L9615 ® CAN BUS TRANSCEIVER L9615 MEETS ISO/DIS 11898 UP TO 500KBAUD TRANSMITTER - GENERATION OF DIFFERENTIAL OUTPUT SIGNALS - SHORT CIRCUIT PROTECTED FROM -5V TO 36V, DETECTION & SHUTDOWN - SLOPE CONTROL TO REDUCE RFI AND EMI - TWO STATES ADJUSTABLE SLOPE CONTROL (≤500KBAUD/≤125KBAUD) RECEIVER - DIFFERENZIAL INPUT WITH HIGH INTERFERENCE SUPPRESSION - COMMON MODE INPUT VOLTAGE RANGE (VCOM) FROM -2V TO VS+3V PACKAGE: SO 8 SO8 ORDERING NUMBER: L9615D conditioning and processing in connection with a CAN controller. Data rates of up to 500KBAUD are supported using either shielded or nonshielded pair of lines. DESCRIPTION The L9615 is a bidirectional transceiver for signal BLOCK DIAGRAM 3 1 TX0 & VS td 1 ≥1 1 & ASC RX0 RX1 8 4 7 + VS - 1 6 1 5 M VREF C_L + VCLmax M M 2 RECEIVER C_H PROTECTION GND TRANSMITTER D96AT245 September 2013 1/8 L9615 ABSOLUTE MAXIMUM RATINGS Symbol Value Unit Supply Voltage Parameter -0.3 to 7 V VC_H, VC_L IC_H, IC_L Bus Voltage at C_H, C_L (VS 0 to 5.5V) -5 to 36 V Off State Leakage Current at C_H, C_L ( VS =0 to 5.5V, VC_H = -5 to 36V, VC_L = -5 to 36 ) -3 to 5 mA VDC DC Voltage at TXO, ASC (VS 0 to 5.5V) VS IRXO Tstg, TJ Top GND -0.3 to VS +0.3 V Output Current at RXO (VS 0 to 5.5V) Storage and Junction Temperature Range -0.3 to 1 -40 to 150 mA °C Operating Temperature Range -40 to 110 °C Value Unit All voltages, except bus voltage, are defined with respect to pin 2 Positive currents flow into the IC. PIN CONNECTION TX0 1 8 ASC GND 2 7 C_H VS 3 6 C_L RX0 4 5 RX1 D96AT246 THERMAL DATA Symbol Parameter PIN FUNCTIONS N. 2/8 Name Function 1 TXO Transmitter Input 2 3 GND VS Ground Supply Voltage 4 5 RXO RX1 Receive Output Reference Voltage 6 C_L Low Side Bus Output 7 8 C_H ASC High Side Bus Output Adjustable Slope Control L9615 ELECTRICAL CHARACTERISTICS (TOP = -40 to 110°C; VS = 4.5 to 5.5V; Dominat: VTXO = GND; Recessive: VTXO = VS; All voltages, except bus voltage, are defined with respect to pin 2. Positive currents flow into the IC unless otherwise specified.) Symbol Parameter VS Supply Voltage IS Supply Current Test Condition Min. Typ. Max. 4.5 5 Unit 5.5 V Dominant 80 mA Recessive 20 mA TRANSMITTER SECTION (RA = 60Ω between C_H and C_L) CTXO VTXO TXO Input Capacitance TXO High Level Input Voltage 0V < VTXO < VS TXO Low Level Input Voltage ITXO CASC VASC VTXO = VS TXO Low Level Input Current VTXO = GND ASC Input Capacitance 0V < VASC < VS ASC Input Voltage for High Speed VC_H, VC_L IC_H, IC_L ASC Input Current Bus Voltage Recessive Leakage Current Recessive VASC = VS VASC = 0V Recessive VC_L = VC_H = -2 to 7V VC_L = VC_H = 1 to 4V pF VS 0 TXO High Level Input Current ASC Input Voltage for Low Speed IASC 25 0.7 VS 0.3 VS -2 0 2 µA -275 0 -25 µA 25 pF 0 0.1 VS 0.9 VS VS 275 µA -2 0 2 µA 0.4 VS -0.7 0.5 Vs 0.6 Vs 0.7 mA 25 -0.3 0.3 mA RIN(C_H, C_L) RDiff(C_H, C_L) Input Resistence Recessive 5 50 KΩ Differential Input Resistence Recessive 10 100 KΩ VDiff = VC_H - V C_L) VDiff = VC_H - V C_L) Differential Output Voltage Dominant, RA 1.5 3 V Differential Output Voltage Recessive -500 0 50 mV td Short Circuit Detection Time C_H to C_L ; C_H to B RCS < 1Ω 1 5 10 µs IA Supply Current in Case of Short Circuit, C_H to C_L, C_H to B (time = td) VC_Lmax 150 Overvoltage Protection Threshold on C_L 7 8 mA 10 V Vs V 0.5 V 900 mV 7 V RECEIVE SECTION VRXO VS = VC_H -VC_L VCOM = (VC_H +VC_L)/2 VHYS RXO High Level Output Voltage VDiff < 0.5V; IRXO = 0.3mA; VC_H = -2 to 7V; VC_L = -2 to 7V; RXO Low Level Output Voltage VDiff > 0.9V; IRXO = 1mA; VC_H = -2 to 7V; VC_L = -2 to 7V; Input Signal Threshold VC_H = -2 to 7V; VC_L = -2 to 7V; Input Common Mode Voltage Range 0.9 VS 500 700 -2 Differential Input Hysteresis 150 mV 0.45 VS 0.5 VS 0.55 VS 2 9 V KΩ REFERENCE OUTPUT VRX1 RRX1 Reference Voltage Output Resistance IRX1 = 0 3/8 L9615 DINAMIC CHARACTERISTICS (CA = 47pF between C_H and C_L; VS = 5V; tR < 5ns; CRXO = 20pF between RXO and B; RA = 60Ω between C_H and C_L) Symbol Parameter tOT Signal Delay TXO to C_H, C_L SR Differential Output Slew Rate (Transmitter) VASC = 0V VASC = VS Signal Delay C_H, C_L to RXO Signal Delay TXO to RXO tOR tOTR Test Condition Min. Typ. Max. ns 50 20 V/µs V/µs VASC = 0V 150 ns VASC = 0V 300 ns 20 5 modes of operation: High speed (≤500kBaud) and low speed (≤125kBaud). The ASC pin is tied to GND for normal operation at ≤500kBaud. For slower speed operation at ≤125kBaud the rise and fall slope of the bus output can be decreased to reduce EMI by connectingg the ASC pin to VS. FUNCTIONAL DESCRIPTION The L9615 is used as an interface between a CAN controller and the physical bus. The device provides transmitting capability to the CAN controller. The transmitter outputs C_H and C_L are protected against short circuits and electrical transients which may occur in an automotive environment. In case of short circuit (C_H to C_L, C_H to B) the protection circuit recognizes this fault conditionand the transmitter output stages are disabled with a delay of max. 10µs to prevent destruction of the IC and high consumption of supply current IS. If VC_L >VC_Lmax the transmitter output stages would be disabled immediately. Pin ASC makes it possible to select two different FUNCTIONAL TABLE TXO C_H C_L Bus State RXO L H L Dominant L H or Floating Floating VS/2 Floating VS/2 Recessive H TYPICAL APPLICATION VCOM RA VSn VSm SYSTEM n SYSTEM m CAN BUS CONTROLLER L9615 L9615 CONTROLLER VGNDn VGNDm C_H VGNDD RA VDiff VGNDm D96AT247A C_L 4/8 Unit 50 L9615 TIMING DIAGRAM tR tR VTX0 tOT tOT 0.9V VDiff 0.5V VRX0 tOR tOR D96AT248 tOTR tOTR EMC PERFORMANCE (RECEIVER) EQUIVALENT TERMINATING RESISTOR 2 x 120Ω PARALLEL AT LINE ENDS 6.8∝F 30Ω CAN CONTROLLER 1 250Kbit/sec CAN TRANSCELVER 1 50Ω 450Ω 30Ω Ust (Noise signal) MONITORING (BIT COMPARISON) 100Ω 40dB HP8640 CAN CONTROLLER 2 250Kbit/sec CAN TRANSCELVER 2 6.8∝F 90%AM, 1KHz UST (V) NOT NOISE RESISTANT 30VSS L9615 NOISE RESISTANT 20VSS min. request boundary (automotive industry) 10VSS 1MHz 10MHz 100MHz 500MHz 1GHz D96AT249B 5/8 L9615 EMC PERFORMANCE (TRANSMITTER) 4.7nF 50Ω VS +5V 80dBµF equivalent terminating resistor 2 x 120Ω parallel at line ends TX0 GND C_H 30Ω C_L 30Ω 4.7nF 50Ω µV TEK495 Analyzer D96AT250 Transceiver Without Emc Reducing Measures D96AT251 80 Transceiver With Emc Reducing Measures D96AT252 10000 80 3162 70 1000 60 50 316.2 50 316.2 40 100 40 100 30 31.62 30 31.62 20 10 20 10 10 3.162 10 3.162 70 ATTENUATION OF TRANSMITTER 60 0 0 40 80 120 160 1 f(KHz) 3162 ATTENUATION OF TRANSMITTER 1000 0 0 40 80 120 10000 160 1 f(KHz) EMC PERFORMANCE (Transceiver Sending) equivalent terminating resistor 2 x 120Ω parallel at line ends TX0 50Ω +5V VS 5V 250KHz GND C_H 30Ω C_L 30Ω 4.7nF 50Ω µV TEK495 Analyzer D96AT253 Transceiver Without Emc Reducing Measures D96AT254 80 D96AT255 10000 80 70 3162 70 3162 60 1000 60 1000 50 316.2 50 316.2 40 100 40 100 30 31.62 30 31.62 20 10 20 10 10 3.162 10 3.162 0 0 6/8 Transceiver With Emc Reducing Measures 40 80 120 160 1 f(KHz) 0 0 40 80 120 160 10000 1 f(KHz) L9615 mm DIM. MIN. TYP. A a1 inch MAX. MIN. TYP. 1.75 0.1 0.25 a2 MAX. 0.069 0.004 0.010 1.65 0.065 a3 0.65 0.85 0.026 0.033 b 0.35 0.48 0.014 0.019 b1 0.19 0.25 0.007 0.010 C 0.25 0.5 0.010 0.020 c1 45° (typ.) D (1) 4.8 5.0 0.189 0.197 E 5.8 6.2 0.228 0.244 e 1.27 0.050 e3 3.81 0.150 F (1) 3.8 4.0 0.15 0.157 L 0.4 1.27 0.016 0.050 M S OUTLINE AND MECHANICAL DATA 0.6 0.024 SO8 8 ° (max.) (1) D and F do not include mold flash or protrusions. Mold flash or potrusions shall not exceed 0.15mm (.006inch). 7/8 L9615 Please Read Carefully: Information in this document is provided solely in connection with ST products. STMicroelectronics NV and its subsidiaries (“ST”) reserve the right to make changes, corrections, modifications or improvements, to this document, and the products and services described herein at any time, without notice. All ST products are sold pursuant to ST’s terms and conditions of sale. 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