Datasheet LT6107 (Analog Devices)
| Fabricante | Analog Devices |
| Descripción | High Temperature High Side Current Sense Amp in SOT-23 |
| Páginas / Página | 14 / 1 — Fully Tested at –55°C (MP), –40°C (H),. 25°C and 150°C. Gain Configurable … |
| Formato / tamaño de archivo | PDF / 349 Kb |
| Idioma del documento | Inglés |
Fully Tested at –55°C (MP), –40°C (H),. 25°C and 150°C. Gain Configurable with Two Resistors
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LT6107 High Temperature High Side Current Sense Amp in SOT-23 FEATURES DESCRIPTION n
Fully Tested at –55°C (MP), –40°C (H),
The LT®6107 is a versatile high side current sense ampli-
25°C and 150°C
fier designed for operation over a wide temperature range. n
Gain Configurable with Two Resistors
Design flexibility is provided by the excellent device char- n
Low Offset Voltage: 250µV Maximum
acteristics: 250µV maximum offset and 40nA maximum n
Output Current: 1mA Maximum
input bias current. Gain for each device is set by two n
Supply Range: 2.7V to 36V, 44V Absolute Maximum
resistors and allows for accuracy better than 1%. n Low Input Bias Current: 40nA Maximum The LT6107 monitors current via the voltage across an n PSRR: 106dB Minimum external sense resistor (shunt resistor). Internal circuitry n Low Supply Current: 65µA Typical, V+ = 12V converts input voltage to output current, allowing for a n Low Profile (1mm) ThinSOTTM Package small sense signal on a high common mode voltage to be translated into a ground referenced signal. The low DC APPLICATIONS offset al ows for monitoring very smal 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 LT6107 n Lamp Monitoring ideal for automotive, industrial and power management n Overcurrent and Fault Detection applications. The very low power supply current of the LT6107 also makes it suitable for low power and battery All registered trademarks and trademarks are the property of their respective owners. operated applications. For applications not requiring the wide temperature range, see the LT6106. TYPICAL APPLICATION
3V to 36V, 5A Current Sense with AV = 10 Measurement Accuracy vs Load Current
3V TO 36V 0.6 0.4 0.2 100Ω 0.02Ω 0 TYPICAL PART, TA = 25°C +IN –IN + – –0.2 LOAD –0.4 V+ V– –0.6 –0.8 5A FULL SCALE ACCURACY (% OF FULL SCALE) RSENSE = 0.02 –1.0 AV = 10 ROUT = 1k RIN = 100 V+ = 3V OUT V –1.2 LT6107 OUT 200mV/A 0 1 2 3 4 5 1k LOAD CURRENT (A) 6107 TA01b 6107 TA01a 6107fc For more information www.linear.com/LT6107 1
Fully Tested at –55°C (MP), –40°C (H),
The LT®6107 is a versatile high side current sense ampli-
25°C and 150°C
fier designed for operation over a wide temperature range. n
Gain Configurable with Two Resistors
Design flexibility is provided by the excellent device char- n
Low Offset Voltage: 250µV Maximum
acteristics: 250µV maximum offset and 40nA maximum n
Output Current: 1mA Maximum
input bias current. Gain for each device is set by two n
Supply Range: 2.7V to 36V, 44V Absolute Maximum
resistors and allows for accuracy better than 1%. n Low Input Bias Current: 40nA Maximum The LT6107 monitors current via the voltage across an n PSRR: 106dB Minimum external sense resistor (shunt resistor). Internal circuitry n Low Supply Current: 65µA Typical, V+ = 12V converts input voltage to output current, allowing for a n Low Profile (1mm) ThinSOTTM Package small sense signal on a high common mode voltage to be translated into a ground referenced signal. The low DC APPLICATIONS offset al ows for monitoring very smal 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 LT6107 n Lamp Monitoring ideal for automotive, industrial and power management n Overcurrent and Fault Detection applications. The very low power supply current of the LT6107 also makes it suitable for low power and battery All registered trademarks and trademarks are the property of their respective owners. operated applications. For applications not requiring the wide temperature range, see the LT6106. TYPICAL APPLICATION
3V to 36V, 5A Current Sense with AV = 10 Measurement Accuracy vs Load Current
3V TO 36V 0.6 0.4 0.2 100Ω 0.02Ω 0 TYPICAL PART, TA = 25°C +IN –IN + – –0.2 LOAD –0.4 V+ V– –0.6 –0.8 5A FULL SCALE ACCURACY (% OF FULL SCALE) RSENSE = 0.02 –1.0 AV = 10 ROUT = 1k RIN = 100 V+ = 3V OUT V –1.2 LT6107 OUT 200mV/A 0 1 2 3 4 5 1k LOAD CURRENT (A) 6107 TA01b 6107 TA01a 6107fc For more information www.linear.com/LT6107 1