Datasheet LT3752, LT3752-1 (Analog Devices) - 9
| Manufacturer | Analog Devices |
| Description | Active Clamp Synchronous Forward Controllers with Internal Housekeeping Controller |
| Pages / Page | 52 / 9 — TYPICAL PERFORMANCE CHARACTERISTICS TA = 25°C, unless otherwise noted. … |
| Revision | C |
| File Format / Size | PDF / 2.3 Mb |
| Document Language | English |
TYPICAL PERFORMANCE CHARACTERISTICS TA = 25°C, unless otherwise noted. VIN Start-Up and Shutdown Current
Model Line for this Datasheet
- LT3752EFE#PBF LT3752EFE#TRPBF LT3752EFE#WPBF LT3752EFE#WTRPBF LT3752EFE-1#PBF LT3752EFE-1#TRPBF LT3752EFE-1#WPBF LT3752EFE-1#WTRPBF LT3752HFE#PBF LT3752HFE#TRPBF LT3752HFE#WPBF LT3752HFE#WTRPBF LT3752HFE-1#PBF LT3752HFE-1#TRPBF LT3752HFE-1#WPBF LT3752HFE-1#WTRPBF LT3752HFE-2#WPBF LT3752HFE-2#WTRPBF LT3752IFE#PBF LT3752IFE#TRPBF LT3752IFE#WPBF LT3752IFE#WTRPBF LT3752IFE-1#PBF LT3752IFE-1#TRPBF LT3752IFE-1#WPBF LT3752IFE-1#WTRPBF LT3752MPFE#PBF LT3752MPFE#TRPBF LT3752MPFE-1#PBF LT3752MPFE-1#TRPBF
Text Version of Document
LT3752/LT3752-1
TYPICAL PERFORMANCE CHARACTERISTICS TA = 25°C, unless otherwise noted. VIN Start-Up and Shutdown Current VIN(ON), VIN(OFF) Thresholds VIN Quiescent Current vs Junction vs Junction Temperature vs Junction Temperature Temperature
220 10.0 8 LT3752-1 VIN_ON LT3752/-1: HOUSEKEEPING + FORWARD 200 9.5 7 (NO SWITCHING) 180 9.0 160 6 8.5 LT3752-1 V 140 IN START-UP CURRENT (V 8.0 IN = VIN_ON) 5 LT3752-1 VIN_OFF LT3752: HOUSEKEEPING ONLY 120 7.5 (mA) (NO SWITCHING) 4 100 I Q 7.0 CURRENT (µA) V IN 80 6.5 3 V IN 60 LT3752/LT3752-1 V ON/OFF THRESHOLDS (V) 6.0 LT3752 VIN_ON LT3752-1: HOUSEKEEPING ONLY IN SHUTDOWN CURRENT 2 40 (V V IN (NO SWITCHING) IN = 12V) UVLO_VSEC = 0.2V 5.5 LT3752 VIN_OFF 1 20 5.0 0 4.5 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) 3752 G01 3752 G02 3752 G03
UVLO_VSEC Turn-On Threshold UVLO_VSEC Hysteresis Current HFB PGOOD Thresholds vs Junction Temperature vs Junction Temperature vs Junction Temperature
1.275 6.0 1.20 1.270 1.15 1.265 5.5 1.10 1.260 1.255 1.05 HFB PGOOD (+) = ENABLE FORWARD 1.250 5.0 1.00 CONTROLLER CIRCUITRY 1.245 0.95 1.240 4.5 0.90 HFB PGOOD (–) = DISABLE FORWARD UVLO_VSEC THRESHOLD (V) 1.235 HFB PGOOD THRESHOLDS (V) CONTROLLER CIRCUITRY 1.230 0.85 UVLO_VSEC HYSTERESIS CURRENT (µA) 1.225 4.0 0.80 –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) 3752 G04 3752 G05 3752 G06
HFB Reference Voltage HFB OVLO Thresholds vs Junction Temperature vs Junction Temperature
1.100 1.30 1.075 1.25 HFB > OVLO (+) = DISABLE HOUT SWITCHING 1.050 1.20 TAGE (V) 1.025 1.000 1.15 HFB < OVLO (–) = ENABLE HOUSEKEEPING 0.975 1.10 OPERATION 0.950 HFB OVLO THRESHOLDS (V) HFB REFERENCE VOL 1.05 0.925 0.900 1.00 –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) 3752 G08 3752 G07 Rev. C For more information www.analog.com 9 Document Outline Features Applications Typical Application Description Table of Contents Absolute Maximum Ratings Order Information Pin Configuration Order Information Electrical Characteristics Pin Functions Block Diagram Timing Diagrams Operation Applications Information Typical Applications Package Description Revision History Typical Application Related Parts
TYPICAL PERFORMANCE CHARACTERISTICS TA = 25°C, unless otherwise noted. VIN Start-Up and Shutdown Current VIN(ON), VIN(OFF) Thresholds VIN Quiescent Current vs Junction vs Junction Temperature vs Junction Temperature Temperature
220 10.0 8 LT3752-1 VIN_ON LT3752/-1: HOUSEKEEPING + FORWARD 200 9.5 7 (NO SWITCHING) 180 9.0 160 6 8.5 LT3752-1 V 140 IN START-UP CURRENT (V 8.0 IN = VIN_ON) 5 LT3752-1 VIN_OFF LT3752: HOUSEKEEPING ONLY 120 7.5 (mA) (NO SWITCHING) 4 100 I Q 7.0 CURRENT (µA) V IN 80 6.5 3 V IN 60 LT3752/LT3752-1 V ON/OFF THRESHOLDS (V) 6.0 LT3752 VIN_ON LT3752-1: HOUSEKEEPING ONLY IN SHUTDOWN CURRENT 2 40 (V V IN (NO SWITCHING) IN = 12V) UVLO_VSEC = 0.2V 5.5 LT3752 VIN_OFF 1 20 5.0 0 4.5 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) 3752 G01 3752 G02 3752 G03
UVLO_VSEC Turn-On Threshold UVLO_VSEC Hysteresis Current HFB PGOOD Thresholds vs Junction Temperature vs Junction Temperature vs Junction Temperature
1.275 6.0 1.20 1.270 1.15 1.265 5.5 1.10 1.260 1.255 1.05 HFB PGOOD (+) = ENABLE FORWARD 1.250 5.0 1.00 CONTROLLER CIRCUITRY 1.245 0.95 1.240 4.5 0.90 HFB PGOOD (–) = DISABLE FORWARD UVLO_VSEC THRESHOLD (V) 1.235 HFB PGOOD THRESHOLDS (V) CONTROLLER CIRCUITRY 1.230 0.85 UVLO_VSEC HYSTERESIS CURRENT (µA) 1.225 4.0 0.80 –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) 3752 G04 3752 G05 3752 G06
HFB Reference Voltage HFB OVLO Thresholds vs Junction Temperature vs Junction Temperature
1.100 1.30 1.075 1.25 HFB > OVLO (+) = DISABLE HOUT SWITCHING 1.050 1.20 TAGE (V) 1.025 1.000 1.15 HFB < OVLO (–) = ENABLE HOUSEKEEPING 0.975 1.10 OPERATION 0.950 HFB OVLO THRESHOLDS (V) HFB REFERENCE VOL 1.05 0.925 0.900 1.00 –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) 3752 G08 3752 G07 Rev. C For more information www.analog.com 9 Document Outline Features Applications Typical Application Description Table of Contents Absolute Maximum Ratings Order Information Pin Configuration Order Information Electrical Characteristics Pin Functions Block Diagram Timing Diagrams Operation Applications Information Typical Applications Package Description Revision History Typical Application Related Parts
