Datasheet LT3922 (Analog Devices) - 5
| 制造商 | Analog Devices |
| 描述 | 36V, 2A Synchronous Step-Up LED Driver |
| 页数 / 页 | 32 / 5 — Typical perForMance characTerisTics VIN = 12V, TA = 25°C, unless … |
| 文件格式/大小 | PDF / 2.5 Mb |
| 文件语言 | 英语 |
Typical perForMance characTerisTics VIN = 12V, TA = 25°C, unless otherwise noted. EN/UVLO Thresholds. EN/UVLO Pin Current
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LT3922
Typical perForMance characTerisTics VIN = 12V, TA = 25°C, unless otherwise noted. EN/UVLO Thresholds EN/UVLO Pin Current OVLO Threshold
1.50 3.00 1.35 RISING VEN/UVLO = 1.2V RISING FALLING 1.45 2.50 FALLING 1.30 1.40 2.00 1.25 1.35 1.50 1.20 1.30 1.00 1.15 EN/UVLO THRESHOLD (V) OVLO THRESHOLD (V) EN/UVLO PIN CURRENT (µA) 1.25 0.50 1.10 1.20 0 1.05 –45 –20 5 30 55 80 105 130 155 –45 –20 5 30 55 80 105 130 155 –45 –20 5 30 55 80 105 130 155 TEMPERATURE (°C) TEMPERATURE (°C) TEMPERATURE (°C) 3922 G01 3922 G02 3922 G03
VIN Shutdown Current VIN Quiescent Current INTVCC Voltage
2.50 3.60 3.2 VIN = 36V VIN = 36V VIN = 36V VIN = 12V 3.40 VIN = 12V 3.1 VIN = 12V VIN = 2.7V 2.00 VIN = 2.7V VIN = 2.7V 3.20 3.0 1.50 3.00 2.9 TAGE (V) 2.80 VOL 1.00 2.8 2.60 V CC INT 2.7 SHUTDOWN CURRENT (µA) QUIESCENT CURRENT (mA) 2.40 0.50 V IN V IN 2.20 2.6 0 2.00 2.5 –45 –20 5 30 55 80 105 130 155 –45 –20 5 30 55 80 105 130 155 –50 –25 0 25 50 75 100 125 150 TEMPERATURE (°C) TEMPERATURE (°C) TEMPERATURE (°C) 3922 G04 3922 G05 3922 G06
INTVCC Load Regulation VREF Voltage VREF Load Regulation
3.10 2.02 2.02 3.05 2.01 2.01 3.00 2.00 2.00 TAGE (V) 2.95 TAGE (V) TAGE (V) VOL VOL VOL V CC 1.99 1.99 2.90 INT V REF V REF –40°C –40°C 1.98 1.98 2.85 25°C 25°C 125°C 125°C 150°C 150°C 2.80 1.97 1.97 0 2 4 6 8 10 12 –50 –25 0 25 50 75 100 125 150 0 200 400 600 800 1000 INTVCC LOAD CURRENT (mA) TEMPERATURE (°C) VREF LOAD CURRENT (µA) 3922 G07 3922 G08 3922 G09 3922fa For more information www.linear.com/LT3922 5 Document Outline Features Description Applications 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 VIN = 12V, TA = 25°C, unless otherwise noted. EN/UVLO Thresholds EN/UVLO Pin Current OVLO Threshold
1.50 3.00 1.35 RISING VEN/UVLO = 1.2V RISING FALLING 1.45 2.50 FALLING 1.30 1.40 2.00 1.25 1.35 1.50 1.20 1.30 1.00 1.15 EN/UVLO THRESHOLD (V) OVLO THRESHOLD (V) EN/UVLO PIN CURRENT (µA) 1.25 0.50 1.10 1.20 0 1.05 –45 –20 5 30 55 80 105 130 155 –45 –20 5 30 55 80 105 130 155 –45 –20 5 30 55 80 105 130 155 TEMPERATURE (°C) TEMPERATURE (°C) TEMPERATURE (°C) 3922 G01 3922 G02 3922 G03
VIN Shutdown Current VIN Quiescent Current INTVCC Voltage
2.50 3.60 3.2 VIN = 36V VIN = 36V VIN = 36V VIN = 12V 3.40 VIN = 12V 3.1 VIN = 12V VIN = 2.7V 2.00 VIN = 2.7V VIN = 2.7V 3.20 3.0 1.50 3.00 2.9 TAGE (V) 2.80 VOL 1.00 2.8 2.60 V CC INT 2.7 SHUTDOWN CURRENT (µA) QUIESCENT CURRENT (mA) 2.40 0.50 V IN V IN 2.20 2.6 0 2.00 2.5 –45 –20 5 30 55 80 105 130 155 –45 –20 5 30 55 80 105 130 155 –50 –25 0 25 50 75 100 125 150 TEMPERATURE (°C) TEMPERATURE (°C) TEMPERATURE (°C) 3922 G04 3922 G05 3922 G06
INTVCC Load Regulation VREF Voltage VREF Load Regulation
3.10 2.02 2.02 3.05 2.01 2.01 3.00 2.00 2.00 TAGE (V) 2.95 TAGE (V) TAGE (V) VOL VOL VOL V CC 1.99 1.99 2.90 INT V REF V REF –40°C –40°C 1.98 1.98 2.85 25°C 25°C 125°C 125°C 150°C 150°C 2.80 1.97 1.97 0 2 4 6 8 10 12 –50 –25 0 25 50 75 100 125 150 0 200 400 600 800 1000 INTVCC LOAD CURRENT (mA) TEMPERATURE (°C) VREF LOAD CURRENT (µA) 3922 G07 3922 G08 3922 G09 3922fa For more information www.linear.com/LT3922 5 Document Outline Features Description Applications 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