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Moteur de recherche de fiches techniques de composants électroniques |
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Moteur de recherche de fiches techniques de composants électroniques |
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LT2940CMS Fiches technique(PDF) 4 Page - Linear Technology |
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LT2940CMS Fiches technique(HTML) 4 Page - Linear Technology |
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4 / 24 page  LT2940 4 2940f SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS VPMON Power Monitor Output Compliance Voltage VCC ≤ 12V, IPMON ≥ 0μA l 0VCC – 4.5 V 12V < VCC < 30V, IPMON ≥ 0μA l 0 7.5 V VCC ≥ 30V, IPMON ≥ 0μA l 012 V VCC ≤ 12V, IPMON < 0μA l 0.5 VCC – 4.5 V 12V < VCC < 30V, IPMON < 0μA l 0.5 7.5 V VCC ≥ 30V, IPMON < 0μA l 0.5 12 V EPMON Power Monitor Output Total Error (Note 4) |VV • VI| ≤ 0.4V2 ±2 ±5 %FS |VV • VI| ≤ 0.4V2, 25°C < TA ≤ 85°C ±2.5 ±7 %FS |VV • VI| ≤ 0.4V2, LT2940C l ±2.5 ±9 %FS |VV • VI| ≤ 0.4V2, LT2940I l ±3.5 ±12 %FS Quadrants I and III of Shaded Region in Figure 4 l ±5 ±15 %FS KPMON Power Monitor Scaling Coefficient IPMON = KPMON • VV • VI |VV • VI| = 0.4V2 l 485 500 515 μA /V2 VV(OSP) Power Monitor Voltage Sense Input-Referred Offset Voltage VV = 0V l ±40 ±100 mV VI(OSP) Power Monitor Current Sense Input-Referred Offset Voltage VI = 0mV l ±2 ±6 mV IPMON(OS) Power Monitor Output Offset Current VV– = 0V, VI = 0mV l ±6 ±15 μA BWPMON Power Monitor Output Bandwidth RPMON = 2k 0.5 MHz Current Monitor (Note 2) IIMON(FS) Current Monitor Output Current Operating Range l ±200 μA VIMON Current Monitor Output Compliance Voltage VCC ≤ 12V, IIMON ≥ 0μA l 0VCC – 4.5 V 12V < VCC < 30V, IIMON ≥ 0μA l 0 7.5 V VCC ≥ 30V, IIMON ≥ 0μA l 012 V VCC ≤ 12V, IIMON < 0μA l 0.5 VCC – 4.5 V 12V < VCC < 30V, IPMON < 0μA l 0.5 7.5 V VCC ≥ 30V, IPMON < 0μA l 0.5 12 V EIMON Current Monitor Output Total Error (Note 4) |VI| ≤ 200mV, 25°C ≤ TA ≤ 85°C ±1.5 ±3 %FS |VI| ≤ 200mV, LT2940C l ±2 ±3.5 %FS |VI| ≤ 200mV, LT2940I l ±2 ±4 %FS 200mV < |VI| ≤ 225mV l ±2.5 ±5 %FS GIMON Current Monitor Scaling, IIMON = GIMON • VI VI = ±200mV l 975 1000 1025 μA /V VI(OSI) Current Monitor Current Sense Input-Referred Offset Voltage l ±2.5 ±7 mV BWIMON Current Monitor Output Bandwidth RIMON = 2k 1 MHz Comparator VCMP(TH) Comparator Threshold Voltage CMP+ Rising l 1.222 1.240 1.258 V ΔVCMP(HYST) Comparator Threshold Hysteresis CMP+ Falling l –15 –35 –60 mV ICMP(BIAS) Comparator Input Bias Current 1V ≤ VCMP+ ≤ 1.5V l ±100 ±300 nA ICMPOUT(OL) CMPOUT Output Low Voltage CMP+ High, ICMPOUT = 3mA l 0.2 0.4 V ELECTRICAL CHARACTERISTICS The l denotes the specifications which apply over the full operating temperature range, otherwise specifications are at TA = 25°C. All specifications apply at 6V ≤ VCC ≤ 80V, unless otherwise specified. |
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