Abstract:
An electronic package (10) having enhanced heat dissipation is provided exhibiting dual conductive heat paths (40, 42) in opposing directions. The package (10) includes a substrate (16) having electrical conductors thereon and a flip chip (12) mounted to the substrate (16). The flip chip (12) has a first surface, solder bumps (14) on the first surface, and a second surface oppositely disposed from the first surface. The flip chip (12) is mounted to the substrate (16) such that the solder bumps (14) are registered with the conductors on the substrate (16). The package (10) further includes a stamped metal heat sink (30) in heat transfer relationship with the second surface of the flip chip (12). The heat sink (30) includes a cavity (32) formed adjacent to the flip chip (12) containing a thermally conductive material (34).
Abstract:
A sensing circuit (50) for detecting open and short circuit conditions in sensors (20) is provided. The sensing circuit (50) includes switching circuitry ( t1 ,t1-t5), a voltage supply (VBIAS), a test capacitor (32), and an operational amplifier (30). The switching circuitry ( t1 ,t1-t5) is electrically coupled to the voltage supply (VBIAS), test capacitor (32), operational amplifier (30), and a sensor (20). The sensing circuit (50) is configured to provide for a normal operating mode in which the sensing circuit (50) provides an output indicative of a voltage across the sensor (20), and a charging mode in which the test capacitor (32) is coupled to the sensor (20) and operational amplifier (30) and charged to a steady state, and in which the output (35) of the operational amplifier (30) is a function of the test capacitor (32) capacitance and the capacitance of the sensor (20). A method for detecting open and short circuit conditions in sensors (20) is also provided.
Abstract:
A power electronic module (10) includes heat generating power electronic devices (40-52) mounted on a circuit board (12) within a connector outline (34) circumscribing circuit board through-holes (26) for receiving pin terminals (22) of a connector assembly (18). The power electronic devices (40-52) are thermally and electrically coupled to the circuit board through-holes (26) and connector pin terminals (22) to dissipate heat generated by the power electronic devices (40-52).
Abstract:
A high-side driver circuit for driving a load, including a low-side driver IC (12) having a drive output (16) and a feedback input (18), a first transistor (Q1) coupled to the drive output (12), and a second transistor (M1) coupled between a power source and the load. The second transistor (M1) is configured to enter an "OFF" state when the first transistor (Q1) is driven into an "OFF" state by the drive output, and to enter an "ON" state when the first transistor (Q1) is driven into an "ON" state by the drive output.
Abstract:
A high-side driver circuit for driving a load, including a low-side driver IC (12) having a drive output (16) and a feedback input (18), a first transistor (Q1) coupled to the drive output (12), and a second transistor (M1) coupled between a power source and the load. The second transistor (M1) is configured to enter an "OFF" state when the first transistor (Q1) is driven into an "OFF" state by the drive output, and to enter an "ON" state when the first transistor (Q1) is driven into an "ON" state by the drive output.
Abstract:
An electronic package (10) having enhanced heat dissipation is provided exhibiting dual conductive heat paths (40, 42) in opposing directions. The package (10) includes a substrate (18) and a semiconductor device (12) mounted to the substrate (18). The semiconductor device (12) has electrical circuitry a first surface, and a second surface oppositely disposed from the first surface. A thermally conductive heat sink (30) is assembled over the semiconductor device (12) such that a cavity (32) is formed between the semiconductor device (12) and the heat sink (30). A thermally conductive and electrically insulative material (36) is disposed in the cavity (32) between the semiconductor device (12) and the heat sink (30).
Abstract:
An electronic package (10) having enhanced heat dissipation is provided exhibiting dual conductive heat paths (40, 42) in opposing directions. The package (10) includes a substrate (16) having electrical conductors thereon and a flip chip (12) mounted to the substrate (16). The flip chip (12) has a first surface, solder bumps (14) on the first surface, and a second surface oppositely disposed from the first surface. The flip chip (12) is mounted to the substrate (16) such that the solder bumps (14) are registered with the conductors on the substrate (16). The package (10) further includes a stamped metal heat sink (30) in heat transfer relationship with the second surface of the flip chip (12). The heat sink (30) includes a cavity (32) formed adjacent to the flip chip (12) containing a thermally conductive material (34).
Abstract:
A power electronic module (10) includes heat generating power electronic devices (40-52) mounted on a circuit board (12) within a connector outline (34) circumscribing circuit board through-holes (26) for receiving pin terminals (22) of a connector assembly (18). The power electronic devices (40-52) are thermally and electrically coupled to the circuit board through-holes (26) and connector pin terminals (22) to dissipate heat generated by the power electronic devices (40-52).
Abstract:
An electronic package (10) having enhanced heat dissipation is provided exhibiting dual conductive heat paths (40, 42) in opposing directions. The package (10) includes a substrate (16) having electrical conductors thereon and a flip chip (12) mounted to the substrate (16). The flip chip (12) has a first surface, solder bumps (14) on the first surface, and a second surface oppositely disposed from the first surface. The flip chip (12) is mounted to the substrate (16) such that the solder bumps (14) are registered with the conductors on the substrate (16). The package (10) further includes a stamped metal heat sink (30) in heat transfer relationship with the second surface of the flip chip (12). The heat sink (30) includes a cavity (32) formed adjacent to the flip chip (12) containing a thermally conductive material (34).