Datasheet LT3596 (Analog Devices) - 5
| 制造商 | Analog Devices |
| 描述 | 60V Step-Down LED Driver |
| 页数 / 页 | 22 / 5 — TA = 25°C, unless otherwise noted. VIN Quiescent Current. BIAS Quiescent … |
| 文件格式/大小 | PDF / 2.3 Mb |
| 文件语言 | 英语 |
TA = 25°C, unless otherwise noted. VIN Quiescent Current. BIAS Quiescent Current. VIN, BIAS Shutdown Current. UVLO Threshold
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文件文字版本
LT3596 Typical perForMance characTerisTics
TA = 25°C, unless otherwise noted VIN Quiescent Current BIAS Quiescent Current VIN, BIAS Shutdown Current
2.0 2.0 1.4 VBIAS = 5V VIN = 24V VIN = 55V 1.8 V 1.2 BIAS = 25V 1.6 1.5 1.4 1.0 1.2 1.0 0.8 1.0 0.6 CURRENT (mA) 0.8 0.5 CURRENT (µA) V IN 0.6 BIAS CURRENT (mA) 0.4 0.4 T = 125°C 0 T = 125°C 0.2 0.2 T = 25°C T = 25°C IVBIAS IVIN T = –40°C T = –40°C 0 –0.5 0 0 10 20 30 40 50 60 0 5 10 15 20 25 –50 –25 0 25 50 75 100 125 VIN VOLTAGE (V) BIAS VOLTAGE (V) TEMPERATURE (°C) 3596 G01 3596 G02 3596 G03
UVLO Threshold EN/UVLO Pin Current VREF Voltage
1.8 6 2.04 VEN/UVLO = 1.4V 1.7 2.03 5 1.6 2.02 4 1.5 2.01 1.4 3 2.00 VOLTAGE (V) 1.3 1.99 2 V REF UVLO THRESHOLD (V) 1.2 EN/UVLO CURRENT (µA) 1.98 1 VIN = 55V 1.1 1.97 VIN = 24V VIN = 6V 1.0 0 1.96 –50 –25 0 25 50 75 100 125 –50 –25 0 25 50 75 100 125 –50 –25 0 25 50 75 100 125 TEMPERATURE (°C) TEMPERATURE (°C) TEMPERATURE (°C) 3596 G04 3596 G05 3596 G06
Switching Frequency SW and DA Current Limit Switch Voltage Drop
1.4 1100 1000 900 1.2 ISW 1000 R 800 T = 33.2k 1.0 900 700 600 0.8 800 500 0.6 400 700 0.4 CURRENT LIMIT (mA) IDA 300 SWITCH VOLTAGE (mV) SWITCHING FREQUENCY (MHz) RT = 220k 200 0.2 600 T = 125°C 100 T = 25°C T = –40°C 0 500 0 –50 –25 0 25 50 75 100 125 –50 –25 0 25 50 75 100 125 0 100 200 300 400 500 600 700 800 TEMPERATURE (°C) TEMPERATURE (°C) SWITCH CURRENT (mA) 3596 G07 3596 G08 3596 G09 3596fa 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 Package Description Revision History Typical Application Related Parts
TA = 25°C, unless otherwise noted VIN Quiescent Current BIAS Quiescent Current VIN, BIAS Shutdown Current
2.0 2.0 1.4 VBIAS = 5V VIN = 24V VIN = 55V 1.8 V 1.2 BIAS = 25V 1.6 1.5 1.4 1.0 1.2 1.0 0.8 1.0 0.6 CURRENT (mA) 0.8 0.5 CURRENT (µA) V IN 0.6 BIAS CURRENT (mA) 0.4 0.4 T = 125°C 0 T = 125°C 0.2 0.2 T = 25°C T = 25°C IVBIAS IVIN T = –40°C T = –40°C 0 –0.5 0 0 10 20 30 40 50 60 0 5 10 15 20 25 –50 –25 0 25 50 75 100 125 VIN VOLTAGE (V) BIAS VOLTAGE (V) TEMPERATURE (°C) 3596 G01 3596 G02 3596 G03
UVLO Threshold EN/UVLO Pin Current VREF Voltage
1.8 6 2.04 VEN/UVLO = 1.4V 1.7 2.03 5 1.6 2.02 4 1.5 2.01 1.4 3 2.00 VOLTAGE (V) 1.3 1.99 2 V REF UVLO THRESHOLD (V) 1.2 EN/UVLO CURRENT (µA) 1.98 1 VIN = 55V 1.1 1.97 VIN = 24V VIN = 6V 1.0 0 1.96 –50 –25 0 25 50 75 100 125 –50 –25 0 25 50 75 100 125 –50 –25 0 25 50 75 100 125 TEMPERATURE (°C) TEMPERATURE (°C) TEMPERATURE (°C) 3596 G04 3596 G05 3596 G06
Switching Frequency SW and DA Current Limit Switch Voltage Drop
1.4 1100 1000 900 1.2 ISW 1000 R 800 T = 33.2k 1.0 900 700 600 0.8 800 500 0.6 400 700 0.4 CURRENT LIMIT (mA) IDA 300 SWITCH VOLTAGE (mV) SWITCHING FREQUENCY (MHz) RT = 220k 200 0.2 600 T = 125°C 100 T = 25°C T = –40°C 0 500 0 –50 –25 0 25 50 75 100 125 –50 –25 0 25 50 75 100 125 0 100 200 300 400 500 600 700 800 TEMPERATURE (°C) TEMPERATURE (°C) SWITCH CURRENT (mA) 3596 G07 3596 G08 3596 G09 3596fa 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 Package Description Revision History Typical Application Related Parts