LT6106HS5#PBF Analog Devices

LT6106 36V Low Cost High Side Current Sense in a SOT-23 FEATURES DESCRIPTION n Gain Configurable with Two Resistors The LT 6106 is a versatile high side current sense ampli- n Low Offset Voltage: 250V Maximum fier. Design flexibility is provided by the excellent device n Output Current: 1mA Maximum characteristics: 250V maximum offset and 40nA maxi- n Supply Range: 2.7V to 36V, 44V Absolute Maximum mum input bias current. Gain for each device is set by two n Low Input Bias Current: 40nA Maximum resistors and allows for accuracy better than 1%. n PSRR: 106dB Minimum The LT6106 monitors current via the voltage across an + n Low Supply Current: 65A Typical, V = 12V external sense resistor (shunt resistor). Internal circuitry n Operating Temperature Range: 40C to 125C converts input voltage to output current, allowing for a n Low Profile (1mm) ThinSOT Package small sense signal on a high common mode voltage to be translated into a ground referenced signal. The low DC APPLICATIONS offset allows for monitoring very small sense voltages. As a result, a small valued shunt resistor can be used, which n Current Shunt Measurement minimizes the power loss in the shunt. n Battery Monitoring n Power Management The wide 2.7V to 44V input voltage range, high accuracy n Motor Control and wide operating temperature range make the LT6106 n Lamp Monitoring ideal for automotive, industrial and power management n Overcurrent and Fault Detection applications. The very low power supply current of the LT6106 also makes it suitable for low power and battery operated applications. L, LT, LTC, LTM, Linear Technology and the Linear logo are registered trademarks and ThinSOT is a trademark of Linear Technology Corporation. All other trademarks are the property of their respective owners. TYPICAL APPLICATION 3V to 36V, 5A Current Sense with A = 10 Measurement Accuracy vs Load Current V 3V TO 36V 0.6 LIMIT OVER TEMPERATURE 0.4 0.2 100 0.02 0 TYPICAL PART AT T = 25C A +IN IN 0.2 + 0.4 LOAD LIMIT OVER TEMPERATURE + V V 0.6 0.8 5A FULL SCALE R = 100 IN 1.0 R = 0.02 R = 1k SENSE OUT + A = 10 V = 3V V 1.2 OUT V OUT 0 4 5 1 2 3 LT6106 200mV/A LOAD CURRENT (A) 1k 6106 TA01b 6106 TA01a 6106fb 1 For more information www.linear.com/LT6106 ACCURACY (% OF FULL SCALE)LT6106 ABSOLUTE MAXIMUM RATINGS PIN CONFIGURATION (Note 1) + Supply Voltage (V to V ) ..........................................44V TOP VIEW + Input Voltage (+IN to V ) ............................................. V + OUT 1 5 V + (IN to V ) ............................................ V V 2 Input Current ........................................................10mA IN 3 4 +IN Output Short-Circuit Duration .......................... Indefinite S5 PACKAGE 5-LEAD PLASTIC TSOT-23 Operating Temperature Range (Note 4) T = 150C, = 250C/W JMAX JA LT6106C/LT6106I .................................40C to 85C LT6106H ............................................ 40C to 125C Specified Temperature Range (Note 4) LT6106C .................................................. 0C to 70C LT6106I ................................................40C to 85C LT6106H ............................................ 40C to 125C Storage Temperature Range .................. 65C to 150C Lead Temperature (Soldering, 10 sec) ...................300C ORDER INFORMATION (