Datasheet LT3781 (Analog Devices) - 4
| 制造商 | Analog Devices |
| 描述 | Bootstrap Start Dual Transistor Synchronous Forward Controller |
| 页数 / 页 | 20 / 4 — ELECTRICAL CHARACTERISTICS. Note 1:. Note 4:. Note 2:. Note 3:. TYPICAL … |
| 文件格式/大小 | PDF / 260 Kb |
| 文件语言 | 英语 |
ELECTRICAL CHARACTERISTICS. Note 1:. Note 4:. Note 2:. Note 3:. TYPICAL PERFOR A CE CHARACTERISTICS. Shutdown Mode: VCC vs
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LT3781
ELECTRICAL CHARACTERISTICS Note 1:
Absolute Maximum Ratings are those values beyond which the life
Note 4:
The LT3781E is guaranteed to meet performance specifications of a device may be impaired. from 0°C to 70°C. Specifications over the –40°C to 85°C operating
Note 2:
Supply current specification does not include external FET gate ambient temperature range are assured by design, characterization and charge currents. Actual supply currents will be higher and vary with correlation with statistical process controls. For guaranteed performance operating frequency, operating voltages, and the type of external switch to specifications over the –40°C to 85°C operating ambient temperature elements used. See Applications Information. range, the LT3781I is available.
Note 3:
Guaranteed but not tested.
W U TYPICAL PERFOR A CE CHARACTERISTICS Shutdown Mode: VCC vs Shutdown Mode: VCC vs ICC Temperature (ICC = 1mA)
18.4 18.20 TA = 25°C 18.2 18.15 (V) 18.0 (V) 18.10 CC CC V V 17.8 18.05 17.6 18.00 100µ 300µ 1m 3m 10m –55 –40 0 40 80 125 ICC (A) TEMPERATURE (°C) 3781 • G01a 3781 • G01b
ICC Supply Current ICC Supply Current vs Temperature vs VCC Supply Voltage
20 18 VCC = 12V TA = 25°C 19 17 18 17 16 SUPPLY CURRENT (mA) SUPPLY CURRENT (mA) I CC 16 I CC 15 15 –55 –40 0 40 80 125 9 10 12 14 16 18 TEMPERATURE (°C) SUPPLY VOLTAGE (V) 3781 G01 3781 G03 3781f 4
ELECTRICAL CHARACTERISTICS Note 1:
Absolute Maximum Ratings are those values beyond which the life
Note 4:
The LT3781E is guaranteed to meet performance specifications of a device may be impaired. from 0°C to 70°C. Specifications over the –40°C to 85°C operating
Note 2:
Supply current specification does not include external FET gate ambient temperature range are assured by design, characterization and charge currents. Actual supply currents will be higher and vary with correlation with statistical process controls. For guaranteed performance operating frequency, operating voltages, and the type of external switch to specifications over the –40°C to 85°C operating ambient temperature elements used. See Applications Information. range, the LT3781I is available.
Note 3:
Guaranteed but not tested.
W U TYPICAL PERFOR A CE CHARACTERISTICS Shutdown Mode: VCC vs Shutdown Mode: VCC vs ICC Temperature (ICC = 1mA)
18.4 18.20 TA = 25°C 18.2 18.15 (V) 18.0 (V) 18.10 CC CC V V 17.8 18.05 17.6 18.00 100µ 300µ 1m 3m 10m –55 –40 0 40 80 125 ICC (A) TEMPERATURE (°C) 3781 • G01a 3781 • G01b
ICC Supply Current ICC Supply Current vs Temperature vs VCC Supply Voltage
20 18 VCC = 12V TA = 25°C 19 17 18 17 16 SUPPLY CURRENT (mA) SUPPLY CURRENT (mA) I CC 16 I CC 15 15 –55 –40 0 40 80 125 9 10 12 14 16 18 TEMPERATURE (°C) SUPPLY VOLTAGE (V) 3781 G01 3781 G03 3781f 4