XL485-SS XINLUDA | Alldatasheet

Document overview

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Technical content

The x485 are low-power transceivers for RS-485 and RS- 422 communication. Each part contains one driver and one Receiver The driver slew rates of the x485 are not limited, allowing them to transmit up to 2.5Mbps. These transceivers draw between 120µA and 500µA of supply current when unloaded or fully loaded with disabled

Applications

Low-Power RS-485 Transceivers Low-Power RS-422 Transceivers Level Translators Transceivers for EMI-Sensitive Applications Industrial-Control Local Area Networks XL485-SS MSOP8 XL485CS XD485 RS-485/RS422 SOP8 DIP-8 ABSOLUTE MAXIMUM RATINGS Supply Voltage (V CC Control Input Voltage ( RE CC + 0.5V) CC + 0.5V) CC +0.5V) Continuous Power Dissipation (T A = +70°C) Operating Temperature Ranges DC ELECTRICAL CHARACTERISTICS CC = 5V ±5%, T A = T MIN to T MAX , unless otherwise noted.) (Notes 1, 2) Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress rating s only, and functional operation of the device at these or any other conditions beyond those indicated in the operational sections of the specificatio ns is not implied. Exposure to absolute maximum rating conditions for extended periods may affect device reliability. V V TH R = 27 Ω (RS-485), Figure 4 0.4V V O 2.4V R = 50 Ω (RS-422) I O = 4mA, V ID = -200mV I O = -4mA, V ID = 200mV V CM = 0V -7V V CM 12V DE, DI, RE DE, DI, RE DE, DI, RE R = 27 Ω or 50 Ω , Figure 4 R = 27 Ω or 50 Ω , Figure 4 R = 27 Ω or 50 Ω , Figure 4 CONDITIONS µA I OZR Three-State (high impedance) Output Current at Receiver V 0.4 V OL Receiver Output Low Voltage 3.5 V OH Receiver Output High Voltage mV V TH Receiver Input Hysteresis V -0.2 0.2 Receiver Differential Threshold Voltage 1.5 5 V OD2 Differential Driver Output (with load) V V V OD1 Differential Driver Output (no load) µA I IN1 Input Current V 0.8 V IL Input Low Voltage V 2.0 V IH Input High Voltage V 0.2 V OD Change in Magnitude of Driver Common-Mode Output Voltage for Complementary Output States V 0.2 V OD Change in Magnitude of Driver Differential Output Voltage for Complementary Output States V V OC Driver Common-Mode Output Voltage UNITS MIN TYP MAX SYMBOL PARAMETER

02 . 5 OUTPUT CURRENT vs. RECEIVER OUTPUT LOW VOLTAGE MAX481-01 OUTPUT LOW VOLTAGE (V) OUTPUT CURRENT (mA) 1.5 0.5 1.0 2.0 0.9 0.1 -50 -25 25 75 RECEIVER OUTPUT LOW VOLTAGE vs. TEMPERATURE 0.3 0.7 TEMPERATURE ( OUTPUT LOW VOLTAGE (V) 05 0 0.5 0.8 0.2 0.6 0.4 100 125 MAX481-04 I RO = 8mA -20 1.5 2.0 3.0 5.0 OUTPUT CURRENT vs. RECEIVER OUTPUT HIGH VOLTAGE -16 MAX481-02 OUTPUT HIGH VOLTAGE (V) OUTPUT CURRENT (mA) 2.5 4.0 -12 -18 -14 -10 3.5 4.5 4.8 3.2 -50 -25 25 75 RECEIVER OUTPUT HIGH VOLTAGE vs. TEMPERATURE 3.6 4.4 TEMPERATURE ( OUTPUT HIGH VOLTAGE (V) 05 0 4.0 4.6 3.4 4.2 3.8 3.0 100 125 MAX481-03 I RO = 8mA 01 . 0 3 . 04 . 5 DRIVER OUTPUT CURRENT vs. DIFFERENTIAL OUTPUT VOLTAGE MAX481-05 DIFFERENTIAL OUTPUT VOLTAGE (V) OUTPUT CURRENT (mA) 2.0 4.0 0.5 1.5 2.5 3.5 2.3 1.5 -50 -25 25 125 DRIVER DIFFERENTIAL OUTPUT VOLTAGE vs. TEMPERATURE 1.7 2.1 MAX481-06 TEMPERATURE ( DIFFERENTIAL OUTPUT VOLTAGE (V) 07 5 1.9 2.2 1.6 2.0 1.8 100 2.4 R = 54 Ω Typical Operating Characteristics CC = 5V, T A = +25°C, unless otherwise noted.) NOTES FOR ELECTRICAL/SWITCHING CHARACTERISTICS Note 1: All currents into device pins are positive; all currents out of device pins are negative. All voltages are referenced to device ground unless otherwise specified. Note 2: All typical specifications are given for V CC = 5V and T A = +25°C. Note 3: Supply current specification is valid for loaded transmitters when DE = 0V. Note 4: Applies to peak current. See Typical Operating Characteristics. XL485-SS MSOP8 XL485CS XD485 RS-485/RS422 SOP8 DIP-8

Typical Operating Characteristics (continued) CC = 5V, T A = +25°C, unless otherwise noted.) 120 OUTPUT CURRENT vs. DRIVER OUTPUT LOW VOLTAGE 100 MAX481-07 OUTPUT LOW VOLTAGE (V) OUTPUT CURRENT (mA) 140 -120 -7 -5 -1 5 OUTPUT CURRENT vs. DRIVER OUTPUT HIGH VOLTAGE -20 -80 MAX481-08 OUTPUT HIGH VOLTAGE (V) OUTPUT CURRENT (mA) -3 1 -60 -6 -4 -2 0 2 4 -100 -40 100 -50 -25 50 100 485 SUPPLY CURRENT vs. TEMPERATURE 300 MAX481-11 TEMPERATURE ( SUPPLY CURRENT ( µ 25 75 500 200 600 400 125 485; DE = V CC , RE = X 485; DE = 0, RE = X, Pin Description µ MAX DIP/SOP MSOP Receiver Output Enable. RO is enabled when RE is low; RO is high impedance when RE is high. Driver Output Enable. The driver outputs, Y and Z, are enabled by bringing DE high. They are high impedance when DE is low. If the driver outputs are enabled, the parts function as line drivers. While they are high impedance, they function as line receivers if RE is low. Driver Input. A low on DI forces output Y low and output Z high. Similarly, a high on DI forces output Y high and output Z low. Ground Noninverting Driver Output Inverting Driver Output Noninverting Receiver Input and Noninverting Driver Output Noninverting Receiver Input RE DE DI GND Y Z A A B Inverting Receiver Input and Inverting Driver Output B Inverting Receiver Input V CC Positive Supply: 4.75V V CC 5.25V N.C. No Connect—not internally connected FUNCTION NAME Receiver Output: If A > B by 200mV, RO will be high; If A < B by 200mV, RO will be low. RO PIN FUNCTION NAME 485 XL485-SS MSOP8 XL485CS XD485 RS-485/RS422 SOP8 DIP-8

NOTE: PIN LABELS Y AND Z ON TIMING, TEST, AND WAVEFORM DIAGRAMS REFER TO PINS A AND B WHEN DE IS HIGH. TYPICAL OPERATING CIRCUIT SHOWN WITH DIP/SO PACKAGE. V CC GND DI DE RE RO R D Rt Rt D R DE RE DI RO A B V CC B A GND DI DE RE RO DIP/SO R D V CC A GND DE RE B RO µ MAX B A DI

485 Pin Configuration and Typical Operating Circuit

t R , t F < 6ns D R 100pF B 100pF A RECEIVER OUT R = 54 Ω Z Y 500mV/div 20ns/div A B RO 2V/div V CC = 5V T A = +25 C 500mV/div 20ns/div A B RO 2V/div V CC = 5V T A = +25 C Receiver Propagation Delay Test Circuit 485 Receiver t PHL 485 Receiver t PLH XL485-SS MSOP8 XL485CS XD485 RS-485/RS422 SOP8 DIP-8