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L6460 数据表(PDF) 17 Page - STMicroelectronics |
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L6460 数据表(HTML) 17 Page - STMicroelectronics |
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17 / 139 page  L6460 Electrical specifications Doc ID 17713 Rev 1 17/139 3.3 Electrical characteristics VSWDRV_GATE Gate drive pin voltage 0 VPump V VSWDRV_SNS Sense pin voltage VSupply -3V VSupply V TJ Junction temperature Operating -40 125 °C 1. For Vsupply lower than 21 V an external resistor between Vsupply and Vsupply Int pins are required. For Vsupply lower than 15 V external diodes for charge pump are required. 2. Operating supply current is measured with system regulators operating but not loaded. 3. Operating VGPIO_SPI current is measured with all circuits supplied by VGPIO_SPI (GPIO’s, operational amplifiers and pass switches) enabled but not loaded. 4. The external components connected to the pin must be chosen to avoid that the voltage exceeds this operative range. Table 4. IC operating ratings Parameter Description Test condition Min Max Unit Table 5. Electrical characteristics Parameter Description Test condition Min Typ Max Unit VSupplyInt regulator VS_Int VSupplyInt output voltage (1) 18 19.5 21 V IS_Int VSupplyInt operative current (2) 11 mA Charge pump VPump VPump Charge pump voltage VSupply=32V VSupply + 10.5 VSupply +12.5 VSupply + 14.5 V FPump VPump clock frequency FOSC = 16MHz typ FOSC/6 4 kHz V3V3 regulator V3V3 V3v3 output voltage VSupply=32V 3.15 3.3 3.45 V Power on reset VSupply_POR_valid VSupply voltage for POR valid InRESET = 1mA 4 V VSupply_POR_fall VSupply POR falling threshold VSupply falling 6 8 V tSupply_POR_filt VSupply POR filter Time 3 µs V3V3_POR_fall V3v3 POR falling threshold V3V3 falling 1.9 2.2 V V3V3_POR_rise V3v3 POR rising threshold V3V3 rising 2.7 V V3V3_POR_hys V3v3 POR hysteresis 0.5 V t3V3_POR_filt V3v3 POR filter time 1.5 µs nRESET circuit VnRST_L nRESET low level output voltage I=10mA 0.4 V |
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