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ACT30AYT Datasheet(PDF) 3 Page - Active-Semi, Inc |
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ACT30AYT Datasheet(HTML) 3 Page - Active-Semi, Inc |
3 / 10 page ACT30 Rev 5, 05-Jun-09 Active-Semi Innovative Power TM - 3 - www.active-semi.com Copyright © 2009 Active-Semi, Inc. ActiveSwitcher TM is a trademark of Active-Semi. ABSOLUTE MAXIMUM RATINGS ELECTRICAL CHARACTERISTICS (VVDD = 4V, TJ = 25°C, unless otherwise specified.) : Do not exceed these limits to prevent damage to the device. Exposure to absolute maximum rating conditions for long periods may affect device reliability. PARAMETER VALUE UNIT VDD, FREQ to GND -0.3 to 6 V VDD Current 20 mA DRV, DRV1, DRV2 to GND -0.3 to 18 V Continuous DRV, DRV1, DRV2 Current Internally limited A Maximum Power Dissipation TO-92 0.6 W SOT23-B 0.39 Operating Junction Temperature -40 to 150 ˚C Storage Temperature -55 to 150 ˚C 300 ˚C Lead Temperature (Soldering, 10 sec) PARAMETER SYMBOL TEST CONDITIONS MIN TYP MAX UNIT VVDD Start Voltage VSTART Rising edge 4.75 5 5.25 V DRV1 Start Voltage VDRVST ACT30A 8.6 10.5 V ACT30B 9.6 11.5 DRV1 Short-Circuit Detect Threshold VSCDRV 6.35 6.8 7.25 V VVDD Under-Voltage Threshold VUV Falling edge 3.17 3.35 3.63 V VVDD Clamp Voltage 10mA 5.15 5.45 5.95 V Startup Supply Current IDDST VVDD = 4V before VUV 0.23 0.45 mA Supply Current IDD 0.7 1 mA Switching Frequency fSW ACT30A/B or FREQ = 0 50 65 80 kHz Maximum Duty Cycle DMAX ACT30A, VVDD = 4V 67 75 83 % ACT30B, VVDD = 4V 60 Minimum Duty Cycle DMIN VVDD = 4.6V 3.5 % Effective Current Limit ILIM VVDD = VUV + 0.1V ACT30A 340 400 480 mA ACT30B with DRV1 = DRV2 680 800 920 VVDD to DRV1 Current Coefficient GGAIN -0.29 A/V VDD Dynamic Impedance RVDD 9 kΩ DRV1 or DRV2 Driver On- Resistance RDRV1, RDRV2 IDRV1 = IDRV2 = 0.05A 3.6 Ω DRV1 Rise Time 1nF load, 15Ω pull-up 30 ns DRV1 Fall Time 1nF load, 15Ω pull-up 20 ns DRV1 and DRV2 Switch Off Current Driver off, VDRV1 = VDRV2 = 10V 12 30 µA DRV1 must be higher than this voltage to start up. |
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