Datasheet LTC3773 (Analog Devices) - 9
| 制造商 | Analog Devices |
| 描述 | Triple Output Synchronous 3-Phase DC/DC Controller with Up/Down Tracking |
| 页数 / 页 | 32 / 9 — TYPICAL PERFORMANCE CHARACTERISTICS. VCC Undervoltage Reset Voltage. … |
| 文件格式/大小 | PDF / 485 Kb |
| 文件语言 | 英语 |
TYPICAL PERFORMANCE CHARACTERISTICS. VCC Undervoltage Reset Voltage. TRACK and SDB Pull-Up Current. vs Temperature
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LTC3773
TYPICAL PERFORMANCE CHARACTERISTICS VCC Undervoltage Reset Voltage TRACK and SDB Pull-Up Current vs Temperature vs Temperature
4.4 1.2 4.3 ITRACK 4.2 0.9 POWER UP μA) 4.1 0.6 4.0 SHUTDOWN ISDB2 UNDERVOLTAGE RESET (V) 3.9 PULLUP CURRENT ( 0.3 V CC 3.8 3.7 0 –50 –25 0 25 50 75 100 125 –50 –25 0 25 50 75 100 125 TEMPERATURE (°C) TEMPERATURE (°C) 3773 G24 3773 G25
PLLIN/FC, PHASEMD, PLLFLTR, PGOOD Delay vs Temperature Threshold Voltage vs Temperature
180 3.3 VCC = 5V 170 2.9 HIGH THRESHOLD 160 2.5 μs) 150 PGOOD ↑ 2.1 140 1.7 FLOATING THRESHOLD 130 PGOOD ↓ PGOOD DELAY ( 1.3 120 THRESHOLD VOLTAGE (V) 110 0.9 LOW THRESHOLD 100 0.5 –50 –25 0 25 50 75 100 125 –50 –25 0 25 50 75 100 125 TEMPERATURE (°C) TEMPERATURE (°C) 3773 G27 3773 G26
SDB2 Threshold Voltage vs Temperature
2 VCC = 5V CHANNEL 2 ENABLE 1.5 CHANNEL 2 DISABLE 1 SDB2 SHUTDOWN THRESHOLD VOLTAGE (V) 0.5 0–50 –25 0 25 50 75 100 125 TEMPERATURE (°C) 3773 G28 3773fb 9
TYPICAL PERFORMANCE CHARACTERISTICS VCC Undervoltage Reset Voltage TRACK and SDB Pull-Up Current vs Temperature vs Temperature
4.4 1.2 4.3 ITRACK 4.2 0.9 POWER UP μA) 4.1 0.6 4.0 SHUTDOWN ISDB2 UNDERVOLTAGE RESET (V) 3.9 PULLUP CURRENT ( 0.3 V CC 3.8 3.7 0 –50 –25 0 25 50 75 100 125 –50 –25 0 25 50 75 100 125 TEMPERATURE (°C) TEMPERATURE (°C) 3773 G24 3773 G25
PLLIN/FC, PHASEMD, PLLFLTR, PGOOD Delay vs Temperature Threshold Voltage vs Temperature
180 3.3 VCC = 5V 170 2.9 HIGH THRESHOLD 160 2.5 μs) 150 PGOOD ↑ 2.1 140 1.7 FLOATING THRESHOLD 130 PGOOD ↓ PGOOD DELAY ( 1.3 120 THRESHOLD VOLTAGE (V) 110 0.9 LOW THRESHOLD 100 0.5 –50 –25 0 25 50 75 100 125 –50 –25 0 25 50 75 100 125 TEMPERATURE (°C) TEMPERATURE (°C) 3773 G27 3773 G26
SDB2 Threshold Voltage vs Temperature
2 VCC = 5V CHANNEL 2 ENABLE 1.5 CHANNEL 2 DISABLE 1 SDB2 SHUTDOWN THRESHOLD VOLTAGE (V) 0.5 0–50 –25 0 25 50 75 100 125 TEMPERATURE (°C) 3773 G28 3773fb 9