LTC6102CDD-TR

LTC6102/LTC6102HV Precision Zero Drift Current Sense Amplifier FEATURES n DESCRIPTION The LTC®6102/LTC6102HV are versatile, high voltage, high-side current sense amplifiers. Their high supply voltage rating allows their use in almost any application, while the low drift and offset ensure accuracy across a wide range of operating conditions. The LTC6102/LTC6102HV monitor current via the voltage across an external sense resistor (shunt resistor). Internal circuitry converts input voltage to output current, allowing a small sense signal on a large common mode voltage to be translated to a ground-referred signal. Low DC offset allows the use of very low shunt resistor values and large gain-setting resistors. As a result, power loss in the shunt is reduced. The wide operating supply and high accuracy make the LTC6102/LTC6102HV ideal for a large array of applications from automotive to industrial and power management. A maximum input sense voltage of 2V allows a wide range of currents and voltages to be monitored. Fast response makes the LTC6102/LTC6102HV the perfect choice for load current warnings and shutoff protection control. The LTC6102/LTC6102HV are available in 8-lead MSOP and 3mm × 3mm DFN packages. n n n n n n n n n Supply Range: 4V to 60V, 70V Absolute Maximum (LTC6102) 5V to 100V, 105V Absolute Maximum (LTC6102HV) ±10μV Input Offset Maximum ±50nV/°C Input Offset Drift Maximum Fast Response: 1μs Step Response Gain Configurable with Two Resistors Low Input Bias Current: 3nA Maximum PSRR 130dB Minimum Output Currents up to 1mA Operating Temperature Range: –40°C to 125°C Available in 8-Lead MSOP and 3mm × 3mm DFN Packages APPLICATIONS n n n n n n n Current Shunt Measurement Battery Monitoring Remote Sensing Power Management Load Protection Motor Control Automotive Controls L, LT, LTC and LTM are registered trademarks of Linear Technology Corporation. All other trademarks are the property of their respective owners. TYPICAL APPLICATION 10A Current Sense with 10mA Resolution and 100mW Maximum Dissipation ILOAD Dynamic Range vs Maximum Power Dissipation in RSENSE at 10A 110 100 90 DYNAMIC RANGE (dB) 80 70 RSENSE = 10μΩ Max VSENSE = 100μV 60 50 40 30 DYNAMIC RANGE RELATIVE TO 10μV MINIMUM VSENSE ISENSE = 10A RSENSE = 100mΩ Max VSENSE = 1V – +IN VSENSE + RIN 20Ω –INS 5V TO 105V 1mΩ* L O A D V– +– –INF V+ VREG VOUT 0.1μF 5V 1μF LTC6102HV OUT ROUT 4.99k LTC2433-1 TO μP 20 0.001 6102 TA01 0.01 0.1 1 MAXIMUM POWER DISSIPATION (W) 10 6102 TA01b VOUT = ROUT • VSENSE = 249.5VSENSE RIN *PROPER SHUNT SELECTION COULD ALLOW MONITORING OF CURRENTS IN EXCESS OF 1000A 6102fb 1 LTC6102/LTC6102HV ABSOLUTE MAXIMUM RATINGS (Note 1) Total Supply Voltage (V+ to V–): LTC6102................................................................70V LTC6102HV .........................................................105V Input Voltage Range (–INF –INS) ............................. (V+ – 4V to V+ + 0.3V) , (+IN) ......................................... (V+ – 20V to V+ + 1V) Output Voltage Range (OUT) ....................................... (V– – 0.3V to V– + 9V) Input Current (–INF –INS) .....................................................±10mA , (+IN) ................................................................–10mA Output Current .......................................(+1mA, –10mA) Output Short Circuit Duration........................... Indefinite Operating Temperature Range: (Note 2) LTC6102C/LTC6102HVC ....................... –40°C to 85°C LTC6102I/LTC6102HVI ......................... –40°C to 85°C LTC6102H/LTC6102HVH .................... –40°C to 125°C Specified Temperature Range: (Note 2) LTC6102C/LTC6102HVC ........................... 0°C to 70°C LTC6102I/LTC6102HVI ......................... –40°C to 85°C LTC6102H/LTC6102HVH .................... –40°C to 125°C Storage Temperature Range................... –65°C to 150°C PIN CONFIGURATION TOP VIEW –INS 1 –INF 2 V– 3 OUT 4 9 8 +IN 7 V+ 6 VREG 5 V– –INS –INF V– OUT 1 2 3 4 TOP VIEW 8 7 6 5 +IN V+ VREG V– DD PACKAGE 8-LEAD (3mm × 3mm) PLASTIC DFN TJMAX = 150°C, θJA = 60°C/W EXPOSED PAD (PIN 9) IS V–, MUST BE SOLDERED TO PCB MS8 PACKAGE 8-LEAD PLASTIC MSOP TJMAX = 150°C, θJA = 300°C/W ORDER INFORMATION LEAD FREE FINISH LTC6102CDD#PBF LTC6102IDD#PBF LTC6102HDD#PBF LTC6102HVCDD#PBF LTC6102HVIDD#PBF LTC6102HVHDD#PBF LTC6102CMS8#PBF LTC6102IMS8#PBF LTC6102HMS8#PBF LTC6102HVCMS8#PBF LTC6102HVIMS8#PBF LTC6102HVHMS8#PBF LEAD BASED FINISH LTC6102CDD LTC6102IDD LTC6102HDD TAPE AND REEL LTC6102CDD#TRPBF LTC6102IDD#TRPBF LTC6102HDD#TRPBF LTC6102HVCDD#TRPBF LTC6102HVIDD#TRPBF LTC6102HVHDD#TRPBF LTC6102CMS8#TRPBF LTC6102IMS8#TRPBF LTC6102HMS8#TRPBF LTC6102HVIMS8#TRPBF TAPE AND REEL LTC6102CDD#TR LTC6102IDD#TR LTC6102HDD#TR PART MARKING* LCKH LCKH LCKH LCVC LCVC LCVC LTCKJ LTCKJ LTCKJ LTCVB PART MARKING LCKH LCKH LCKH PACKAGE DESCRIPTION 8-Lead (3mm × 3mm) Plastic DFN 8-Lead (3mm × 3mm) Plastic DFN 8-Lead (3mm × 3mm) Plastic DFN 8-Lead (3mm × 3mm) Plastic DFN 8-Lead (3mm × 3mm) Plastic DFN 8-Lead (3mm × 3mm) Plastic DFN 8-Lead Plastic MSOP 8-Lead Plastic MSOP 8-Lead Plastic MSOP 8-Lead Plastic MSOP 8-Lead Plastic MSOP 8-Lead Plastic MSOP PACKAGE DESCRIPTION 8-Lead (3mm × 3mm) Plastic DFN 8-Lead (3mm × 3mm) Plastic DFN 8-Lead (3mm × 3mm) Plastic DFN TEMPERATURE RANGE –40°C to 85°C –40°C to 85°C –40°C to 125°C –40°C to 85°C –40°C to 85°C –40°C to 125°C –40°C to 85°C –40°C to 85°C –40°C to 125°C –40°C to 85°C –40°C to 85°C –40°C to 125°C TEMPERATURE RANGE –40°C to 85°C –40°C to 85°C –40°C to 125°C 6102fb LTC6102HVCMS8#TRPBF LTCVB LTC6102HVHMS8#TRPBF LTCVB 2 LTC6102/LTC6102HV ORDER INFORMATION LEAD BASED FINISH LTC6102HVCDD LTC6102HVIDD LTC6102HVHDD LTC6102CMS8 LTC6102IMS8 LTC6102HMS8 LTC6102HVCMS8 LTC6102HVIMS8 LTC6102HVHMS8 TAPE AND REEL LTC6102HVCDD#TR LTC6102HVIDD#TR LTC6102HVHDD#TR LTC6102CMS8#TR LTC6102IMS8#TR LTC6102HMS8#TR LTC6102HVCMS8#TR LTC6102HVIMS8#TR LTC6102HVHMS8#TR PART MARKING LCVC LCVC LCVC LTCKJ LTCKJ LTCKJ LTCVB LTCVB LTCVB PACKAGE DESCRIPTION 8-Lead (3mm × 3mm) Plastic DFN 8-Lead (3mm × 3mm) Plastic DFN 8-Lead (3mm × 3mm) Plastic DFN 8-Lead Plastic MSOP 8-Lead Plastic MSOP 8-Lead Plastic MSOP 8-Lead Plastic MSOP 8-Lead Plastic MSOP 8-Lead Plastic MSOP TEMPERATURE RANGE –40°C to 85°C –40°C to 85°C –40°C to 125°C –40°C to 85°C –40°C to 85°C –40°C to 125°C –40°C to 85°C –40°C to 85°C –40°C to 125°C Consult LTC Marketing for parts specified with wider operating temperature ranges. *The temperature grade is identified by a label on the shipping container. For more information on lead free part marking, go to: http://www.linear.com/leadfree/ For more information on tape and reel specifications, go to: http://www.linear.com/tapeandreel/ (LTC6102) The l denotes the specifications which apply over the full operating temperature range, otherwise specifications are at TA = 25°C. RIN = 10Ω, ROUT = 10k, VSENSE+ = V+ (see Figure 1 for details), V+ = 12V, V– = 0V unless otherwise noted. SYMBOL V+ VOS PARAMETER Supply Voltage Range Input Offset Voltage (Note 3) Input Offset Voltage (Note 4) ΔVOS/ΔT Input Offset Voltage Drift (Note 3) Input Bias Current (Note 5) VSENSE = 100μV 6V ≤ V+ ≤ 60V V+ = 4V 6V ≤ V+ ≤ 60V V+ = 4V VSENSE = 100μV LTC6102C, LTC6102I LTC6102H RIN = 40k, VSENSE = 2mV LTC6102C, LTC6102I LTC6102H VSENSE = 100μV V+ = 6V to 60V V+ = 4V to 60V VSENSE(MAX) Input Sense Voltage Full Scale (V+ – VIN+) VOUT Maximum Output Voltage Error