CAN Bus Driver and Receiver

Transcription

1 ishay Siliconix CAN Bus Driver and Receiver FEATURES Survives Ground Shorts and Transients on Multiplexed Bus in Automotive and Industrial Applications Single Power Supply Compatible with Intel CAN Controller Direct Interface No External Components Required Automotive Temperature Range ( 40 to 125 C) DESCRIPTION The Si9200EY is designed to interface between the Intel CAN controller and the physical bus to provide drive capability to the bus and differential receive capability to the controller. It is designed to absorb typical electrical transients on the bus which may occur in an automotive or industrial application, and protect itself against any abnormal bus conditions. The transmitter will be disabled during these conditions and will be re-enabled when the abnormal condition is cleared. The Si9200EY is built using the Siliconix BiC/DMOS process. This process supports CMOS, DMOS, and isolated bipolar transistors and uses an epitaxial layer to prevent latchup. The bus line pins are diode protected and can be driven beyond the to ground range. The Si9200EY is offered in the space efficient 8-pin high-density surface-mount plastic package and is specified over the automotive temperature range ( 40 to 125 C). The Si9200EY is available in lead free. PIN CONFIGURATION AND FUNCTIONAL BLOCK DIAGRAM SO Top iew Bus Ordering Information: Si9200EY-T1 Si9200EY-T1 E3 (Lead Free) 1

2 ishay Siliconix ABSOLUTE MAXIMUM RATINGS a Operating Temperature (T A ) to 125 C Junction and Storage Temperature to 150 C oltage On Any Pin (Except and ) with Respect to Ground to +0.3 oltage On and with Respect to Ground to +16 Supply oltage, to 12 Continuous Output Current ma Thermal Ratings b : R JA C/W (no airflow) Notes a. Extended exposure to the absolute maximum ratings or stresses beyond these ratings may affect device reliability or may cause permanent damage to the device. Functional operation at conditions other than the recommended operating conditions is not implied. b. Mounted on 1-IN 2, FR4 PC Board. RECOMMENDED OPERATING CONDITIONS to 5.25 Bus Load Resistance SPECIFICATIONS Input Parameter Symbol Test Conditions Unless Otherwise Specified Limits T A = 40 to 125 C = 4.75 to 5.25 Min b Typ a Max b Unit Input oltage High INH 4 Input oltage Low INL 1 Input Current Low I IL = Input Current High I IH = Output A R, R Bus Recessive DIF = = INH, R L = R R Bus Dominant D DIF = = INL, R L = 60 D D D Reference Output 25 A I 25 A I OUT = 10 A 0.3 = Receive Output t INH 2.0 (Bus Recessive Condi-, 7 H I 1 OUT = 100 A DD 1 tions) 0.5 (Bus Recessive) I OUT = 2 ma DD = INH I OUT = 10 A Receive Output 7 L I OUT = 100 A (Bus Dominant Conditions) (Bus Dominant) I OUT = 2 ma R IN, 5 50 BUS_L Internal Resistance from Bus Pins R IN, BUS_H 5 50 R DIFF = INH (Recessive) k Internal Capacitance from Bus Pins c C IN (, ) 50 pf 2

3 ishay Siliconix SPECIFICATIONS Dynamic Parameter Symbol Test Conditions Unless Otherwise Specified Limits T A = 40 to 125 C = 4.75 to 5.25 Min b Typ a Max b Unit to DIFF High to DIFF Low to Receive Low to Receive High Supply t ON 50 t OFF 50 t ON 120 t OFF 120 ns = INH, = 5.25, R L = 60 (Recessive) 25 Supply Current I DD = INL, = 5.25, R L = 60 (Dominant) ma Transient c Electrostatic Discharge Human Body Model ESD C L = 100 pf, R L = 1500 MIL-STD-883D, Method 3015 Bus Transient oltage TRANS R S = msec Protection Thermal Trip Point c T TRP Thermal Hysteresis c T HYS C Notes a. Typical values are for DESIGN AID ONLY at T A = 25 C, not guaranteed nor subject to production testing. b. The algebraic convention whereby the most negative value is a minimum and the most positive a maximum. c. Guaranteed by design, not subject to production test. TRUTH TABLE Mode Bus State Low Transmit Dominant High Low Low High (or Floating) Transmit and Receive Recessive Floating Floating High High (or Floating) Receive Recessive High Low Low 3

4 ishay Siliconix SWITCHING TIME TEST CIRCUIT t r, t f 10 ns 50% 5 0 R L = 60 C L 100 pf DIFF = CAN _ H CAN _ L 1 t ON- t OFF- 30 pf m 100 m 30 pf t ON- t OFF- CIRCUIT SCHEMATIC Mbit CAN Bus 120 Host Controller Fault 10 Current Limit Protection 2 Wire Twisted Pair (Shielded) Temp Sense Delay 4

5 Notice Legal Disclaimer Notice ishay Specifications of the products displayed herein are subject to change without notice. ishay Intertechnology, Inc., or anyone on its behalf, assumes no responsibility or liability for any errors or inaccuracies. Information contained herein is intended to provide a product description only. No license, express or implied, by estoppel or otherwise, to any intellectual property rights is granted by this document. Except as provided in ishay's terms and conditions of sale for such products, ishay assumes no liability whatsoever, and disclaims any express or implied warranty, relating to sale and/or use of ishay products including liability or warranties relating to fitness for a particular purpose, merchantability, or infringement of any patent, copyright, or other intellectual property right. The products shown herein are not designed for use in medical, life-saving, or life-sustaining applications. Customers using or selling these products for use in such applications do so at their own risk and agree to fully indemnify ishay for any damages resulting from such improper use or sale. Document Number: Revision: 08-Apr-05 1