LT6110HDC#TRMPBF

LT6110 Cable/Wire Drop Compensator Features Description n n n The LT®6110 is a precision high side current sense with a current mode output, designed for controlling the output voltage of an adjustable power supply or voltage regulator. This can be used to compensate for drops in voltage at a remote load due to resistance in a wire, trace or cable. Improve Voltage Regulation to a Remote Load by 10× Ideal for Resistor-Adjustable Voltage Regulators Gain Configurable with a Single Resistor High Side Current Sensing: Integrated 20mΩ Sense Resistor for Up to 3A Ability to Use an External Sense Resistor n 300µV Maximum Input Offset Voltage n Output Current Accuracy of 1% Maximum n 30µA Maximum Supply Current n 2V to 50V Supply Range n Fully Specified from –40°C to 125°C n Available in Low Profile (1mm) ThinSOT™ and (2mm × 2mm) DFN Packages n Applications The LT6110 monitors load current via a series-connected internal or external sense resistor. Two current mode outputs, one sinking and one sourcing, are provided that are proportional to the load current. This allows the LT6110 to adjust the output voltage of a wide variety of regulators. Either output may be used to monitor the load current. Low DC offset allows for the use of a small sense resistor, as well as precise control of small variations in wire voltage drop. L, LT, LTC, LTM, Linear Technology, the Linear logo and µModule are registered trademarks and ThinSOT is a trademark of Linear Technology Corporation. All other trademarks are the property of their respective owners. Automotive and Industrial Power Distribution n USB Power n DC/DC Converters n Plug-In DC Adapters n Power over Ethernet n Typical Application IN OUT REGULATOR RWIRE ILOAD VREG VLOAD RIN FB +IN V+ RS –IN IOUT LT6110 + – VLOAD UNCOMPENSATED 5V 2A IMON V– REMOTE LOAD 5V GND 500mV/DIV VIN 1A VLOAD COMPENSATED 6110 TA01 ILOAD 200µs/DIV 6110fa For more information www.linear.com/LT6110 1 LT6110 Absolute Maximum Ratings (Note 1) Total Supply Voltage (V+ to V–)..................................55V +IN, –IN, IOUT, IMON to V– Voltage............................. V+ +IN, -IN, IOUT, IMON Current..................................10mA IOUT to IMON Voltage.....................................36V, –0.6V V+, +IN to IOUT Voltage..............................................36V Differential Input Voltage............................................. V+ RSENSE Current (Note 2) Continuous..............................................................3A Transient (