Datasheet LTC3874 (Analog Devices) - 6
| 制造商 | Analog Devices |
| 描述 | PolyPhase Step-Down Synchronous Slave Controller with Sub-Milliohm DCR Sensing |
| 页数 / 页 | 30 / 6 — TYPICAL PERFORMANCE CHARACTERISTICS (TA = 25°C unless otherwise … |
| 文件格式/大小 | PDF / 919 Kb |
| 文件语言 | 英语 |
TYPICAL PERFORMANCE CHARACTERISTICS (TA = 25°C unless otherwise specified). Quiescent Current. Current Sense Threshold
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LTC3874
TYPICAL PERFORMANCE CHARACTERISTICS (TA = 25°C unless otherwise specified) Quiescent Current Current Sense Threshold vs Temperature without EXTVCC INTVCC Line Regulation vs ITH Voltage
6 6 100 LOWDCR = L, RANGE = H 80 5 5 60 LOWDCR = L, 4 4 RANGE = L TAGE (V) (mV) 40 3 3 VOL 20 V CC V ISENSE 2 2 LOWDCR = H, INT 0 RANGE = L QUIESCENT CURRENT (mA) 1 LOWDCR = H, 1 –20 RANGE = H 0 0 –40 –50 –5 45 95 125 0 5 10 15 20 25 30 35 40 0 0.5 1 1.5 2 2.5 3 TEMPERATURE (°C) VIN (V) VITH (V) 3874 G07 3874 G08 3874 G09
Maximum Current Sense Threshold vs Common Mode Voltage (LOWDCR = INTVCC, Undervoltage Lockout Threshold Quiescent Current VITH = 2.18V) (INTVCC) vs Temperature vs Input Voltage without EXTVCC
30 4.1 5.5 I 5.3 LIM = INTVCC 3.9 RISING 25 5.1 3.7 4.9 20 3.5 4.7 FALLING 15 3.3 4.5 ILIM = GND 4.3 3.1 10 4.1 UVLO THRESHOLD (V) 2.9 SUPPLY CURRENT (mA) 3.9 CURRENT SENSE THRESHOLD (mV) 5 2.7 3.7 0 2.5 3.5 0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 –50 –5 45 95 125 5 10 15 20 25 30 35 40 V TEMPERATURE (°C) VIN (V) ISENSE COMMON MODE VOLTAGE (V) 3874 G12 3874 G14 3874 G10 3874fb 6 For more information www.linear.com/LTC3874 Document Outline Features Applications Description Typical Application Absolute Maximum Ratings Pin Configuration Order Information Electrical Characteristics Typical Performance Characteristics Pin Functions Functional Block Diagram Operation Applications Information Package Description Typical Application Related Parts Features Applications Typical Application Description Absolute Maximum Ratings Order Information Pin Configuration Electrical Characteristics Typical Performance Characteristics Pin Functions Functional Block Diagram Operation Applications Information Package Description Revision History Typical Application Related Parts
TYPICAL PERFORMANCE CHARACTERISTICS (TA = 25°C unless otherwise specified) Quiescent Current Current Sense Threshold vs Temperature without EXTVCC INTVCC Line Regulation vs ITH Voltage
6 6 100 LOWDCR = L, RANGE = H 80 5 5 60 LOWDCR = L, 4 4 RANGE = L TAGE (V) (mV) 40 3 3 VOL 20 V CC V ISENSE 2 2 LOWDCR = H, INT 0 RANGE = L QUIESCENT CURRENT (mA) 1 LOWDCR = H, 1 –20 RANGE = H 0 0 –40 –50 –5 45 95 125 0 5 10 15 20 25 30 35 40 0 0.5 1 1.5 2 2.5 3 TEMPERATURE (°C) VIN (V) VITH (V) 3874 G07 3874 G08 3874 G09
Maximum Current Sense Threshold vs Common Mode Voltage (LOWDCR = INTVCC, Undervoltage Lockout Threshold Quiescent Current VITH = 2.18V) (INTVCC) vs Temperature vs Input Voltage without EXTVCC
30 4.1 5.5 I 5.3 LIM = INTVCC 3.9 RISING 25 5.1 3.7 4.9 20 3.5 4.7 FALLING 15 3.3 4.5 ILIM = GND 4.3 3.1 10 4.1 UVLO THRESHOLD (V) 2.9 SUPPLY CURRENT (mA) 3.9 CURRENT SENSE THRESHOLD (mV) 5 2.7 3.7 0 2.5 3.5 0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 –50 –5 45 95 125 5 10 15 20 25 30 35 40 V TEMPERATURE (°C) VIN (V) ISENSE COMMON MODE VOLTAGE (V) 3874 G12 3874 G14 3874 G10 3874fb 6 For more information www.linear.com/LTC3874 Document Outline Features Applications Description Typical Application Absolute Maximum Ratings Pin Configuration Order Information Electrical Characteristics Typical Performance Characteristics Pin Functions Functional Block Diagram Operation Applications Information Package Description Typical Application Related Parts Features Applications Typical Application Description Absolute Maximum Ratings Order Information Pin Configuration Electrical Characteristics Typical Performance Characteristics Pin Functions Functional Block Diagram Operation Applications Information Package Description Revision History Typical Application Related Parts