Datasheet LTC3892, LTC3892-1, LTC3892-2 (Analog Devices) - 9
| Hersteller | Analog Devices |
| Beschreibung | 60V Low IQ, Dual, 2-Phase Synchronous Step-Down DC/DC Controller |
| Seiten / Seite | 38 / 9 — TYPICAL PERFORMANCE CHARACTERISTICS. SENSE Pins Total Input Current. … |
| Dateiformat / Größe | PDF / 1.4 Mb |
| Dokumentensprache | Englisch |
TYPICAL PERFORMANCE CHARACTERISTICS. SENSE Pins Total Input Current. SENSE– Pin Input Bias Current vs. vs VSENSE Voltage
Modelllinie für dieses Datenblatt
- LTC3892EFE-1#PBF LTC3892EFE-1#TRPBF LTC3892EUH#PBF LTC3892EUH#TRPBF LTC3892EUH-2#PBF LTC3892EUH-2#TRPBF LTC3892HFE-1#PBF LTC3892HFE-1#TRPBF LTC3892HUH#PBF LTC3892HUH#TRPBF LTC3892HUH-2#PBF LTC3892HUH-2#TRPBF LTC3892IFE-1#PBF LTC3892IFE-1#TRPBF LTC3892IUH#PBF LTC3892IUH#TRPBF LTC3892IUH-2#PBF LTC3892IUH-2#TRPBF LTC3892MPFE-1#PBF LTC3892MPFE-1#TRPBF LTC3892MPUH#PBF LTC3892MPUH#TRPBF LTC3892MPUH-2#PBF LTC3892MPUH-2#TRPBF
Textversion des Dokuments
LTC3892/ LTC3892-1/LTC3892-2
TYPICAL PERFORMANCE CHARACTERISTICS SENSE Pins Total Input Current SENSE– Pin Input Bias Current vs vs VSENSE Voltage Temperature
800 900 700 800 VOUT > INTVCC + 0.5V 600 700 600 500 500 400 400 300 300 SENSE CURRENT (µA) 200 SENSE CURRENT (µA) 200 100 100 VOUT < INTVCC – 0.5V 0 0 0 5 10 15 20 25 30 35 40 45 50 55 60 65 –75 –50 –25 0 25 50 75 100 125 150 VSENSE COMMON MODE VOLTAGE (V) TEMPERATURE (°C) 3892 G13 3892 G14
Maximum Current Sense Foldback Current Limit Threshold vs Duty Cycle
120 100 110 LTC3892-2 90 100 80 TAGE (mV) 90 TAGE (mV) 70 80 70 60 60 50 50 40 40 LTC3892/LTC3892-1 30 30 20 20 ILIM = INTVCC ILIM = INTVCC I I 10 LIM = FLOAT 10 LIM = FLOAT MAXIMUM CURRENT SENSE VOL ILIM = GND MAXIMUM CURRENT SENSE VOL ILIM = GND 0 0 0 100 200 300 400 500 600 700 800 0 10 20 30 40 50 60 70 80 90 100 FEEDBACK VOLTAGE (mV) DUTY CYCLE (%) 3892 G15 3892 G16
Maximum Current Sense Shutdown (RUN) Threshold Threshold vs ITH Voltage vs Temperature
100 1.4 5% DUTY CYCLE 80 1.35 PULSE-SKIPPING 1.3 60 RISING Burst Mode TAGE (mV) OPERATION 1.25 40 TAGE (V) 1.2 20 FALLING 1.15 I 0 LIM = GND ILIM = FLOAT RUN PIN VOL 1.1 I CURRENT SENSE VOL LIM = INTVCC –20 FORCED CONTINUOUS MODE 1.05 –40 1 0 0.2 0.4 0.6 0.8 1 1.2 1.4 –75 –50 –25 0 25 50 75 100 125 150 VITH (V) TEMPERATURE (°C) 3892 G17 3892 G18 38921fc For more information www.linear.com/LTC3892 9 Document Outline Features Applications Description Typical Application Absolute Maximum Ratings Pin Configuration Order Information Typical Performance Characteristics Pin Functions Functional Diagrams Operation Package Description Typical Application Related Parts
TYPICAL PERFORMANCE CHARACTERISTICS SENSE Pins Total Input Current SENSE– Pin Input Bias Current vs vs VSENSE Voltage Temperature
800 900 700 800 VOUT > INTVCC + 0.5V 600 700 600 500 500 400 400 300 300 SENSE CURRENT (µA) 200 SENSE CURRENT (µA) 200 100 100 VOUT < INTVCC – 0.5V 0 0 0 5 10 15 20 25 30 35 40 45 50 55 60 65 –75 –50 –25 0 25 50 75 100 125 150 VSENSE COMMON MODE VOLTAGE (V) TEMPERATURE (°C) 3892 G13 3892 G14
Maximum Current Sense Foldback Current Limit Threshold vs Duty Cycle
120 100 110 LTC3892-2 90 100 80 TAGE (mV) 90 TAGE (mV) 70 80 70 60 60 50 50 40 40 LTC3892/LTC3892-1 30 30 20 20 ILIM = INTVCC ILIM = INTVCC I I 10 LIM = FLOAT 10 LIM = FLOAT MAXIMUM CURRENT SENSE VOL ILIM = GND MAXIMUM CURRENT SENSE VOL ILIM = GND 0 0 0 100 200 300 400 500 600 700 800 0 10 20 30 40 50 60 70 80 90 100 FEEDBACK VOLTAGE (mV) DUTY CYCLE (%) 3892 G15 3892 G16
Maximum Current Sense Shutdown (RUN) Threshold Threshold vs ITH Voltage vs Temperature
100 1.4 5% DUTY CYCLE 80 1.35 PULSE-SKIPPING 1.3 60 RISING Burst Mode TAGE (mV) OPERATION 1.25 40 TAGE (V) 1.2 20 FALLING 1.15 I 0 LIM = GND ILIM = FLOAT RUN PIN VOL 1.1 I CURRENT SENSE VOL LIM = INTVCC –20 FORCED CONTINUOUS MODE 1.05 –40 1 0 0.2 0.4 0.6 0.8 1 1.2 1.4 –75 –50 –25 0 25 50 75 100 125 150 VITH (V) TEMPERATURE (°C) 3892 G17 3892 G18 38921fc For more information www.linear.com/LTC3892 9 Document Outline Features Applications Description Typical Application Absolute Maximum Ratings Pin Configuration Order Information Typical Performance Characteristics Pin Functions Functional Diagrams Operation Package Description Typical Application Related Parts