Texas Instruments Corporation

Kuntal Joardar

Vijay Krishnamurthy

Min Chu

Tikno Harjono

Ankur Chauhan

Vinayak Hegde

Md Abidur Rahman

Subrato Roy

Eung Jung Kim

Gary Eugene Daum

Manish Srivastava

Sathish Vallamkonda

In some examples, an integrated circuit includes a plurality of power modules formed on a substrate, including a first power module located between second and third power modules. The first power module is configured to conduct a load current, and includes a power transistor and first and second sense transistors. The first sense transistor is disposed at a first position between the second power module and a central axis of the first power module, and the second sense transistor is disposed at a second position between the third power module and the central axis. The first sense transistor is configured to conduct a first sense current; and the second sense transistor is configured to conduct a second sense current. The first and second sense transistors are configured to direct the first and second sense currents toward a measurement circuit that is configured to determine a derived sense current indicative of the load current.

Power module including a power transistor and two sense transistors

An electronic device comprises a first semiconductor die; a power transistor integrated in the first semiconductor die, the power transistor comprising a first gate, a first terminal, and a second terminal; a first sense transistor integrated in the first semiconductor die, the first sense transistor comprising a second gate and third and fourth terminals, the second gate coupled to the first gate and the fourth terminal coupled to the second terminal; a first resistor integrated in the first semiconductor die, the first resistor has a first temperature coefficient; a second sense transistor integrated in the first semiconductor die, the second sense transistor comprising a third gate and seventh and eighth terminals, the third gate coupled to the first gate and the eighth terminal coupled to the second terminal; and a second resistor integrated in the first semiconductor die, the second resistor has a second temperature coefficient.

Power transistor coupled to multiple sense transistors

An electronic device comprises: a first semiconductor die; a power transistor integrated in the first semiconductor die, the power transistor comprising a gate, a first terminal, and a second terminal; a sense transistor integrated in the first semiconductor die, the sense transistor comprising a gate coupled to the gate of the power transistor, a first terminal, and a second terminal coupled to the second terminal of the power transistor; and a first resistor integrated in the first semiconductor die, the first resistor comprising a polysilicon section and a metal section coupled to the polysilicon section, the first resistor comprising a first terminal and a second terminal, wherein the first terminal of the first resistor is coupled to the first terminal of the sense transistor.

Power transistors with a resistor coupled to a sense transistor

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Kuntal Joardar