Datasheet LT3753 (Analog Devices) - 7
| Manufacturer | Analog Devices |
| Description | Active Clamp Synchronous Forward Controller |
| Pages / Page | 36 / 7 — TYPICAL PERFORMANCE CHARACTERISTICS TA = 25°C, unless otherwise noted. … |
| Revision | B |
| File Format / Size | PDF / 1.7 Mb |
| Document Language | English |
TYPICAL PERFORMANCE CHARACTERISTICS TA = 25°C, unless otherwise noted. VIN Shutdown Current. VIN(ON), VIN(OFF) Thresholds
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LT3753
TYPICAL PERFORMANCE CHARACTERISTICS TA = 25°C, unless otherwise noted. VIN Shutdown Current VIN(ON), VIN(OFF) Thresholds VIN Quiescent Current vs Junction vs Junction Temperature vs Junction Temperature Temperature
40 9.0 8 VIN = 12V, UVLO_VSEC = 0.2V VIN = 12V, NO SWITCHING 8.5 30 7 8.0 VIN_ON 20 7.5 (mA) I Q 6 CURRENT (µA) VIN_OFF V IN V IN 7.0 10 ON/OFF THRESHOLDS (V) 5 V IN 6.5 0 6.0 4 –75 –50 –25 0 25 50 75 100 125 150 175 –75 –50 –25 0 25 50 75 100 125 150 175 –75 –50 –25 0 25 50 75 100 125 150 175 JUNCTION TEMPERATURE (°C) JUNCTION TEMPERATURE (°C) JUNCTION TEMPERATURE (°C) 3753 G01 3753 G02 3753 G03
UVLO_VSEC Turn-On Threshold UVLO_VSEC Hysteresis Current INTVCC in Dropout at VIN = 8.75V vs Junction Temperature vs Junction Temperature vs Current, Junction Temperature
1.275 6.0 10.0 VIN = 12V 1.270 9.5 1.265 9.0 5.5 1.260 8.5 1.255 8.0 (V) 1.250 5.0 V CC 7.5 1.245 INT 7.0 1.240 6.5 4.5 I UVLO_VSEC THRESHOLD (V) 1.235 6.0 LOAD = 0mA ILOAD = 10mA 1.230 5.5 ILOAD = 15mA UVLO_VSEC HYSTERESIS CURRENT (µA) ILOAD = 20mA 1.225 4.0 5.0 –75 –50 –25 0 25 50 75 100 125 150 175 –75 –50 –25 0 25 50 75 100 125 150 175 –75 –50 –25 0 25 50 75 100 125 150 175 JUNCTION TEMPERATURE (°C) JUNCTION TEMPERATURE (°C) JUNCTION TEMPERATURE (°C) 3753 G04 3753 G05 3753 G06
INTVCC UVLO Thresholds vs INTVCC Regulation Voltage vs SS1 Soft-Start/Soft-Stop Pin Junction Temperature Current, Junction Temperature Currents vs Junction Temperature
7.20 10.00 14.0 V 7.15 9.95 IN = 12V 13.5 7.10 9.90 13.0 7.05 INTVCC > UVLO (+): ENABLE FORWARD 9.85 12.5 CONVERTER SWITCHING 7.00 9.80 12.0 SS1 SOFT-START: CHARGE CURRENT* (–1) 6.95 (V) 9.75 11.5 6.90 V CC 9.70 11.0 6.85 INT 9.65 CURRENTS (µA) 10.5 UVLO THRESHOLDS (V) 6.80 9.60 10.0 SS1 SS1 SOFT-STOP: DISCHARGE CURRENT V CC 6.75 INTVCC < UVLO (–): DISABLE FORWARD 9.55 ILOAD = 0mA 9.5 INT 6.70 CONVERTER SWITCHING 9.50 ILOAD = 10mA 9.0 I 6.65 9.45 LOAD = 20mA I 8.5 LOAD = 30mA 6.60 9.40 8.0 –75 –50 –25 0 25 50 75 100 125 150 175 –75 –50 –25 0 25 50 75 100 125 150 175 –75 –50 –25 0 25 50 75 100 125 150 175 JUNCTION TEMPERATURE (°C) JUNCTION TEMPERATURE (°C) JUNCTION TEMPERATURE (°C) 3753 G07 3753 G08 3753 G09 Rev. B For more information www.analog.com 7 Document Outline Features Applications Typical Application Description Table of Contents Absolute Maximum Ratings Order Information Pin Configuration Electrical Characteristics Typical Performance Characteristics Pin Functions Block Diagram Timing Diagrams Operation Applications Information Package Description Revision History Typical Application Related Parts
TYPICAL PERFORMANCE CHARACTERISTICS TA = 25°C, unless otherwise noted. VIN Shutdown Current VIN(ON), VIN(OFF) Thresholds VIN Quiescent Current vs Junction vs Junction Temperature vs Junction Temperature Temperature
40 9.0 8 VIN = 12V, UVLO_VSEC = 0.2V VIN = 12V, NO SWITCHING 8.5 30 7 8.0 VIN_ON 20 7.5 (mA) I Q 6 CURRENT (µA) VIN_OFF V IN V IN 7.0 10 ON/OFF THRESHOLDS (V) 5 V IN 6.5 0 6.0 4 –75 –50 –25 0 25 50 75 100 125 150 175 –75 –50 –25 0 25 50 75 100 125 150 175 –75 –50 –25 0 25 50 75 100 125 150 175 JUNCTION TEMPERATURE (°C) JUNCTION TEMPERATURE (°C) JUNCTION TEMPERATURE (°C) 3753 G01 3753 G02 3753 G03
UVLO_VSEC Turn-On Threshold UVLO_VSEC Hysteresis Current INTVCC in Dropout at VIN = 8.75V vs Junction Temperature vs Junction Temperature vs Current, Junction Temperature
1.275 6.0 10.0 VIN = 12V 1.270 9.5 1.265 9.0 5.5 1.260 8.5 1.255 8.0 (V) 1.250 5.0 V CC 7.5 1.245 INT 7.0 1.240 6.5 4.5 I UVLO_VSEC THRESHOLD (V) 1.235 6.0 LOAD = 0mA ILOAD = 10mA 1.230 5.5 ILOAD = 15mA UVLO_VSEC HYSTERESIS CURRENT (µA) ILOAD = 20mA 1.225 4.0 5.0 –75 –50 –25 0 25 50 75 100 125 150 175 –75 –50 –25 0 25 50 75 100 125 150 175 –75 –50 –25 0 25 50 75 100 125 150 175 JUNCTION TEMPERATURE (°C) JUNCTION TEMPERATURE (°C) JUNCTION TEMPERATURE (°C) 3753 G04 3753 G05 3753 G06
INTVCC UVLO Thresholds vs INTVCC Regulation Voltage vs SS1 Soft-Start/Soft-Stop Pin Junction Temperature Current, Junction Temperature Currents vs Junction Temperature
7.20 10.00 14.0 V 7.15 9.95 IN = 12V 13.5 7.10 9.90 13.0 7.05 INTVCC > UVLO (+): ENABLE FORWARD 9.85 12.5 CONVERTER SWITCHING 7.00 9.80 12.0 SS1 SOFT-START: CHARGE CURRENT* (–1) 6.95 (V) 9.75 11.5 6.90 V CC 9.70 11.0 6.85 INT 9.65 CURRENTS (µA) 10.5 UVLO THRESHOLDS (V) 6.80 9.60 10.0 SS1 SS1 SOFT-STOP: DISCHARGE CURRENT V CC 6.75 INTVCC < UVLO (–): DISABLE FORWARD 9.55 ILOAD = 0mA 9.5 INT 6.70 CONVERTER SWITCHING 9.50 ILOAD = 10mA 9.0 I 6.65 9.45 LOAD = 20mA I 8.5 LOAD = 30mA 6.60 9.40 8.0 –75 –50 –25 0 25 50 75 100 125 150 175 –75 –50 –25 0 25 50 75 100 125 150 175 –75 –50 –25 0 25 50 75 100 125 150 175 JUNCTION TEMPERATURE (°C) JUNCTION TEMPERATURE (°C) JUNCTION TEMPERATURE (°C) 3753 G07 3753 G08 3753 G09 Rev. B For more information www.analog.com 7 Document Outline Features Applications Typical Application Description Table of Contents Absolute Maximum Ratings Order Information Pin Configuration Electrical Characteristics Typical Performance Characteristics Pin Functions Block Diagram Timing Diagrams Operation Applications Information Package Description Revision History Typical Application Related Parts
