Open source power quad flat no-lead (PQFN) package
First Claim
1. A power quad flat no-lead (PQFN) package comprising:
- U-phase, V-phase, and W-phase power switches situated on a leadframe;
said U-phase power switch being the only power switch situated on a U-phase output strip of said leadframe;
a drain of said U-phase power switch being connected to said U-phase output strip of said leadframe;
wherein said U-phase output strip substantially traverses across said leadframe;
a source of said U-phase power switch being connected to a U-phase current sense terminal.
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Accused Products
Abstract
According to an exemplary implementation, a power quad flat no-lead (PQFN) leadframe includes U-phase, V-phase, and W-phase power switches situated on the PQFN leadframe. A drain of the U-phase power switch is connected to a U-phase output strip of the PQFN leadframe. A source of the U-phase power switch is connected to a U-phase current sense terminal. The U-phase output strip can substantially traverse across the PQFN leadframe. Another U-phase power switch is situated on the PQFN leadframe with a source of the another U-phase power switch connected to the U-phase output strip of the PQFN leadframe. The PQFN leadframe can include a leadframe island within the U-phase output strip. At least one wirebond may be connected to the U-phase output strip.
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Citations
19 Claims
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1. A power quad flat no-lead (PQFN) package comprising:
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U-phase, V-phase, and W-phase power switches situated on a leadframe; said U-phase power switch being the only power switch situated on a U-phase output strip of said leadframe; a drain of said U-phase power switch being connected to said U-phase output strip of said leadframe; wherein said U-phase output strip substantially traverses across said leadframe; a source of said U-phase power switch being connected to a U-phase current sense terminal. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A power quad flat no-lead (PQFN) package comprising:
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U-phase, V-phase, and W-phase power switches situated on a leadframe and respectively connected to a U-phase output strip, a V-phase output strip, and a W-phase output pad of said leadframe; said U-phase power switch being the only power switch situated on said U-phase output strip of said leadframe; said U-phase output strip, said V-phase output strip, and said W-phase output pad being respectively connected to drains of said U-phase, said V-phase, and said W-phase power switches; wherein said U-phase output strip substantially traverses across said leadframe; sources of said U-phase, said V-phase, and said W-phase power switches being respectively connected to U-phase, V-phase, and W-phase current sense terminals. - View Dependent Claims (13, 14, 15, 16, 17)
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18. A power quad flat no-lead (PQFN) package, including a single driver integrated circuit (IC), said PQFN package comprising:
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U-phase, V-phase, and W-phase power switches situated on a leadframe and respectively connected to a U-phase output strip, a V-phase output strip, and a W-phase output pad of said leadframe; said U-phase power switch being the only power switch situated on said U-phase output strip of said leadframe; said U-phase output strip, said V-phase output strip, and said W-phase output pad being respectively connected to drains of said U-phase, said V-phase, and said W-phase power switches; wherein said U-phase output strip substantially traverses across said leadframe; sources of said U-phase, said V-phase, and said W-phase power switches being respectively connected to U-phase, V-phase, and W-phase current sense terminals; said single driver IC situated on a driver IC pad of said leadframe, said single driver IC being connected to said U-phase output strip and to said V-phase output strip. - View Dependent Claims (19)
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Specification