SN65HVD75DR

SN65HVD75DR FEATURES ➢ 3.0V~5.5V Wide Power Range, Half-Duplex ➢ ESD Protection for RS-485 I/O Pins ±15kV, Human Body Model ➢ Bus Fault Tolerance and Withstand Voltage Reach ±15V ➢ Driver Short-Circuit Output Protection ➢ Low Power Off Function ➢ Receiver Open-Circuit Failure Protection ➢ Strong Anti-Noise Ability ➢ Integrated Transient Voltage Suppression Function ➢ Data transmission up to 20Mbps in an electric noise SOP-8 SOP-8 environment ➢ provides small shape DFN3*3-8/HVSON8,MSOP8/VSSOP8, etc DESCRIPTION SN65HVD75 is a RS-485 transceiver with 3.0V~5.5V wide power supply, bus port ESD protection capacity of over 15kV HBM, bus withstand voltage range of ±15V, half duplex, low power consumption, and fully meet the requirements of TIA / EIA-485 standard. SN65HVD75 includes a driver and a receiver, both of which can be enabled and closed independently. When both are disabled, both the driver and the receiver output are high resistance state. It can realize error-free data transmission up to 20Mbps. SN65HVD75 has a working voltage range of 3.0~5.5V, and has the functions of fail safe, over temperature protection, current-limiting protection, over-voltage protection, etc. PIN CONFIGURATION SN65HVD75 RO R VCC RE B DE A DI D GND Figure 1 SN65HVD75 Pin Configuration www.tokmas.com SN65HVD75DR LIMITING VALUES PARAMETER SYMBOL VALUE UNIT Supply voltage VCC +7 V Control Input Voltage /RE，DE，DI -0.3~VCC+0.5 V Receiver Input Voltage A，B -15~+15 V Receiver Output Voltage RO -0.3~VCC+0.5 V Operating Temperature Ranges -40~125 ℃ Storage Temperature Range -60~150 ℃ Lead Temperature 300 ℃ The maximum limit parameters means that exceeding these values may cause irreversible damage to the device. Under these conditions, it is not conducive to the normal opration of the device. The continuous operation of the device at the maximum allowable rating may affect the reliability of the device. The reference point for all voltages is ground. PINNING PIN SYMBOL DESCRIPTION 1 RO Receiver Output. When /RE is low and if A - B≥-10mV, RO will be high; if A - B≤-200mV, RO will be low. 2 /RE Receiver Output Enable. Drive /RE low to enable RO; RO is high impedance when /RE is high. Drive /RE high and DE low to enter low-power shutdown mode. DE Driver Output Enable. Drive DE high to enable driver outputs. These outputs are high impedance when DE is low.Drive /RE high and DE low to enter low-power shutdown mode. 4 DI Driver Input. With DE high, a low on DI forces non-inverting output low and inverting output high. Similarly, a high on DI forces non-inverting output high and inverting output low. 5 GND 6 A non-inverting Receiver Input and non-inverting Driver Output 7 B Inverting Receiver Input and Inverting Driver Output 8 VCC 3 Ground Positive Supply www.tokmas.com SN65HVD75DR DRIVER DC ELECTRICAL CHARACTERISTICS PARAMETER SYMBOL Differential Driver Output（No load） CONDITION MIN. VOD1 TYP. 2.5 Figure 2，RL = 54 Ω， VCC=3.3V 1.5 Figure 2，RL = 54 Ω， VCC=5V 1.5 1.8 MAX. UNIT 5.5 V VCC Differential Driver Output VOD2 Change in Magnitude of Driver Differential Output Voltag（NOTE1） ∆VOD Figure 2，RL = 54 Ω 0.2 V Driver Common-Mode Output Voltage VOC Figure 2，RL = 54 Ω 3 V Change in Magnitude of Common-Mode Output Voltage（NOTE1） ∆VOC Figure 2，RL = 54 Ω 0.2 V Input High Voltage VIH DE，DI，/RE Input Low Voltage VIL DE，DI，/RE Logic Input Current IIN1 DE，DI，/RE Output short-circuit current, short-circuit to high IOSD1 short-circuit to 0V~12V Output short-circuit current, short-circuit to low IOSD2 short-circuit to -7V~0V V 3 VCC 2.0 V -2 0.8 V 2 μA 250 mA mA -250 （Unless otherwise noted，Temp=TMIN~TMAX， Temp＝25℃） NOTE1：∆VOD and ∆VOC are the changes in VOD and VOC, respectively, when the DI input changes state. RECEIVER DC ELECTRICAL CHARACTERISTICS PARAMETER Input current（A，B） SYMBOL IIN2 CONDITION MIN. DE = 0 V， VCC=0 或 5V VIN = 12 V DE = 0 V， VCC=0 或 5V VIN = -7 V -800 www.tokmas.com TYP. MAX. UNIT 500 1000 μA -300 μA SN65HVD75DR Positive input threshold voltage VIT+ -7V≦VCM≦12V Reverse input threshold voltage VIT- -7V≦VCM≦12V -200 Input hysteresis voltage Vhys -7V≦VCM≦12V 10 Receiver Output High Voltage VOH IOUT = −2.5mA， VID = +200 mV VCC-1.5 Receiver Output Low Voltage VOL IOUT = +2.5mA， VID = -200 mV 0.4 V Three-State Output Current at Receiver IOZR 0.4 V < VO < 2.4 V ±1 μA Receiver Input Resistance RIN -7V≦VCM≦12V 96 Receiver Short-Circuit Output Current IOSR 0 V≤VO≤VCC ±8 -10 mV mV 30 mV V kΩ ±90 mA TYP. MAX. UNIT /RE=0V， DE = 0 V， VCC=3.3V 240 650 μA /RE=0V， DE = 0 V VCC=5V 270 750 μA /RE=VCC， DE=VCC， VCC=3.3V 360 650 μA /RE=0V， DE = 0 V， VCC=5V 400 750 μA /RE=VCC， DE=0V， VCC=3.3V 0.2 10 μA /RE=VCC， DE=0V， VCC=5V 0.2 10 μA （Unless otherwise noted， Temp=TMIN~TMAX，Temp＝25℃） SUPPLY CURRENT PARAMETER SYMBOL ICC1 Supply Current ICC2 Shutdown current ISHDN CONDITION MIN. www.tokmas.com SN65HVD75DR DRIVER SWITCHING CHARACTERISTICS PARAMETER SYMBOL Driver differential Output delay tDD Driver differential output Transition time tTD Drive propagation delay From low to high tPLH CONDITION MIN. RL = 60 Ω, CL1=CL2=100pF (figure3、4) RL = 27 Ω, (figure3、4) TYP. MAX. UNIT 15 32 ns 9 20 ns 18 40 ns 18 40 ns 2 6 ns 16 45 ns 16 45 ns 22 85 ns 22 85 ns Drive propagation delay From high to low tPHL |tPLH-tPHL| tPDS Driver Enable to Output High tPZH Driver Enable to Output low tPZL Driver Disable Time from Low tPLZ Driver Disable Time from high tPHZ In Shutdown mode， Enable to Output High tDSH RL = 110Ω， （figure 5、6） 20 100 ns In Shutdown mode， Enable to Output low tDSL RL = 110Ω， （figure 5、6） 20 100 ns RL = 110Ω， （figure5、6） RL = 110Ω， （figure 5、6） RECEIVER SWITCHING CHARACTERISTICS PARAMETER SYMBOL Receiver Input to output from low to high tRPLH Receiver Input to output from high to low tRPHL CONDITION MIN. TYP. MAX. UNIT 35 60 ns 35 60 ns CL=15pF Figure7 & Figure8 www.tokmas.com SN65HVD75DR |tRPLH − tRPHL| tRPDS 3 8 ns Receiver Enable to Output Low tRPZL CL=15pF Figure7& Figure 8 16 30 ns Receiver Enable to Output high tRPZH CL=15pF Figure7 & Figure8 16 30 ns Receiver Disable Time from Low tPRLZ CL=15pF Figure7 & Figure8 30 50 ns Receiver Disable Time from high tPRHZ CL=15pF Figure7 & Figure8 30 50 ns In Shutdown mode， Enable to Output High tRPSH CL=15pF Figure7 & Figure8 150 500 ns In Shutdown mode， Enable to Output low tRPSL CL=15pF Figure7 & Figure8 150 500 ns Time to Shutdown tSHDN NOTE2 300 ns 50 NOTE2： If the enable inputs are RE=high and DE=low for less than 50ns, the device is guaranteed not to enter shutdown. If the enable inputs are in this state for at least 300ns, the device is guaranteed to have entered shutdown. FUNCTION TABLE Driver Function CONTROL INPUT Receiver Function OUTPUT CONTROL INPUT OUTPUT /RE DE DI A B /RE DE A-B RO X 1 1 H L 0 X ≥-10mV H X 1 0 L H 0 X ≤-200mV L 0 0 X Z Z 0 X Open/short circuit H 1 0 X Z(shutdown) 1 X X Z X=irrelevant; Z=high impedance X=irrelevant; Z=high impedance www.tokmas.com SN65HVD75DR TEST CIRCUIT Figure 2 Driver DC test load CL includes probe and stray capacitance (the same below) Figure 3 Differential delay and transit time of driver Figure 4 Drive propagation delay www.tokmas.com SN65HVD75DR Figure 5 Drive enable and disable time Figure 6 Drive enable and disable time www.tokmas.com SN65HVD75DR Figure 7 Receiver propagation delay test circuit Figure 8 Receiver enable and disable time www.tokmas.com SN65HVD75DR ADDITIONAL DESCRIPTION 1 Sketch SN65HVD75 is a half-duplex high-speed transceiver with 3.0V~5.5V wide power supply, bus port ESD protection capacity of more than 15kV HBM, bus DC withstand voltage of more than ±15V, used for RS-485/RS-422 communication, including a driver and receiver. It has the functions of fail-safe, over-voltage protection, over-current protection and over temperature protection. SN65HVD75 realizes error-free data transmission up to 20Mbps. 2 Driver output protection Overcurrent and overvoltage protection mechanisms are used to prevent excessive output current and power consumption caused by faults or bus conflicts. Fast short-circuit protection is provided throughout the common mode voltage range (refer to typical operating characteristics). 3 Typical Applications 3.1Bus Networking: SN65HVD75 RS485 transceiver is designed for bidirectional data communication on multi-point bus transmission line. Figure 9 shows a typical network application circuit. These devices can also be used as linear repeaters with cables longer than 4000 feet. In order to reduce reflection, terminal matching should be carried out at both ends of the transmission line with its characteristic impedance, and the length of branch lines outside the main line should be as short as possible. Figure 9 Bus type RS485 half duplex communication network www.tokmas.com SN65HVD75DR 3.2 Hand in hand Networking: also known as daisy chain topology, is the standard and specification of RS485 bus wiring, and is the RS485 bus topology recommended by TIA and other organizations. The wiring mode is that the main control equipment and a plurality of slave control equipment form a hand-held connection mode, as shown in Figure 10, and the hand-held mode is no branches. This wiring mode has the advantages of small signal reflection and high communication success rate. RO RE DI DE 120Ω DE A DI SN 65HVD75 120Ω VCC B VCC B R A GND RE RO SN 65HVD75 R D SN 65HVD75 VCC B RE A GND D RO R GND VCC B A GND DI D Slave N SN 65HVD75 R D SN 65HVD75 R D Slave1 VCC B A GND Master DE Slave 2 RE RO DI DE RE RO DI DE Figure10 Hand in hand RS485 half duplex communication network 3.3 Bus port protection: in severe environment, RS485 communication port is usually provided with electrostatic protection, lightning surge protection and other additional protection, and even the plan to prevent 380V market electricity access is needed to avoid the damage of intelligent instrument and industrial control host. Figure 11 shows three common RS485 bus port protection schemes. The first is the scheme of three-level protection by connecting TVS devices in parallel with A,B port to the protective ground, TVS devices in parallel with A,B port, thermistor in series with A,B port, gas discharge tube in parallel to the protective ground; the second is the scheme of three-level protection by connecting TVS in parallel with A,B port to the ground, thermistor in series with A,B port, and varistor in parallel with A,B port; the third is the scheme of three-level protection by connecting AB with pull-up or pull-down resistor to power and ground respectively, connecting TVS between A & B, A or B port connecting thermistor. SN 65HVD75 PTC1 RE VCC B DE A RO DI R D TVS1 GDT TVS3 GND TVS2 Master or Slave PTC2 PE SN 65HVD75 SN 65HVD75 TVS1 RO R RE VCC B DI CK A DE D Master or Slave GND PTC1 TVS2 RE VCC B DE A RO PTC1 R DI D GND Master or Slave Figure 11 Port protection scheme www.tokmas.com PTC1 TVS1 SN65HVD75DR SOP8 DIMENSIONS PACKAGE SIZE SYMBOL MIN./mm TYP./mm MAX./mm A 1.50 1.60 1.70 A1 0.1 0.15 0.2 A2 1.35 1.45 1.55 b 0.355 0.400 0.455 D 4.800 4.900 5.00 E 3.780 3.880 3.980 E1 5.800 6.000 6.200 e 1.270BSC L 0.40 0.60 0.80 c 0.153 0.203 0.253 θ -2° -4° -6° www.tokmas.com SN65HVD75DR MSOP8 /8μMAX / VSSOP8 DIMENSIONS PACKAGE SIZE SYMBOL MIN./mm TYP./mm MAX./mm A 2.90 3.0 3.10 A1 0.28 0.35 A2 0.65TYP A3 0.375TYP B 2.90 3.0 B1 4.70 5.10 B2 0.45 0.75 C 0.75 0.95 C1 3.10 1.10 C2 0.328 TYP C3 0.152 C4 0.15 0.23 H 0.00 0.09 θ 12°TYP www.tokmas.com SN65HVD75DR DIP8 DIMENSIONS Package size SYMBOL MIN./mm TYP./mm MAX./mm A 9.00 9.20 9.40 A1 0.33 0.45 0.51 A2 2.54TYP A3 1.525TYP B 8.40 8.70 9.10 B1 6.20 6.40 6.60 B2 7.32 7.62 7.92 C 3.20 3.40 3.60 C1 0.50 0.60 0.80 C2 3.71 4.00 4.31 D 0.20 0.28 0.36 L 3.00 3.30 3.60 www.tokmas.com SN65HVD75DR HVSON8/DFN3*3 DIMENSIONS PACKAGE SIZE SYMBOL MIN./mm A 0.700 A1 0.000 A3 TYP./mm MAX./mm 0.900 0.02 0.050 0.203 REF D 2.900 3.000 3.100 E 2.900 3.000 3.100 D1 2.200 2.3 2.400 E1 1.400 1.5 1.600 b 0.2 0.25 0.33 e L 0.65 TYP 0.250 0.575 ORDERING INFORMATION TYPE NUMBER TEMPERATURE PACKAGE SN65HVD75DR -40℃~125℃ SOP8 SN65HVD75DGK -40℃~125℃ MSOP8/VSSOP8/8μMAX SN65HVD75P -40℃~125℃ DIP8 SN65HVD75ETK -40℃~125℃ HVSON8/DFN3*3-8 Tapered package is 2500 pcs/reel. The HVSON8/DFN3*3-8 package is 5000 pcs/reel. www.tokmas.com