Datasheet L9848 (STMicroelectronics) - 4

link to page 1 link to page 7 link to page 8 link to page 8 link to page 9 link to page 9 link to page 11 link to page 17 link to page 17 link to page 17 link to page 17 link to page 26
List of tables L9848 List of tables
Table 1. Device summary . 1 Table 2. Pin description . 7 Table 3. Absolute maximum ratings . 8 Table 4. Operation conditions . 8 Table 5. Thermal data. 9 Table 6. Electrical characteristcs . 9 Table 7. AC characteristics . 11 Table 8. Bit command register definition . 17 Table 9. Command register logic definition . 17 Table 10. Fault register definition . 17 Table 11. Fault logic definition . 17 Table 12. Document revision history . 26 4/27 Document Outline Table 1. Device summary 1 Block diagram and pin description Figure 1. Block diagram Figure 2. Pin connection (top view) Table 2. Pin description 2 Electrical specifications 2.1 Absolute maximum ratings Table 3. Absolute maximum ratings 2.2 Operation conditions Table 4. Operation conditions 2.3 Thermal data Table 5. Thermal data 2.4 Electrical characteristcs 2.4.1 DC characteristics Table 6. Electrical characteristcs 2.4.2 AC characteristics Table 7. AC characteristics Figure 3. DO loading for disable time measurement Figure 4. Output loading for slew rate measurement Figure 5. Output turn on/off delays and slew rates Figure 6. SPI input/output slew ratest Figure 7. SPI timing diagram 3 Functional description 3.1 General features 3.2 Outputs - Common characteristics 3.2.1 Output 1-4 3.2.2 Output 5-6 3.2.3 Output7-8 3.3 Main power input (VDD) 3.4 Discrete inputs (IN5-6) 3.5 Serial peripheral interface (SPI) 3.5.1 Serial data output (DO) 3.5.2 Serial data input (DI) 3.5.3 Chip select (CS) 3.5.4 Serial clock (SCLK) 3.6 SPI DI input command register Table 8. Bit command register definition Table 9. Command register logic definition 3.7 Fault operation Table 10. Fault register definition Table 11. Fault logic definition 3.7.1 Initial fault register SPI Cycle 3.7.2 Incandescent lamp outputs 3.8 Configuration for Output1-6 3.8.1 Low side drivers 3.8.2 High side drivers 3.9 DRN1-6 susceptibility to negative voltage transients 3.10 Thermal shutdown 3.11 Charge pump usage 3.12 Waveshaping 3.13 POR register initialization 3.14 Abnormal voltage conditions 3.14.1 Reverse Battery 3.14.2 Maximum negative transients 3.14.3 Ground offsets 3.14.4 Loss of ground operation 4 Functional block diagram Figure 8. L9848 with external components 5 Application examples Figure 9. L9848 as mirror axis control motor drivers Figure 10. L9848 as mirror motor and bulb driver Figure 11. L9848 as window lift relay and mirror motor driver Figure 12. L9848 as bipolar stepper motor driver Figure 13. L9848 driving approach for 3 bipolar stepper-motors in sequential mode for climate applications as window lift relay and mirror motor driver 6 Package information Figure 14. SO-28 mechanical data and package dimensions 7 Revision history Table 12. Document revision history