l9669 STMicroelectronics, l9669 Datasheet
l9669
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l9669 Summary of contents
Page 1
... FAULT TOLERANT CAN TRANSCEIVER ORDERING NUMBER: L9669 SUPPLIES DO NOT DISTURB THE BUS LINES DESCRIPTION The L9669 is an integrated circuit which contains a CAN physical line interface. It integrates all main lo- cal functions for automotive body electronic applica- tions connected to a CAN bus. +5V Voltage ...
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... L9669 Figure 2. Pin Connection top view. 99AT0002 Table 1. Pin Functions N° Pin 1 INH Inhibit Output - for switching external 5V Regulator 2 TXD Transmit Data Input - active LOW dominant Bit transmission 3 RXD Receive Data Output - active LOW dominant Bit reception 4 NERR Error/Diagnostic Output - active LOW error/Wake-up and Diagnostic output ...
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... bus errors TXD CC R < 4k RTH TXD I = -40mA CANH TXD CC R < 4k RTH L9669 Value Unit -0.3 to +28 V -0.3 to + -28 to + -55 to +150 o C -40 to +150 o C Min. Typ. Max. ...
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... L9669 Table 4. Electrical Characteristcs (continued 4.75V to 5.25V 28V Item Symbol Parameter 2.6 V CANL dominant output voltage CANLd 2.7 I CANH output current CANH 2.8 I CANL output current CANL 2.9 I CANH leakage current CANHl 2.10 I CANL leakage current CANLl 2.11 V CANH wake-up voltage CANHWK 2.12 V CANL wake-up voltage CANLWK 2 ...
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... Error 1.5V RTL CC Sleep/standby mode RTL , Sleep/standby mode I = 1mA RTH TXD TXD I = -0.18mA INH ) Not sleep mode INH Sleep mode. L9669 Min. Typ. Max. Unit - 0 0.9 0 0.9 V -200 ...
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... L9669 Table 4. Electrical Characteristcs (continued 4.75V to 5.25V 28V Item Symbol Parameter 7 Inputs NSTB, EN 7.1 V High level input voltage Xh 7.2 V Low level input voltage Xl 7.3 I High level input current Xh 7.4 I Low level input current Xl 8 Input WAKE 8.1 V WAKE high level input voltage WAKEh 8 ...
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... FUNCTIONAL DESCRIPTION The L9669 is a monolithic integrated circuit which provides all main functions for an automotive body CAN sys- tem. The device guarantees a clearly defined behavior in case of failure to avoid permanent CAN bus errors primarily intended for low speed applications in passenger cars. ...
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... L9669 Figure 3. NSTB = NSTB = Power on RX only NSTB = 0 Mode Mode NSTB EN INH 99AT0003 8/13 Standby Mode NSTB EN INH NSTB = NSTB = NSTB = 0 "Go to Sleep" Mode NSTB EN INH 0 1 Float. NSTB = Sleep Mode NSTB EN INH ...
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... Data are received on CANH or CANL after short circuit was detected. Error 10: Data are received normally, error is detected by protocol unit. Upon any error in normal or RXonly mode the NERR output will be forced LOW and released after error recovery. Type of Errors L9669 Severity ...
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... L9669 1.4 Diagnosis A serial interface is available to retrieve diagnostic informations. Diagnostic data can be requested by using EN as serial clock and evaluating NERR. Figure 4. NSTB EN Bus Error detected NERR Mode Normal (Example) Delay between falling slope at EN and reaction at NERR: 0.7 (NERR is synchronized with internal clock). ...
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... Transceiver 10 CANL 12 TXD 2 RTL RXD 9 3 NERR 4 NSTB GND INH VS VCC NSTB WAKE 7 TXD 2 11 NERR RXD GND 20pF L9669 KL30 (+12V) Voltage Regulator +5V CAN Controller RTL CANL C 2 CANH RTH 11/13 ...
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... L9669 mm DIM. MIN.. TYP. MAX.. MIN.. A 1.75 a1 0.1 0.25 0.004 a2 1.6 b 0.35 0.46 0.014 b1 0.19 0.25 0.007 C 0.5 c1 45˚ (typ.) D (1) 8.55 8.75 0.336 E 5.8 6.2 0.228 e 1.27 e3 7.62 F (1) 3.8 4 0.150 G 4.6 5.3 0.181 L 0.4 1.27 0.016 M 0.68 S 8˚ (max.) (1) D and F do not include mold flash or protrusions. Mold flash or potrusions shall not exceed 0.15mm (.006inch). ...
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... The ST logo is a registered trademark of STMicroelectronics Australia - Brazil - Canada - China - Finland - France - Germany - Hong Kong - India - Israel - Italy - Japan -Malaysia - Malta - Morocco - Singapore - Spain - Sweden - Switzerland - United Kingdom - United States. 2003 STMicroelectronics - All Rights Reserved STMicroelectronics GROUP OF COMPANIES http://www.st.com L9669 13/13 ...