Datasheet LT3002 (Analog Devices) - 3
| 制造商 | Analog Devices |
| 描述 | 36V 10W No-Opto Isolated Flyback Converter |
| 页数 / 页 | 12 / 3 — ELECTRICAL CHARACTERISTICS. The. denotes the specifications which apply … |
| 文件格式/大小 | PDF / 811 Kb |
| 文件语言 | 英语 |
ELECTRICAL CHARACTERISTICS. The. denotes the specifications which apply over the full operating
该数据表的模型线
文件文字版本
LT3002
ELECTRICAL CHARACTERISTICS The
l
denotes the specifications which apply over the full operating temperature range, otherwise specifications are at TA = 25°C. VIN = 5V, VEN/UVLO = VIN, CINTVCC = 1µF to GND, unless otherwise noted. SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNIT
VIN VIN Voltage Range 4 36 V IQ VIN Quiescent Current VEN/UVLO = 0.2V 0.5 2 µA Active Mode 380 µA EN/UVLO Shutdown Threshold For Lowest Off IQ 0.2 0.75 V EN/UVLO Enable Threshold Falling 1.178 1.214 1.250 V EN/UVLO Enable Hysteresis 14 mV IHYS EN/UVLO Hysteresis Current VEN/UVLO = 1.1V 2.3 2.5 2.7 µA VEN/UVLO = 1.3V –0.1 0 0.1 µA VINTVCC INTVCC Regulation Voltage IINTVCC = 0mA to 10mA 2.85 3 3.1 V IINTVCC INTVCC Current Limit VINTVCC = 2.8V 10 13 20 mA INTVCC UVLO Threshold Falling 2.39 2.47 2.55 V INTVCC UVLO Hysteresis 105 mV (RFB – VIN) Voltage IRFB = 75µA to 125µA –50 50 mV RREF Regulation Voltage l 0.98 1.00 1.02 V VTC TC Pin Voltage 1.00 V ITC TC Pin Current VTC = 1.2V 12 15 18 µA VTC = 0.8V –200 µA fMIN Minimum Switching Frequency 11.3 12 12.7 kHz tON(MIN) Minimum Switch-On Time 160 ns ISW(MAX) Maximum Switch Current Limit 3.6 4.5 5.4 A ISW(MIN) Minimum Switch Current Limit 0.70 0.87 1.04 A RDS(ON) Switch On-Resistance ISW = 1.5A 80 mΩ
Note 1:
Stresses beyond those listed under Absolute Maximum Ratings to 125°C operating junction temperature range are assured by design, may cause permanent damage to the device. Exposure to any Absolute characterization and correlation with statistical process controls. The Maximum Rating condition for extended periods may affect device LT3002I is guaranteed over the full –40°C to 125°C operating junction reliability and lifetime. temperature range.
Note 2:
The SW pin is rated to 65V for transients. Depending on the
Note 4:
The LT3002 includes overtemperature protection that is intended leakage inductance voltage spike, operating waveforms of the SW pin to protect the device during momentary overload conditions. Junction should be derated to keep the flyback voltage spike below 65V. temperature will exceed 150°C when overtemperature protection is active.
Note 3:
The LT3002E is guaranteed to meet performance specifications Continuous operation above the specified maximum operating junction from 0°C to 125°C junction temperature. Specifications over the –40°C temperature may impair device reliability. Rev. 0 For more information www.analog.com 3 Document Outline Features Applications Typical Application Description Absolute Maximum Ratings Order Information Pin Configuration Electrical Characteristics Typical Performance Characteristics Pin Functions Operation Applications Information Package Description
ELECTRICAL CHARACTERISTICS The
l
denotes the specifications which apply over the full operating temperature range, otherwise specifications are at TA = 25°C. VIN = 5V, VEN/UVLO = VIN, CINTVCC = 1µF to GND, unless otherwise noted. SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNIT
VIN VIN Voltage Range 4 36 V IQ VIN Quiescent Current VEN/UVLO = 0.2V 0.5 2 µA Active Mode 380 µA EN/UVLO Shutdown Threshold For Lowest Off IQ 0.2 0.75 V EN/UVLO Enable Threshold Falling 1.178 1.214 1.250 V EN/UVLO Enable Hysteresis 14 mV IHYS EN/UVLO Hysteresis Current VEN/UVLO = 1.1V 2.3 2.5 2.7 µA VEN/UVLO = 1.3V –0.1 0 0.1 µA VINTVCC INTVCC Regulation Voltage IINTVCC = 0mA to 10mA 2.85 3 3.1 V IINTVCC INTVCC Current Limit VINTVCC = 2.8V 10 13 20 mA INTVCC UVLO Threshold Falling 2.39 2.47 2.55 V INTVCC UVLO Hysteresis 105 mV (RFB – VIN) Voltage IRFB = 75µA to 125µA –50 50 mV RREF Regulation Voltage l 0.98 1.00 1.02 V VTC TC Pin Voltage 1.00 V ITC TC Pin Current VTC = 1.2V 12 15 18 µA VTC = 0.8V –200 µA fMIN Minimum Switching Frequency 11.3 12 12.7 kHz tON(MIN) Minimum Switch-On Time 160 ns ISW(MAX) Maximum Switch Current Limit 3.6 4.5 5.4 A ISW(MIN) Minimum Switch Current Limit 0.70 0.87 1.04 A RDS(ON) Switch On-Resistance ISW = 1.5A 80 mΩ
Note 1:
Stresses beyond those listed under Absolute Maximum Ratings to 125°C operating junction temperature range are assured by design, may cause permanent damage to the device. Exposure to any Absolute characterization and correlation with statistical process controls. The Maximum Rating condition for extended periods may affect device LT3002I is guaranteed over the full –40°C to 125°C operating junction reliability and lifetime. temperature range.
Note 2:
The SW pin is rated to 65V for transients. Depending on the
Note 4:
The LT3002 includes overtemperature protection that is intended leakage inductance voltage spike, operating waveforms of the SW pin to protect the device during momentary overload conditions. Junction should be derated to keep the flyback voltage spike below 65V. temperature will exceed 150°C when overtemperature protection is active.
Note 3:
The LT3002E is guaranteed to meet performance specifications Continuous operation above the specified maximum operating junction from 0°C to 125°C junction temperature. Specifications over the –40°C temperature may impair device reliability. Rev. 0 For more information www.analog.com 3 Document Outline Features Applications Typical Application Description Absolute Maximum Ratings Order Information Pin Configuration Electrical Characteristics Typical Performance Characteristics Pin Functions Operation Applications Information Package Description