Datasheet MAX471 (Maxim) - 5
| 制造商 | Maxim |
| 描述 | Precision, High-Side Current-Sense Amplifiers |
| 页数 / 页 | 13 / 5 — Precision, High-Side Current-Sense Amplifiers |
| 文件格式/大小 | PDF / 135 Kb |
| 文件语言 | 英语 |
Precision, High-Side Current-Sense Amplifiers
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Precision, High-Side Current-Sense Amplifiers __________________________________________Typical Operating Characteristics
(Typical Operating Circuit (MAX471) or circuit of Figure 4, RG1 = RG2 = 200Ω, ROUT = 2kΩ (MAX472), TA = +25°C, unless otherwise noted.)
SUPPLY CURRENT vs. SHUTDOWN CURRENT vs. SIGN THRESHOLD vs. SUPPLY VOLTAGE SUPPLY VOLTAGE SUPPLY VOLTAGE
65 2.5 4 TA = -40°C TA = +85°C MAX1471-01 60 MAX1471-02 T MAX1471-03 A = -40°C 3 2.0 µA) 55 2 T µA) 1.5 A = +25°C ( 50 TA = +25°C 1 I SHDN T 1.0 A = +25°C 45 TA = +85°C 0 SUPPLY CURRENT ( SIGN THRESHOLD (mA)
MAX471/MAX472
TA = -40°C 0.5 TA = +85°C 40 -1 35 0 -2 3 6 9 12 15 18 21 24 27 30 33 36 3 6 9 12 15 18 21 24 27 30 33 36 3 6 9 12 15 18 21 24 27 30 33 36 VRS+ (V) VRS+(V) VRS+ (V)
MAX471 MAX471 NO-LOAD OFFSET CURRENT vs. MAX471 POWER-SUPPLY REJECTION RATIO SUPPLY VOLTAGE ERROR vs. LOAD CURRENT vs. FREQUENCY
2.4 15 40 VS+ = VS- ILOAD = 1A 2.2 12 MAX471-05 MAX471-06 35 MAX1471-04 T ILOAD FROM RS- TO RS+ A = -40°C RS+ RS– V = 0V TO 0.5V 2.0 9 30 µA) 6 OUT 1.8 GND A 25 3 5V 1µF 1.6 V = 0V TO 1V T V 5Ω A = +85°C 0 20 1.4 ERROR (%) PSRR (%) T -3 A = +25°C 15 1.2 -6 V = 0mV TO 50mV OFFSET CURRENT ( 10 1.0 -9 ILOAD FROM RS+ TO RS- 0.8 -12 5 0.6 -15 0 3 6 9 12 15 18 21 24 27 30 33 36 0.01 0.10 1 10 0.01 0.10 1 10 100 1000 VRS+ (V) ILOAD (A) POWER-SUPPLY FREQUENCY (kHz)
MAX471 MAX472 RS+ TO RS- RESISTANCE vs. NO-LOAD OUTPUT ERROR vs. MAX472 TEMPERATURE SUPPLY VOLTAGE ERROR vs. SUPPLY VOLTAGE
40 3.0 1.10 VRG1-VRG2 = 60mV, RG1 = RG2 = 0Ω MAX1471-07 RG1 = RG2 = 200 MAX1471-09 Ω 38 MAX1471-08 2.5 ) 1.00 Ω TA = +85°C 36 2.0 TA = +85°C µA) 34 ( 1.5 0.90 I OUT TA = +25°C ERROR (%) T RESISTANCE (m 32 1.0 A = +25°C TA = -40°C 0.80 30 0.5 TA = -40°C 28 0 0.70 -40 -20 0 20 40 60 80 3 6 9 12 15 18 21 24 27 30 33 36 3 6 9 12 15 18 21 24 27 30 33 36 TEMPERATURE (°C) VCC (V) VCC (V)
4 _______________________________________________________________________________________
Document Outline not-recomm-data-sheet-cover.pdf Not Recommended for New Designs
(Typical Operating Circuit (MAX471) or circuit of Figure 4, RG1 = RG2 = 200Ω, ROUT = 2kΩ (MAX472), TA = +25°C, unless otherwise noted.)
SUPPLY CURRENT vs. SHUTDOWN CURRENT vs. SIGN THRESHOLD vs. SUPPLY VOLTAGE SUPPLY VOLTAGE SUPPLY VOLTAGE
65 2.5 4 TA = -40°C TA = +85°C MAX1471-01 60 MAX1471-02 T MAX1471-03 A = -40°C 3 2.0 µA) 55 2 T µA) 1.5 A = +25°C ( 50 TA = +25°C 1 I SHDN T 1.0 A = +25°C 45 TA = +85°C 0 SUPPLY CURRENT ( SIGN THRESHOLD (mA)
MAX471/MAX472
TA = -40°C 0.5 TA = +85°C 40 -1 35 0 -2 3 6 9 12 15 18 21 24 27 30 33 36 3 6 9 12 15 18 21 24 27 30 33 36 3 6 9 12 15 18 21 24 27 30 33 36 VRS+ (V) VRS+(V) VRS+ (V)
MAX471 MAX471 NO-LOAD OFFSET CURRENT vs. MAX471 POWER-SUPPLY REJECTION RATIO SUPPLY VOLTAGE ERROR vs. LOAD CURRENT vs. FREQUENCY
2.4 15 40 VS+ = VS- ILOAD = 1A 2.2 12 MAX471-05 MAX471-06 35 MAX1471-04 T ILOAD FROM RS- TO RS+ A = -40°C RS+ RS– V = 0V TO 0.5V 2.0 9 30 µA) 6 OUT 1.8 GND A 25 3 5V 1µF 1.6 V = 0V TO 1V T V 5Ω A = +85°C 0 20 1.4 ERROR (%) PSRR (%) T -3 A = +25°C 15 1.2 -6 V = 0mV TO 50mV OFFSET CURRENT ( 10 1.0 -9 ILOAD FROM RS+ TO RS- 0.8 -12 5 0.6 -15 0 3 6 9 12 15 18 21 24 27 30 33 36 0.01 0.10 1 10 0.01 0.10 1 10 100 1000 VRS+ (V) ILOAD (A) POWER-SUPPLY FREQUENCY (kHz)
MAX471 MAX472 RS+ TO RS- RESISTANCE vs. NO-LOAD OUTPUT ERROR vs. MAX472 TEMPERATURE SUPPLY VOLTAGE ERROR vs. SUPPLY VOLTAGE
40 3.0 1.10 VRG1-VRG2 = 60mV, RG1 = RG2 = 0Ω MAX1471-07 RG1 = RG2 = 200 MAX1471-09 Ω 38 MAX1471-08 2.5 ) 1.00 Ω TA = +85°C 36 2.0 TA = +85°C µA) 34 ( 1.5 0.90 I OUT TA = +25°C ERROR (%) T RESISTANCE (m 32 1.0 A = +25°C TA = -40°C 0.80 30 0.5 TA = -40°C 28 0 0.70 -40 -20 0 20 40 60 80 3 6 9 12 15 18 21 24 27 30 33 36 3 6 9 12 15 18 21 24 27 30 33 36 TEMPERATURE (°C) VCC (V) VCC (V)
4 _______________________________________________________________________________________
Document Outline not-recomm-data-sheet-cover.pdf Not Recommended for New Designs