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L9788 Datasheet(PDF) 166 Page - STMicroelectronics |
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L9788 Datasheet(HTML) 166 Page - STMicroelectronics |
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166 / 264 page  LIN/K-LINE interface L9788 166/264 DS12308 Rev 4 Conditions: 7 V ≤ VB_IN ≤ 18 V, Tj -40 to 175 °C unless otherwise specified; VB_IN = 18 to 27 V, Tj ≤ 50°C, all specs in limit. In the rest of supply range, parameters are degraded or reset. If an ECU is not intended to transmit on the LIN bus (e.g. transmit input of a LIN transceiver is recessive), the LIN driver will not drive the LIN bus to dominant state.If the LIN bus is in recessive state, the LIN receiver output will provide a recessive state. Table 82. Electrical characteristics of LIN interface Symbol Parameter Test condition Min Typ Max Unit Pin Ileak_lintx Input leakage current LIN_TX = VDDIO-1 V - - 10 µA LIN_Tx VIH_TX HIGH_level Input voltage -1.45 - 2 V LIN_Tx VIL_TX LOW_level Input voltage - 0.9 - 1.4 V LIN_Tx VHYS_TX Input voltage hysteresis - 0.1 - 0.4 V LIN_Tx PULL_TX Pull-up resistance Lin_TX = 0 V 50 100 200 kΩ LIN_Tx VOH_RX HIGH-level output voltage Isource = 2 mA VDDIO -0.6 VDDIO -0.2 - V LIN_Rx VOL_RX LOW-level output voltage Isink = 2 mA - 0.2 0.5 V LIN_Rx VOL_LIN LOW-level output voltage Pull up =500 Ω, LIN_Tx = 0 V -- 0.2 VB_IN VLIN VOH_LIN HIGH-level output voltage Pull up =500 Ω, LIN_Tx = HIGH 0.8 VB_IN - VB_IN V LIN Ibus_dom Dominant Source Current LIN_Tx = HIGH, VB_IN = 12 V, LIN = 0 V -600 - 0 µA LIN Ibus_res Resessive sink current LIN_Tx=HIGH,VB_IN=8~1 8V, LIN=8~18V,LIN≥VB_IN 0 - 20 µA LIN Ibus_stby Standby current VB_IN=8~18V, LIN=8~18V,LIN≥VB_IN 0 - 20 µA LIN IOVC Current limitation LIN=18V, LIN_Tx=0V 70 - 150 mA LIN Rl-g_iso LIN bus to Ground isolation resistance - 500K - - Ω LIN ILK_NG1 Ground loss leakage current VB_IN=12V, GND = Open, LIN=0~18V -100 - 100 µA LIN ILK_NB1 VB_IN Loss Leakage Current VB_IN = Open, LIN = 0~18 V -23 - 23 µA LIN t TXDC_DOM_TO TXDC dominant time-out - 9 12 15 ms LIN |
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