MAX3471 1.6µA, RS-485/RS-422, Half-Duplex, Differential ... - Maxim

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1.6µA, RS-485/RS-422, Half-Duplex,Differential Transceiver for Battery-Powered SystemsMAX3471ABSOLUTE MAXIMUM RATINGS (Note 1)Supply Voltage (V CC ) ..............................................................7VControl Input Voltage (RE, DE)...................-0.3V to (V CC + 0.3V)Driver Input Voltage (DI).............................-0.3V to (V CC + 0.3V)Driver Output/Receiver Input Voltage (A, B).....................±10.5VReceiver Output Voltage (RO)....................-0.3V to (V CC + 0.3V)Continuous Power DissipationµMAX (derate 4.5mW/°C above +70°C) ......................362mWOperating Temperature RangesMAX3471CUA.....................................................0°C to +70°CMAX3471EUA ..................................................-40°C to +85°CStorage Temperature Range .............................-65°C to +160°CLead Temperature (soldering, 10sec) .............................+300°CNote 1: All currents into the device are positive; all currents out of the device are negative. All voltages are referred to deviceground unless otherwise noted.Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functionaloperation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure toabsolute maximum rating conditions for extended periods may affect device reliability.DC ELECTRICAL CHARACTERISTICS(V CC = +2.5V to +5.5V, T A = T MIN to T MAX , unless otherwise noted. Typical values are at V CC = +3.6V and T A = +25°C.) (Note 1)PARAMETERSYMBOLCONDITIONSMIN TYP MAXUNITSDifferential Driver Output (no load)V OD1Figure 1 (R = open)V CCVR = 750Ω (RS-422)1.5 3.28Differential Driver Output(with load)V OD2Figure 1R = 27Ω (RS-485)R = 27Ω (RS-485),V CC = 5V, T A = +25°C0.2 0.831.5VChange in Magnitude ofDifferential Output Voltage(Note 2)∆V ODFigure 1, R = 750Ω or 27Ω0.2VDriver Common-Mode OutputVoltageV OCFigure 1, R = 750Ω or 27Ω0.6 x V CCVChange in Magnitude ofCommon-Mode Voltage (Note 2)∆V OCFigure 1, R = 750Ω or 27Ω0.2VInput High VoltageInput Low VoltageDI Input HysteresisInput CurrentInput Current (A and B),Half DuplexDriver Short-Circuit OutputCurrent (Note 3)Receiver Differential ThresholdVoltageReceiver Input HysteresisReceiver Output High VoltageReceiver Output Low VoltageThree-State Current at ReceiverOutputReceiver Input ResistanceV IHV ILV HYSI IN1I IN2I OSDV TH∆V THV OHV OLI OZRR INDE, DI, REDE, DI, REDE, DI, REDE = GND,V CC = GND or 5.5V-7V ≤ V OUT ≤ 10V-7V ≤ V CM ≤ 10VV CM = 0I O = -0.8mA, V ID = -50mVI O = 2.2mA, V ID = -450mVV IN = 10VV IN = -7V -0.075V CC ≤ 3.6V-60 60V CC ≤ 5.5V0.7 x V CC0.3 x V CC100±0.001 ±10.105-130 130-450 -250 -50V CC - 0.40 ≤ V O ≤ V CC ±1 µA-7V ≤ V CM ≤ 10V 96kΩ320.4VVmVµAmAmAmVmVVV2 _______________________________________________________________________________________
1.6µA, RS-485/RS-422, Half-Duplex,Differential Transceiver for Battery-Powered SystemsDC ELECTRICAL CHARACTERISTICS (continued)(V CC = +2.5V to +5.5V, T A = T MIN to T MAX , unless otherwise noted. Typical values are at V CC = +3.6V and T A = +25°C.) (Note 1)PARAMETERReceiver Output Short-CircuitCurrentSupply CurrentSYMBOLI OSRI CCCONDITIONSMIN TYP MAXV CC ≤ 3.6V-20 500 ≤ V RO ≤ V CCV CC ≤ 5.5V -40 110V CC ≤ 3.6V, no load,RE = DI = GND or V CC ,V A = V B = 0V CC ≤ 5.5V, no load,RE = DI = GND or V CC ,V A = V B = 0UNITSmADE = V CCDE = GND501.6602µADE = V CC83 100DE = GND 2.8 4MAX3471SWITCHING CHARACTERISTICS(V CC = +2.5V to +5.5V, T A = T MIN to T MAX , unless otherwise noted. Typical values are at V CC = +3.6V and T A = +25°C.)PARAMETERDriver Input to OutputPropagation DelayDriver Output Skew(t DPLH - t DPHL )Driver Rise or Fall TimeDriver Enable Time to OutputHighDriver Enable Time to OutputLowDriver Disable Time from LowDriver Disable Time from HighReceiver Input to OutputPropagation DelayDifferential Receiver Skew(t RPLH - t RPHL )Data RateReceiver Enable Time toOutput LowReceiver Enable Time toOutput HighReceiver Disable Time from LowReceiver DisableTime from HighSYMBOLCONDITIONSMIN TYP MAXt DPLH, Figures 3 and 5, R DIFF = 1.5kΩ,1.40 2.00t DPHL C L1 = C L2 = 100pFt DSKEWt DR , t DFt DZHt DZLFigures 3 and 5, R DIFF = 1.5kΩ,C L1 = C L2 = 100pFFigures 3 and 5, R DIFF = 1.5kΩ,C L1 = C L2 = 100pF0.0250.75 1.34 1.75UNITSFigures 4 and 6, C L = 100pF, S2 closed, S1 open 1.5 6.00 µsFigures 4 and 6, C L = 100pF, S1 closed, S2 open 0.86 4.00 µst DLZ Figures 4 and 6, C L = 15pF, S1 closed, S2 open 0.4 1.5 µst DHZ Figures 4 and 6, C L = 15pF, S2 closed, S1 open 0.6 1.5 µst RPLH 5.2 12Figures 7 and 9, C L = 15pF, |V ID| = 2Vt RPHL6.4 12µst RSKEWf MAXt RZLt RZHt RLZt RHZFigures 7 and 9, |V ID| = 2V 1.2µsFigure 9, C L = 100pFFigures 2 and 8, C L = 15pF, S1 closed, S2 openFigures 2 and 8, C L = 15pF, S2 closed, S1 openFigures 2 and 8, C L = 15pF, S1 closed, S2 openFigures 2 and 8, C L = 15pF, S2 closed, S1 open6470 50085 50050 20035 200µsµsµskbpsnsnsnsnsNote 1: All currents into the device are positive; all currents out of the device are negative. All voltages are referred to deviceground unless otherwise noted.Note 2: ∆V OD and ∆V OC are the changes in magnitude of V OD and V OC , respectively, when the DI input changes state.Note 3: Maximum and minimum current levels apply to peak current just prior to foldback-current limiting._______________________________________________________________________________________ 3
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MAX3471 1.6µA, RS-485/RS-422, Half-Duplex, Differential ... - Maxim

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