Catalog
Current Sense Amplifier, Reference and Comparator with POR
Key Features
• Current Sense AmplifierFast Step Response: 500nsLow Offset Voltage: 200μV MaximumLow Gain Error: 0.2% Maximum
• Fast Step Response: 500ns
• Low Offset Voltage: 200μV Maximum
• Low Gain Error: 0.2% Maximum
• Internal 400mV Precision Reference
• Internal ComparatorPower-On Reset CapabilityFast Response Time: 500nsTotal Threshold Error: ±1.25% Maximum
• Power-On Reset Capability
• Fast Response Time: 500ns
• Total Threshold Error: ±1.25% Maximum
• Wide Supply Range: 2.7V to 60V
• Supply Current: 450μA
• Specified for –40°C to 125°C Temperature Range
• Available in 8-Lead MSOP and 8-Lead (2mm × 3mm) DFN Packages
Description
AI
The LT6118 is a complete high side current sense device that incorporates a precision current sense amplifier, an integrated voltage reference and a latching comparator. The comparator latch functionality can be enabled or disabled and the comparator can be configured to reset upon power-on. The input and the open-drain output of the comparator are independent from the current sense amplifier. The comparator trip point and amplifier gain are configured with external resistors.The overall propagation delay of the LT6118 is typically only 1.4μs, allowing for quick reaction to overcurrent conditions. The 1MHz bandwidth allows the LT6118 to be used for error detection in critical applications such as motor control. The high threshold accuracy of the comparator, combined with the ability to latch the comparator, ensures the LT6118 can capture high speed events.The LT6118 is fully specified for operation from –40°C to 125°C, making it suitable for industrial and automotive applications. The LT6118 is available in the small 8-lead MSOP and 8-lead DFN packages.ApplicationsOvercurrent and Fault DetectionCurrent Shunt MeasurementBattery MonitoringMotor ControlAutomotive Monitoring and ControlIndustrial Control