卡 : Precision High Side Current Sense Amplifiers.PDF
LT Journal : Dec 2006 - Precise Current Sense Amplifiers Operate from 4V to 60V.PDF