Datasheet LTC3773 (Analog Devices) - 7
| Manufacturer | Analog Devices |
| Description | Triple Output Synchronous 3-Phase DC/DC Controller with Up/Down Tracking |
| Pages / Page | 32 / 7 — TYPICAL PERFORMANCE CHARACTERISTICS. Error Amplifi er gm. VFB vs … |
| File Format / Size | PDF / 485 Kb |
| Document Language | English |
TYPICAL PERFORMANCE CHARACTERISTICS. Error Amplifi er gm. VFB vs Temperature. vs Temperature. Maximum Current Limit
Model Line for this Datasheet
Text Version of Document
LTC3773
TYPICAL PERFORMANCE CHARACTERISTICS Error Amplifi er gm VFB vs Temperature vs Temperature
606.0 1.00 3.2 604.5 0.75 3.1 3.0 603.0 0.50 2.9 601.5 0.25 ΔVFB 2.8 (mV) (%) 600.0 0 V FB 2.7 598.5 –0.25 2.6 597.0 –0.50 2.5 ERROR AMPLIFIER gm (mmho) 595.5 –0.75 2.4 594.0 –1.00 2.3 –50 –25 0 25 50 75 100 125 –50 –25 0 25 50 75 100 125 TEMPERATURE (°C) TEMPERATURE (°C) 3773 G12 3773 G13
Maximum Current Limit Maximum Current Limit Threshold vs Temperature Threshold vs VITH
84 12 80 VFB = 0.58V VSENSE – = 5V 81 8 60 VSENSE – = 2.5V 78 4 Δ 40 VSENSE (mV) (mV) 75 0 (%) 20 V SENSE V SENSE 72 –4 0 VSENSE – = 0.6V 69 –8 –20 66 –12 –40 –50 –25 0 25 50 75 100 125 0 0.3 0.6 0.9 1.2 1.5 1.8 2.1 2.4 2.7 TEMPERATURE (°C) VITH (V) 3773 G14 3773 G15
Maximum Current Limit Threshold vs SENSE Common Maximum Current Limit Mode Voltage Threshold vs Duty Factor
90 80 VCC = 5V 87 VFB = 0.58V 70 84 60 81 78 50 (mV) (mV) 75 40 V SENSE 72 V SENSE 30 69 20 66 63 10 60 0 0 0.5 1 1.5 2 2.5 3 3.5 4 4.5 5 5.5 0 10 20 30 40 50 60 70 80 90 100 VSENSE COMMON MODE VOLTAGE (V) DUTY FACTOR (%) 3773 G16 3773 G17 3773fb 7
TYPICAL PERFORMANCE CHARACTERISTICS Error Amplifi er gm VFB vs Temperature vs Temperature
606.0 1.00 3.2 604.5 0.75 3.1 3.0 603.0 0.50 2.9 601.5 0.25 ΔVFB 2.8 (mV) (%) 600.0 0 V FB 2.7 598.5 –0.25 2.6 597.0 –0.50 2.5 ERROR AMPLIFIER gm (mmho) 595.5 –0.75 2.4 594.0 –1.00 2.3 –50 –25 0 25 50 75 100 125 –50 –25 0 25 50 75 100 125 TEMPERATURE (°C) TEMPERATURE (°C) 3773 G12 3773 G13
Maximum Current Limit Maximum Current Limit Threshold vs Temperature Threshold vs VITH
84 12 80 VFB = 0.58V VSENSE – = 5V 81 8 60 VSENSE – = 2.5V 78 4 Δ 40 VSENSE (mV) (mV) 75 0 (%) 20 V SENSE V SENSE 72 –4 0 VSENSE – = 0.6V 69 –8 –20 66 –12 –40 –50 –25 0 25 50 75 100 125 0 0.3 0.6 0.9 1.2 1.5 1.8 2.1 2.4 2.7 TEMPERATURE (°C) VITH (V) 3773 G14 3773 G15
Maximum Current Limit Threshold vs SENSE Common Maximum Current Limit Mode Voltage Threshold vs Duty Factor
90 80 VCC = 5V 87 VFB = 0.58V 70 84 60 81 78 50 (mV) (mV) 75 40 V SENSE 72 V SENSE 30 69 20 66 63 10 60 0 0 0.5 1 1.5 2 2.5 3 3.5 4 4.5 5 5.5 0 10 20 30 40 50 60 70 80 90 100 VSENSE COMMON MODE VOLTAGE (V) DUTY FACTOR (%) 3773 G16 3773 G17 3773fb 7
