Datasheet LT3796, LT3796-1 (Analog Devices) - 8
| 制造商 | Analog Devices |
| 描述 | 100V Constant-Current and Constant-Voltage Controller with Dual Current Sense |
| 页数 / 页 | 36 / 8 — Typical perForMance characTerisTics TA = 25°C, unless otherwise noted. … |
| 文件格式/大小 | PDF / 522 Kb |
| 文件语言 | 英语 |
Typical perForMance characTerisTics TA = 25°C, unless otherwise noted. SENSE Current Limit Threshold vs
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LT3796/LT3796-1
Typical perForMance characTerisTics TA = 25°C, unless otherwise noted. SENSE Current Limit Threshold vs INTVCC Current Limit Duty Cycle INTVCC Current Limit vs VIN vs Temperature
120 120 100 VIN = 24V 100 90 115 80 80 110 60 VIN = 48V 70 CURRENT LIMIT (mA) 40 CURRENT LIMIT (mA) CC CC SENSE THRESHOLD (mV) 105 INTV INTV 60 20 100 0 50 0 20 40 60 80 100 0 20 40 60 80 100 –50 –25 0 25 50 75 100 125 150 DUTY CYCLE (%) VIN (V) TEMPERATURE (°C) 37961 G17 37961 G18 37961 G19
INTVCC Dropout Voltage vs INTVCC vs VIN Current, Temperature INTVCC vs Temperature
9 1800 8.0 VIN = 6V 8 1600 150°C 7.9 7 1400 125°C 7.8 6 1200 75°C (V) 5 1000 (V) 7.7 CC 25°C CC 4 INTV 800 DROPOUT (mV) 7.6 0°C INTV 3 CC 600 INTV 7.5 2 400 1 200 7.4 –40°C –55°C 0 0 7.3 0 20 40 60 80 100 0 5 10 15 20 –50 –25 0 25 50 75 100 125 150 VIN (V) INTVCC LOAD (mA) TEMPERATURE (°C) 37961 G20 37961 G21 37961 G22
V(CSP-CSN) Offset Voltage with V(CSP-CSN) Offset Voltage vs Current Sense Amplifier Gain Different ICSOUT vs VS Temperature Error vs Temperature
2 0.6 2.0 1.5 ICSOUT = 100µA 1 ICSOUT = 100µA 0.4 1.0 I I CSOUT = 10µA CSOUT = 50µA ICSOUT = 100µA 0.5 (mV) (mV) 0 0.2 I I CSOUT = 50µA 0 CSOUT = 50µA –0.5 V (CSP-CSN) ICSOUT = 10µA V (CSP-CSN) GAIN ERROR (%) –1 0 –1.0 ICSOUT = 10µA –1.5 SEE NOTE 5 FOR TEST SETUP –2 –0.2 –2 0 20 40 60 80 100 –50 –25 0 25 50 75 100 125 150 –50 –25 0 25 50 75 100 125 150 VS (V) TEMPERATURE (°C) TEMPERATURE (°C) 37961 G23 37961 G24 37961 G25 3796fb 8 For more information www.linear.com/3796 Document Outline Features Applications Description Typical Application Absolute Maximum Ratings Pin Configuration Order Information Electrical Characteristics Typical Performance Characteristics Pin Functions Block Diagram Operation Applications Information Typical Applications Package Description Revision History Typical Application Related Parts
Typical perForMance characTerisTics TA = 25°C, unless otherwise noted. SENSE Current Limit Threshold vs INTVCC Current Limit Duty Cycle INTVCC Current Limit vs VIN vs Temperature
120 120 100 VIN = 24V 100 90 115 80 80 110 60 VIN = 48V 70 CURRENT LIMIT (mA) 40 CURRENT LIMIT (mA) CC CC SENSE THRESHOLD (mV) 105 INTV INTV 60 20 100 0 50 0 20 40 60 80 100 0 20 40 60 80 100 –50 –25 0 25 50 75 100 125 150 DUTY CYCLE (%) VIN (V) TEMPERATURE (°C) 37961 G17 37961 G18 37961 G19
INTVCC Dropout Voltage vs INTVCC vs VIN Current, Temperature INTVCC vs Temperature
9 1800 8.0 VIN = 6V 8 1600 150°C 7.9 7 1400 125°C 7.8 6 1200 75°C (V) 5 1000 (V) 7.7 CC 25°C CC 4 INTV 800 DROPOUT (mV) 7.6 0°C INTV 3 CC 600 INTV 7.5 2 400 1 200 7.4 –40°C –55°C 0 0 7.3 0 20 40 60 80 100 0 5 10 15 20 –50 –25 0 25 50 75 100 125 150 VIN (V) INTVCC LOAD (mA) TEMPERATURE (°C) 37961 G20 37961 G21 37961 G22
V(CSP-CSN) Offset Voltage with V(CSP-CSN) Offset Voltage vs Current Sense Amplifier Gain Different ICSOUT vs VS Temperature Error vs Temperature
2 0.6 2.0 1.5 ICSOUT = 100µA 1 ICSOUT = 100µA 0.4 1.0 I I CSOUT = 10µA CSOUT = 50µA ICSOUT = 100µA 0.5 (mV) (mV) 0 0.2 I I CSOUT = 50µA 0 CSOUT = 50µA –0.5 V (CSP-CSN) ICSOUT = 10µA V (CSP-CSN) GAIN ERROR (%) –1 0 –1.0 ICSOUT = 10µA –1.5 SEE NOTE 5 FOR TEST SETUP –2 –0.2 –2 0 20 40 60 80 100 –50 –25 0 25 50 75 100 125 150 –50 –25 0 25 50 75 100 125 150 VS (V) TEMPERATURE (°C) TEMPERATURE (°C) 37961 G23 37961 G24 37961 G25 3796fb 8 For more information www.linear.com/3796 Document Outline Features Applications Description Typical Application Absolute Maximum Ratings Pin Configuration Order Information Electrical Characteristics Typical Performance Characteristics Pin Functions Block Diagram Operation Applications Information Typical Applications Package Description Revision History Typical Application Related Parts