E-L9637D013TR

L9637 Monolithic bus driver with ISO 9141 interface Features ■ Operating power supply voltage range 4.5 V  VS  36 V (40 V for transients) ■ Reverse supply (battery) protected down to VS  -24 V ■ Standby mode with very low current consumption ISSB 1 mA @ VCC 0.5 V ■ Low quiescent current in off condition ISOFF = 120 µA ■ TTL compatible TX input ■ ■ Bidirectional K-I/O pin with supply voltage dependent input threshold High input impedance for open VS or GND connection ■ ■ Overtemperature shut down function Selective to K-I/O pin Defined output ON status of LO or RX for open LI or K inputs ■ Defined K output OFF for TX input open ■ Wide input and output voltage range -24 V  VK  VS ■ Integrated pull up resistors for TX, RX and LO ■ EMI robustness optimized ■ K output current limitation, typ. IK = 60 mA ■ Defined OFF output status in undervoltage condition and VS or GND interruption ■ Controlled output slope for low EMI Table 1. SO8 Description The L9637 is a monolithic integrated circuit containing standard ISO 9141 compatible interface functions. Device summary Order code Package Packing L9637D SO8 Tube L9637D013TR SO8 Tape and reel SO8 Tube SO8 Tape and reel E-L9637D(1) E-L9637D013TR (1) 1. Device in ECOPACK® package (see Section 4: Package information on page 13). September 2013 Doc ID 1765 Rev 8 1/15 www.st.com 15 Contents L9637 Contents 1 2 Block diagram and pin description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 1.1 Block diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 1.2 Pin description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 Electrical specification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 2.1 Absolute maximum ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 2.2 Thermal data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 2.3 Electrical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 3 Functional description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 4 Package information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13 5 Revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14 2/15 Doc ID 1765 Rev 8 L9637 Block diagram and pin description 1 Block diagram and pin description 1.1 Block diagram Figure 1. Block diagram VCC VS RTX K IK RL O + OFF RRX TX 1,75V RX + LI LO + IL I GND 1.2 Pin description Figure 2. Table 2. Pin connection (top view) RX 1 8 LI LO 2 7 VS VCC 3 6 K TX 4 5 GND Pin description N. Name Function 1 RX Output for K as input 2 LO Output L comparator 3 VCC 4 TX 5 GND Common GND 6 K Bidirectional I/O 7 VS Supply voltage 8 LI Input L comparator Stabilized voltage supply Input for K as output Doc ID 1765 Rev 8 3/15 Electrical specification L9637 2 Electrical specification 2.1 Absolute maximum ratings Table 3. Absolute maximum ratings (No damage or latch) Symbol VS VCC VS/dt VLI, K Parameter Value Unit Supply voltage ISO transients t = 400 ms -24 to +36 -24 to +40 V Stabilized voltage -0.3 to +7 V Supply voltage transient -10 to +10 V/µs -24 to VS V -24 to VCC V Pin voltage VLO, RX, TX Note: Max. ESD voltages are ±2kV with human body model C = 100pF, R = 1.5k corresponds to maximum energy dissipation 0.2mJ according to MIL883C. 2.2 Thermal data Table 4. Thermal data Symbol Parameter Min. Typ. Max. Unit TJSDon Temperature K shutdown switch on threshold 160 - 200 °C TJSDoff Temperature K shutdown switch off threshold 150 - 200 °C Thermal steady state junction to ambient resistance 130 155 180 °C/W Rth j-amb 2.3 Electrical characteristics The electrical characteristics are valid within the below defined operating conditions, unless otherwise specified. The function is guaranteed by design until TJSDon temperature shutdown switch-on-threshold. Table 5. Symbol VS VCC Tj ICC 4/15 Electrical characteristics Parameter Supply voltage Test condition Min. Typ. Max. Unit 4.5 - 36 V 3 5 7 V -40 - 150 °C VCC  5.5 V; VLI,VTX = 0 V - 1.4 2.3 mA VK  VKhigh; VLI  VLIhigh VTX = VCC @ VCC  5.5 V -5 IO U T M IN IO U T > IO U T t M IN I O U T < IO U T M IN Doc ID 1765 Rev 8 11/15 Functional description Figure 8. L9637 EMS performance (ISO 9141 bus system) V S = 1 2V = 510 Ohm VS 50 Ohm TX K P ro b e IS O i n te rfa c e 4 0 dB R h o d e & S c h w a rtz P im a x = 5 W 0 .1 - 1 0 0 0 M H z 136 Ohm NAP - 73 S MG 1 0k H z 1 .5 n F 68 Ohm VS Pi D RX K IS O i n te rfa c e NAP Signal comparison 10% D£ 10% Δ≤± Figure 9. Input power vs. frequency diagram P i (m W ) n o t i n c id e n t p o w e r re s i s ta n t 10000 5000 in c id e n t p o w e r r e s is t a n t 1000 100 1 12/15 10 Doc ID 1765 Rev 8 100 1000 f (M H z) L9637 4 Package information Package information In order to meet environmental requirements, ST offers these devices in different grades of ECOPACK® packages, depending on their level of environmental compliance. ECOPACK® specifications, grade definitions and product status are available at: www.st.com. ECOPACK® is an ST trademark. Figure 10. SO8 mechanical data and package dimensions mm inch DIM. MIN. TYP. A MAX. MIN. TYP. 1.750 MAX. 0.0689 A1 0.100 0.250 0.0039 A2 1.250 0.0492 b 0.280 0.480 0.0110 0.0189 0.230 0.0067 0.0091 0.0098 c 0.170 D (1) 4.800 4.900 5.000 0.1890 0.1929 0.1969 E 5.800 6.000 6.200 0.2283 0.2362 0.2441 3.800 3.900 4.000 0.1496 0.1535 0.1575 (2) E1 e 1.270 0.0500 h 0.250 0.500 0.0098 L 0.400 1.270 0.0157 L1 k ccc 1.040 0˚ OUTLINE AND MECHANICAL DATA 0.0197 0.0500 0.0409 8˚ 0.100 0˚ 8˚ 0.0039 Notes: 1. Dimensions D does not include mold flash, protrusions or gate burrs. Mold flash, potrusions or gate burrs shall not exceed 0.15mm in total (both side). 2. Dimension “E1” does not include interlead flash or protrusions. Interlead flash or protrusions shall not exceed 0.25mm per side. SO-8 0016023 D Doc ID 1765 Rev 8 13/15 Revision history 5 L9637 Revision history Table 6. 14/15 Document revision history Date Revision Changes 24-Jan-2002 5 Initial release. 07-Nov-2008 6 Document reformatted. Added Table 1: Device summary on page 1. Updated Section 4: Package information on page 13. 15-Jun-2009 7 Updated the values of “stabilized voltage” and “transmission frequency” parameters on Table 5: Electrical characteristics. 20-Sep-2013 8 Updated disclaimer. Doc ID 1765 Rev 8 L9637 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. Purchasers are solely responsible for the choice, selection and use of the ST products and services described herein, and ST assumes no liability whatsoever relating to the choice, selection or use of the ST products and services described herein. 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