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công cụ tìm kiếm bảng dữ liệu linh kiện điện tử |
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công cụ tìm kiếm bảng dữ liệu linh kiện điện tử |
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VNH9090AQ bảng dữ liệu(PDF) 3 Page - STMicroelectronics |
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VNH9090AQ bảng dữ liệu(HTML) 3 Page - STMicroelectronics |
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3 / 40 page  1 Block diagram and pin description Figure 1. Block diagram Vcc Vcc clamp Undervoltage GND_A SOURCE_HSA SOURCE_HSB Logic, Diagnostic, Protections HS Power Limitation Over Temperature HS Current Limit Cross Current protection Fault Detection LS over Load detection Outputs Monitoring Tchip Monitor Current Sense VREG VREG GNDB HS_B MUX LS_B LS_A CLAMP HS_A CLAMP LS_A HS_A CLAMP LS_B CLAMP HS_B Driver HS_A Driver LS_A Driver HS_B Driver LS_B Sensing Conditioning Sensing Conditioning Sensing Conditioning Sensing Conditioning K K DRAIN_LSA DRAIN_LSB GADG260520231127GT Table 1. Block description Name Description Logic control Allows the turn-on and the turn-off of the high-side and the low-side switches according to the Truth table: operative condition and diagnostic. Undervoltage Shuts down the device for battery voltage below (4 V). High-side and low-side driver Drives the gate of the concerned switch to allow a proper RDS(on) for the leg of the bridge. High-side current limitation Limits the motor current in case of short circuit. High-side and low-side overtemperature protection In case of overload that increase the junction temperature, it shuts down the concerned driver to prevent degradation and to protect the die. Low-side overcurrent detector Detects when low-side current exceeds shutdown current and latches off the concerned low side. Fault detection Signalizes an abnormal condition of the switch (output shorted to ground or output shorted to battery) by feedback on the multisense. High-side power limitation Limits the power dissipation of the high-side driver inside safe range in case of short to ground condition. Tchip warning Provides a warning signal of the chip temperature by feedback on the multisense. VREG Internal voltage regulator that provides the supply for the gates of the low-side switches. Output monitoring Provides feedback of OUTA and OUTB state in ON state and OFF state. VNH9090AQ Block diagram and pin description DS14536 - Rev 5 page 3/40 |
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