LTC1986ES6

Overview

The LTC1986ES6 is a high-performance current sense amplifier manufactured by Linear Technology (now part of Analog Devices). This device is specifically designed for high-side current sensing applications where accurate current monitoring is critical. As a high-side current sensor, the LTC1986ES6 can measure current flow directly from the power supply rail without interfering with the ground path. This makes it particularly valuable in battery-powered systems and power management applications where ground reference points may vary.

Structure and Working Principle

AD SIM 接口 LTC1986ES6#TRMPBF 封装6-TSOT-23 批号21+

深圳市伟能云芯科技有限公司

The LTC1986ES6 operates by amplifying the small voltage drop across an external sense resistor placed in series with the power supply. The device features a precision amplifier with very low input offset voltage to ensure accurate current measurements. The IC includes built-in protection features such as overvoltage protection and reverse-voltage protection. The standard SOT-23-6 package makes it suitable for space-constrained applications while providing adequate thermal performance for most operating conditions.

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Key Features

Key features include a wide input common-mode range of 0V to 36V, making it suitable for various power supply configurations. The device offers a fixed gain of 20V/V, eliminating the need for external gain-setting components. The LTC1986ES6 operates with a low quiescent current of approximately 100μA, minimizing its impact on overall system power consumption. Its high accuracy (typically ±1.5% gain error) makes it suitable for precision current monitoring applications in industrial and automotive systems.

Application Areas

Primary applications include battery management systems, where monitoring charge and discharge currents is critical. The device is also widely used in power supply current monitoring, motor control systems, and industrial process control. In automotive electronics, the LTC1986ES6 finds use in monitoring currents for various subsystems, benefiting from its robust design and wide operating temperature range. Telecommunications equipment manufacturers utilize it for power amplifier current monitoring in base stations and network infrastructure.

Maintenance and Precautions

LTC1986ES6 电子元器件 LINEAR/凌特封装SOT23-6 批次真实库存

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When implementing the LTC1986ES6, proper PCB layout is crucial for maintaining measurement accuracy. The sense resistor connections should be routed as a Kelvin connection directly to the device pins to minimize parasitic resistance effects. Thermal considerations are important when operating at high currents, as the sense resistor may dissipate significant power. The device itself should be placed away from heat sources on the PCB to prevent temperature-induced measurement errors. Electrical isolation may be required when monitoring high-voltage rails.

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B2B Procurement Guide

For B2B buyers, the LTC1986ES6 is typically available through authorized distributors of Analog Devices products. Minimum order quantities vary by distributor but often start at 100 pieces for commercial purchases. When procuring this component, verify the authenticity through official channels, as counterfeit semiconductor devices are a known industry issue. Consider lead times, especially for automotive-grade versions which may have longer procurement cycles. Volume pricing breaks are typically available for orders exceeding 1,000 units.