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LM3706XQBP-308 Arkusz danych(PDF) 6 Page - National Semiconductor (TI) |
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LM3706XQBP-308 Arkusz danych(HTML) 6 Page - National Semiconductor (TI) |
6 / 11 page LM3706/LM3707 Series Electrical Characteristics (Continued) Limits in the standard typeface are for T J = 25˚C and limits in boldface type apply over full operating range. Unless otherwise specified: V CC = +2.2V to 5.5V. Symbol Parameter Conditions Min Typ Max Units WDI Watchdog Input Current −1 +1 µA WDI T Watchdog Input Threshold 0.2 •V CC 1.225 0.8 •V CC V t WD Watchdog Timeout Period Watchdog Timeout Period = E, F, G, H Watchdog Timeout Period = J, K, L, M Watchdog Timeout Period = N, P, Q, R Watchdog Timeout Period = S, T, U, V 4.3 71 1120 17900 6.2 102 1600 25600 9.3 153 2400 38400 ms LLO V OL LLO Output Voltage V CC > 2.25V, ISINK = 900µA 0.3 V V CC > 2.7V, ISINK = 1.2mA 0.3 V CC > 4.5V, ISINK = 3.2mA 0.4 V OH V CC > 2.25V, ISOURCE = 300µA 0.8 V CC V CC > 2.7V, ISOURCE = 500µA 0.8 V CC V CC > 4.5V, ISOURCE = 800µA V CC − 1.5V LLO OUTPUT V LLOT LLO Output Threshold (V LLO −VRST,VCC falling) 1.01 •V RST 1.02 •V RST 1.03 •V RST V V LLOTH Low-Line Comparator Hysteresis 0.0032 •V RST mV t CD Low-Line Comparator Delay V CC falling at 1mV/µs 20 µs Note 1: Absolute Maximum Ratings indicate limits beyond which damage to the device may occur. Operating Ratings indicate conditions for which the device is intended to be functional, but do not guarantee specific performance limits. For guaranteed specifications and test conditions, see the Electrical Characteristics. The guaranteed specifications apply only for the test conditions listed. Some performance characteristics may degrade when the device is not operated under the listed conditions. Note 2: The Human Body model is a 100 pF capacitor discharged through a 1.5 k Ω resistor into each pin. The machine model is a 200pF capacitor discharged directly into each pin. Note 3: The maximum allowable power dissipation is a function of the maximum junction temperature, TJ(MAX), the junction-to-ambient thermal resistance, θJ-A, and the ambient temperature, TA. The maximum allowable power dissipation at any ambient temperture is calculated using: Where the value of θJ-A for the micro SMD package is 220˚C/W. www.national.com 6 |
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