Datasheet L9848 (STMicroelectronics) - 10

制造商STMicroelectronics
描述Octal Configurable Low/High Side Driver
页数 / 页27 / 10 — Electrical specifications. L9848. Table 6. Electrical characteristcs …
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Electrical specifications. L9848. Table 6. Electrical characteristcs (continued). Symbol. Parameter. Conditions. Min. Typ. Max. Unit

Electrical specifications L9848 Table 6 Electrical characteristcs (continued) Symbol Parameter Conditions Min Typ Max Unit

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Electrical specifications L9848 Table 6. Electrical characteristcs (continued)
(Tj = -40°C to 150°C, VDD = 4.75 Vdc to 5.25 Vdc, VBatt=9 V to 18 V, unless otherwise specified)
Symbol Parameter Conditions Min. Typ. Max. Unit
VDD=0.5Vdc, VSRC1-6=0Vdc, DRN1-8 leakage IDRN1-8(lk) V 0.1 5 µA current (low side) DRN1-8=18 Vdc VDD=0.5Vdc, VSRC1-6=0Vdc, VDRN=35 V 1.5 10 µA VDD=0.5Vdc, VSRC1-6=0Vdc, SRC1-6 leakage ISRC1-6(lk) V -5 -0.1 µA current (high side) DRN1-8=18 Vdc VDD=0.5Vdc, VSRC1-6=0Vdc, VDRN=35 V -10 -1.5 µA VSRC1-6=0Vdc, DI=00h, DRN1-8 current sink IDRN1-8(Sink) V 50 80 µA (low side) DRN1-8 = 18 Vdc VSRC1-6=0Vdc, DI=00h, VDRN=35 V 50 60 100 µA VSRC1-6=0Vdc, DI=00h, SRC1-6 current ISRC1-6(Sour) V -80 -50 -30 µA source (high side) DRN1-8 =18 Vdc VSRC1-6=0Vdc, DI=00h, VDRN=35 V -100 -60 -30 µA DRN1-8 current limit V I SRC1-6=0Vdc, DI=FFh, DRN1-8(Limit) 0.8 1.3 1.8 A (low side) VDRN1-8 = 4-16 Vdc SRC1-6 current limit V I SRC1-6=0-12 Vdc, DI=FFh, SRC1-6(Limit) -0.8 1.3 -1.8 A (high side) VDRN1-8 = VBatt DRN1-8 clamp VDRN1-8(Cl+) V voltage (low side) SRC1-6=0Vdc, DI=00h, IDRN1-8=10 mA 35 45 55 V V V Batt– SRC1-6(Cl+)bat SRC1-6 clamp VDRN1-8=25 V DI=00h, IDRN1-8=10 mA V 45 voltage (high side) VSRC1-6GND VDRN = 10 V; ISRC = -10 mA -36 -31 -27 V DRN1-8 fault voltage VDRN1-8(Fault) V (low side) SRC1-6=0 Vdc, DI=00h 0.9VDD 1.1VDD V SRC1-6 fault voltage 0.65V V D SRC1-6(Fault) V V (high side) DRN1-8=VBatt, DI=00h 0.55VDD D T 2.0 W On-resistance j=110 °C 1.5 RDSONDRN1-8 T 1.5 W (DRN1-8) j=25 °C 1.0 Tj=-40 °C 1.3 W Thermal shutdown TjTS junction 155 185 °C temperature(1) Thermal shutdown TjTSH 5 15 K threshold hysteresis* Power on reset PORwih 3.40 4.50 V threshold on Power on reset PORwhyst 0.4 0.8 V hysteresis 1. Guaranteed by design, not tested 10/27 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