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L9966 датащи(PDF) 28 Page - STMicroelectronics |
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L9966 датащи(HTML) 28 Page - STMicroelectronics |
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28 / 122 page ![]() Figure 14. IOx configuration: IO1 driven through IO3 (stuck @ GND), Pull Up to VPRE, 5 mA, MODE=1 GADG0501181251PS 6.4 Binary Lambda mode IO[12:9] present additional capabilities for the use of binary lambda sensors. By setting LSF_MDx(x = 9:12) in DWT_VOLT_SRC_LSF_CTRL, it is possible to activate binary lambda mode to control PU5V/PUVVAR configuration through the control source defined in CIS[3:0]. Every writing access to DWT_VOLT_SRC_LSF_CTRL has impact on IOx configuration. For IO[12:9], the configuration is automatically reset: in case LSF_MD_x=1, default configuration is 250 µA PU VDD5; in case LSF_MD_x=0, default configuration is HiZ. The only selectable currents when binary lambda mode is active are reported in Table 17. Table 17. Lambda IO current values Symbol Parameter Condition Min Typ Max Unit Pin UBSW = 7.5 V:36 V, VDD5V = 4.85 V:5.15 V, Tj-max = 150 °C unless otherwise specified. Ipu_7_VVAR Pull up current Current source code [CV2,CV1,CV0]=111, pull-up current to VVAR 16 20 22 µA IO9-12 Ipu_6_VVAR Pull up current Current source code [CV2,CV1,CV0]=110, pull-up current to VVAR 16 20 22 µA IO9-12 Ipu_5_VVAR Pull up current Current source code [CV2,CV1,CV0]=101, pull-up current to VVAR -50% 1 +50% µA IO9-12 Ipu_4_VVAR Pull up current Current source code [CV2,CV1,CV0]=100, pull-up current to VVAR -50% 1 +50% µA IO9-12 Ipu_7_5V Pull up current Current source code [CV2,CV1,CV0]=111, pull-up current to 5V_REF -10% 500 +10% µA IO9-12 Ipu_6_5V Pull up current Current source code [CV2,CV1,CV0]=110, pull-up current to 5V_REF -20% 250 +20% µA IO9-12 Ipu_5_5V Pull up current Current source code [CV2,CV1,CV0]=101, pull-up current to 5V_REF -10% 500 +10% µA IO9-12 Ipu_4_5V Pull up current Current source code [CV2,CV1,CV0]=100, pull-up current to 5V_REF -20% 250 +20% µA IO9-12 L9966 Binary Lambda mode DS12459 - Rev 10 page 28/122 |
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