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L9908 数据表(PDF) 104 Page - STMicroelectronics |
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L9908 数据表(HTML) 104 Page - STMicroelectronics |
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104 / 152 page  TWN_CFG1 TWN_CFG0 Description 0 1 140 deg. (Default) 1 0 150 deg. 1 1 160 deg. Figure 79. Junction temperature ranges Temperature Range: Parametrical/Functional Range L9908 is in NORMAL mode: Gate Driver Supply is active, Half Bridge Gate Drivers stage is enabled, monitoring units are enabled and SPI registers are out of reset. No damage affects L9908 and no wrong operation takes place. All static and dynamic parameters stay within specification limits. Temperature Range: Critical OT Range L9908 is set into SAFE- OFF mode: Gate Driver Supply is disabled, Half Bridge Gate Drivers stage is disabled. No damage affects L9908 and no wrong operation takes place. Static and dynamic parameters may deviate from specification limits. Exposure to critical OT conditions for extended periods may affect device reliability. Table 101. OTM electrical characteristics Symbol Parameter Min Typ Max Unit Notes OTM_th OTM detection threshold hysteresis 5 10 15 °C Not subject to production test T_otm_wr_flt Thermal Warning filter time 10 20 30 μs Digital Filter T_otm_sd_flt Thermal Shutdown filter time 7 13 17.5 μs Digital Filter OTM_readout_res OTM Readout Resolution - 8 - - Not subject to production test OTM_readout_lsb OTM Readout LSB - 1.37 - °C Not subject to production test OTM_acc OTM ADC conversion accuracy -5 - 5 °C Temperature Read out accuracy OTM-sr OTM ADC sample rate - - 1 kHz Not subject to production test T_otm_start_up OTM ADC start up time - - 3 ms Not subject to production test Note: All parameters are guaranteed, and tested, in the voltage ranges reported above in Table 5 unless otherwise specified. Where not specified the parametrical operating range equals the functional operating range. 5.20 Serial Peripheral Interface (SPI) L9908 implements a standard 4-pin Serial Peripheral Interface (SPI) to access both IC configuration and diagnosis/status registers up to 10 MHz Baud Rate (up/down-stream). L9908 Functional description DS13546 - Rev 5 page 104/152 |
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