Datasheet LT3795 (Analog Devices) - 5
| 制造商 | Analog Devices |
| 描述 | 110V LED Controller with Spread Spectrum Frequency Modulation |
| 页数 / 页 | 30 / 5 — ELECTRICAL CHARACTERISTICS Note 1:. Note 2:. Note 3:. Note 4:. Note 5:. … |
| 文件格式/大小 | PDF / 848 Kb |
| 文件语言 | 英语 |
ELECTRICAL CHARACTERISTICS Note 1:. Note 2:. Note 3:. Note 4:. Note 5:. TYPICAL PERFORMANCE CHARACTERISTICS
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LT3795
ELECTRICAL CHARACTERISTICS Note 1:
Stresses beyond those listed under Absolute Maximum Ratings temperature range are assured by design, characterization and correlation may cause permanent damage to the device. Exposure to any Absolute with statistical process controls. The LT3795I is guaranteed to meet Maximum Rating condition for extended periods may affect device performance specifications over the –40°C to 125°C operating junction reliability and lifetime. temperature range. The LT3795H is guaranteed over the full –40°C to
Note 2:
Do not apply a positive or negative voltage source to TG and GATE 150°C operating junction temperature range. High junction temperatures pins, otherwise permanent damage may occur. degrade operating lifetimes. Operating lifetime is derated at junction
Note 3:
Operating maximum for INTV temperatures greater than 125°C. CC is 8V.
Note 4:
The LT3795E is guaranteed to meet specified performance from
Note 5:
See Duty Cycle Considerations in the Applications Information 0°C to 125°C. Specifications over the –40°C to 125°C operating junction section.
TYPICAL PERFORMANCE CHARACTERISTICS TA = 25°C, unless otherwise noted. V(ISP-ISN) Full-Scale Threshold V(ISP-ISN) Threshold vs VCTRL V(ISP-ISN) Threshold vs VISP vs Temperature
300 253 254 ISP = 48V 253 CTRL1= CTRL2 = 2V 250 252 252 200 251 251 150 250 250 THRESHOLD (mV) THRESHOLD (mV) THRESHOLD (mV) 100 249 249 V (ISP-ISN) 248 V (ISP-ISN) V (ISP-ISN) 50 248 247 0 247 246 0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 0 20 40 60 80 100 120 –50 –25 0 25 50 75 100 125 150 VCTRL (V) VISP (V) TEMPERATURE (°C) 3795 G01 3795 G02 3795 G03
V(ISP-ISN) Threshold at CTRL1 = 0.6V, CTRL2 = 1.2V vs Temperature V(ISP-ISN) Threshold vs FB Voltage VFB vs Temperature
128 300 1.27 127 250 1.26 126 200 (mV) 125 (V) 150 1.25 V FB THRESHOLD (mV) V (ISP-ISN) 124 100 1.24 V (ISP-ISN) 123 50 122 0 1.23 –50 –25 0 25 50 75 100 125 150 1.1 1.15 1.2 1.25 1.3 –50 –25 0 25 50 75 100 125 150 TEMPERATURE (°C) VFB (V) TEMPERATURE (°C) 3795 G03a 3795 G04 3795 G05 3795fc For more information www.linear.com/LT3795 5 Document Outline Features Applications Typical Application Description 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
ELECTRICAL CHARACTERISTICS Note 1:
Stresses beyond those listed under Absolute Maximum Ratings temperature range are assured by design, characterization and correlation may cause permanent damage to the device. Exposure to any Absolute with statistical process controls. The LT3795I is guaranteed to meet Maximum Rating condition for extended periods may affect device performance specifications over the –40°C to 125°C operating junction reliability and lifetime. temperature range. The LT3795H is guaranteed over the full –40°C to
Note 2:
Do not apply a positive or negative voltage source to TG and GATE 150°C operating junction temperature range. High junction temperatures pins, otherwise permanent damage may occur. degrade operating lifetimes. Operating lifetime is derated at junction
Note 3:
Operating maximum for INTV temperatures greater than 125°C. CC is 8V.
Note 4:
The LT3795E is guaranteed to meet specified performance from
Note 5:
See Duty Cycle Considerations in the Applications Information 0°C to 125°C. Specifications over the –40°C to 125°C operating junction section.
TYPICAL PERFORMANCE CHARACTERISTICS TA = 25°C, unless otherwise noted. V(ISP-ISN) Full-Scale Threshold V(ISP-ISN) Threshold vs VCTRL V(ISP-ISN) Threshold vs VISP vs Temperature
300 253 254 ISP = 48V 253 CTRL1= CTRL2 = 2V 250 252 252 200 251 251 150 250 250 THRESHOLD (mV) THRESHOLD (mV) THRESHOLD (mV) 100 249 249 V (ISP-ISN) 248 V (ISP-ISN) V (ISP-ISN) 50 248 247 0 247 246 0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 0 20 40 60 80 100 120 –50 –25 0 25 50 75 100 125 150 VCTRL (V) VISP (V) TEMPERATURE (°C) 3795 G01 3795 G02 3795 G03
V(ISP-ISN) Threshold at CTRL1 = 0.6V, CTRL2 = 1.2V vs Temperature V(ISP-ISN) Threshold vs FB Voltage VFB vs Temperature
128 300 1.27 127 250 1.26 126 200 (mV) 125 (V) 150 1.25 V FB THRESHOLD (mV) V (ISP-ISN) 124 100 1.24 V (ISP-ISN) 123 50 122 0 1.23 –50 –25 0 25 50 75 100 125 150 1.1 1.15 1.2 1.25 1.3 –50 –25 0 25 50 75 100 125 150 TEMPERATURE (°C) VFB (V) TEMPERATURE (°C) 3795 G03a 3795 G04 3795 G05 3795fc For more information www.linear.com/LT3795 5 Document Outline Features Applications Typical Application Description 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