SP1485EMN-L/TR

Is Now A Part Of Visit www.maxlinear.com for more information about MaxLinear Inc. SP1481E/SP1485E Enhanced Low Power Half-Duplex RS-485 Transceivers ■ +5V Only ■ Low Power BiCMOS ■ Driver/Receiver Enable for Multi-Drop configurations ■ Low Power Shutdown Mode (SP1481E) ■ Enhanced ESD Specifications: +15KV Human Body Model +15KV IEC61000-4-2 Air Discharge Now Available in Lead Free Packaging description The SP1481E and the SP1485E are a family of half-duplex transceivers that meet the specifications of RS-485 and RS-422 serial protocols with enhanced ESD performance. The ESD tolerance has been improved on these devices to over +15KV for both Human Body Model and IEC61000-4-2 Air Discharge Method. These devices are pin-to-pin compatible with Exar's SP481 and SP485 devices as well as popular industry standards. As with the original versions, the SP1481E and the SP1485E feature Exar's BiCMOS design allowing low power operation without sacrificing performance. The SP1481E and SP1485E meet the requirements of the RS-485 and RS-422 protocols up to 20Mbps under load. The SP1481E is equipped with a low power Shutdown mode. Exar Corporation 48720 Kato Road, Fremont CA, 94538 • 510-668-7017 • www.exar.com  SP1481E-1485E_103_052413 ABSOLUTE MAXIMUM RATINGS Output Voltages Logic.............................................-0.3V to (VCC+0.5V) Drivers................................................................ ±15V Receivers......................................-0.3V to (VCC+0.5V) Storage Temperature.....................................................-65˚C to +150˚C These are stress ratings only and functional operation of the device at these ratings or any other above those indicated in the operation sections of the specifications below is not implied. Exposure to absolute maximum rating conditions for extended periods of time may affect reliability. VCC..............................................................................+7V Power Dissipation per Package 8-pin NSOIC (derate 6.60mW/oC above +70oC).........................550mW Input Voltages Logic...................................................-0.3V to (VCC+0.5V) Drivers................................................-0.3V to (VCC+0.5V) Receivers................................................................. ±15V ELECTRICAL CHARACTERISTICS TMIN to TMAX and VCC = 5V ± 5% unless otherwise noted. PARAMETERS SP1481E/SP1485E driver DC Characteristics Differential Output Voltage Differential Output Voltage Differential Output Voltage Change in Magnitude of Driver Differential Output Voltage for Complimentary States Driver Common-Mode Output Voltage Input High Voltage Input Low Voltage Input Current Driver Short-Circuit Current VOUT = HIGH VOUT = LOW MIN. TYP. MAX. UNITS CONDITIONS 3.5 2 1.5 VCC VCC VCC Volts Volts Volts Unloaded; R = ∞; see Figure 1 with load; R = 50Ω; (RS-422); see Figure 1 with load; R = 27Ω; (RS-485);see Figure 1 0.2 Volts R = 27Ω or R = 50Ω; see Figure 1 2.0 3 0.8 ±10 ±250 Volts Volts Volts μA mA R = 27Ω or R = 50Ω; see Figure 1 Applies to DE, DI, RE Applies to DE, DI, RE Applies to DE, DI, RE ±250 mA ‑7V ≤ VO ≤ +12V ‑7V ≤ VO ≤ +12V SP1481E/SP1485E driver AC Characteristics Maximum Data Rate 20 Mbps Driver Input to Output 20 30 ns Driver Input to Output 20 40 ns (SP1485EMN ONLY) RE = 5V, DE = 5V; RDIFF = 54Ω, CL1 = CL2 = 100pF tPLH; RDIFF = 54Ω, CL1 = CL2 = 100pF; see Figures 3 and 5 tPLH; RDIFF = 54Ω, CLI = CL2 = 100pF; See Figures 3 and 5 Driver Input to Output 20 30 ns Driver Input to Output 20 40 ns (SP1485EMN ONLY) Driver Skew 3 5 ns Driver Rise or Fall Time 8 20 ns Driver Enable to Output High 40 70 ns Driver Enable to Output Low 40 70 ns Driver Disable Time from Low 40 70 ns Driver Disable Time from High 40 70 ns tPHL; RDIFF = 54Ω, CL1 = CL2 = 100pF; see Figures 3 and 5 tPHL; RDIFF = 54Ω, CL1 = CL2 = 100pF; see Figures 3 and 5 see Figures 3 and 5, tSKEW = | tPLH - tPHL | From 10% to 90%; RDIFF = 54Ω, CL1 = CL2 = 100pF; see Figures 3 & 6 CL = 100pF; see Figures 4 & 6; S2 closed CL = 100pF; see Figures 4 & 6; S1 closed CL = 100pF; see Figures 4 & 6; S1 closed CL = 100pF; see Figures 4 & 6; S2 closed Exar Corporation 48720 Kato Road, Fremont CA, 94538 • 510-668-7017 • www.exar.com  SP1481E-1485E_103_052413 SPECIFICATIONS (continued) TMIN to TMAX and VCC = 5V ± 5% unless otherwise noted PARAMETERS MIN. TYP. MAX. UNITS CONDITIONS Differential Input Threshold -0.2 +0.2 Volts ‑7V ≤ VCM ≤ +12V Differential Input Threshold -0.4 +0.4 Volts ‑7V ≤ VCM ≤ +12V SP1481E/SP1485E RECEIVER DC Characteristics (SP1485EMN ONLY) Input Hysteresis 20 mV VCM = 0V Output Voltage High 3.5 Volts IO = ‑4mA, VID = +200mV Output Voltage Low 0.4 Volts IO = +4mA, VID = ‑200mV 0.4V ≤ VO ≤ 2.4V; RE = 5V Three-State (High Impedance) Output Current ±1 µA 12 15 kΩ ‑7V ≤ VCM ≤ +12V Input Current (A, B); VIN = 12V +1.0 mA DE = 0V, VCC = 0V or 5.25V, VIN = 12V Input Current (A, B); VIN = -7V -0.8 mA DE = 0V, VCC = 0V or 5.25V, VIN = -7V 95 mA 0V ≤ VO ≤ VCC Mbps RE = 0V, DE = 0V Input Resistance Short-Circuit Current 7 SP1481E/SP1485E RECEIVER AC Characteristics Maximum Data Rate Receiver Input to Output 20 25 70 ns Receiver Input to Output 25 70 ns Diff. Receiver Skew ItPLH-tPHLI 5 10 45 Output High Receiver Disable from Low tPLH; RDIFF = 54Ω, CL1 = CL2 = 100pF; Figures 3 & 7 tPHL; RDIFF = 54Ω, CL1 = CL2 = 100pF; Figures 3 & 7 ns RDIFF = 54Ω; CL1 = CL2 = 100pF; Figures 3 & 7 70 ns CRL = 15pF; Figures 2 & 8; S1 closed 45 70 ns CRL = 15pF; Figures 2 & 8; S2 closed 45 70 ns CRL = 15pF; Figures 2 & 8; S1 closed Receiver Disable from High 45 70 ns CRL = 15pF; Figures 2 & 8; S2 closed Receiver Enable to Output Low Receiver Enable to SP1481E Shutdown Timing Time to Shutdown 50 200 600 ns RE = 5V, DE = 0V 40 100 ns CL = 100pF; See Figures 4 & 6; S2 closed 40 100 ns CL = 100pF; See Figures 4 & 6; S1 closed 300 1000 ns CL = 15pF; See Figures 2 & 8; S2 closed 300 1000 ns CL = 15pF; See Figures 2 & 8; S1 closed Driver Enable from Shutdown to Output High Driver Enable from Shutdown to Output Low Receiver Enable from Shutdown to Output High Receiver Enable from Shutdown to Output Low POWER REQUIREMENTS Supply Voltage +4.75 +5.25 Supply Current Volts No Load 900 μA RE, DI = 0V or VCC; DE = VCC 600 μA RE = 0V, DI = 0V or 5V; DE = 0V SP1481E/1485E SP1481E Shutdown Mode 10 μA DE = 0V, RE=VCC environmental and mechanical Operating Temperature Commercial (_C_) 0 +70 °C Industrial (_E_) -40 +85 °C (_M_) -40 +125 °C Storage Temperature -65 +150 °C Package NSOIC (_N) Exar Corporation 48720 Kato Road, Fremont CA, 94538 • 510-668-7017 • www.exar.com  SP1481E-1485E_103_052413 Pin function Pin 1 – RO – Receiver Output. Pin 2 – RE – Receiver Output Enable Active LOW. Pin 3 – DE – Driver Output Enable Active HIGH. Pin 4 – DI – Driver Input. Pin 5 – GND – Ground Connection. Pin 6 – A – Driver Output/Receiver Input Non-inverting. Pin 7 – B – Driver Output/Receiver Input Inverting. Pin 8 – Vcc – Positive Supply 4.75V