Abstract: An apparatus includes a voltage detection module and a sense resistor configured to couple a low-voltage domain of the voltage detection module to a high-voltage node of an external circuit and to develop a sense current based on a voltage developed at the high-voltage node, the sense current being received at a sensing node of the voltage detection module. The voltage detection module includes a reference network configured to establish one or more threshold conditions at respective internal nodes within the voltage detection module, the one or more threshold conditions being generated based on one or more biasing circuits, and a comparison network configured to generate one or more comparison output signals based on a received current level of the sense current and the one or more threshold conditions.

Abstract: A pulsed laser diode driver includes a source capacitor that receives a refresh current at a first terminal and develops a source voltage therefrom. A first terminal of an inductor is connected to the first terminal of the source capacitor. A second terminal of the inductor is connected to an anode of a laser diode. One or more switches are configured to control a current flow through the inductor. A timing and control circuit is configured to receive the source voltage and to generate one or more gate driver signals to control the switches to produce a high-current pulse through the laser diode. The high-current pulse corresponds to a peak current of a resonant waveform developed at the anode of the laser diode. A timing of the one or more gate driver signals is based on a voltage level of the source voltage.

Abstract: A pulsed laser diode driver includes an inductor having a first terminal configured to receive a first source voltage provided by a source capacitor. A bypass switch has a drain node connected to a second terminal of the inductor. A laser diode has an anode connected to the second terminal of the inductor and a cathode connected to a drain node of a pulse emission switch. The pulse emission switch and the bypass switch are configured to control a current flow through the inductor to emit a high-current pulse through the laser diode to thereby emit a light pulse corresponding to a peak current of a resonant waveform developed at the anode of the laser diode. The bypass switch is enabled during emission of the high-current pulse to modify a falling edge of the high-current pulse.

Abstract: A pulsed laser diode driver includes a source capacitor that receives a refresh current at a first terminal and develops a source voltage therefrom. A first terminal of an inductor is connected to the first terminal of the source capacitor. A second terminal of the inductor is connected to an anode of a laser diode and a bypass capacitor. One or more switches are configured to control a current flow through the inductor. A timing and control circuit is configured to receive the source voltage and to generate one or more gate driver signals to control the switches to produce a high-current pulse through the laser diode. The high-current pulse corresponds to a peak current of a resonant waveform developed at the anode of the laser diode. A timing of the one or more gate driver signals is based on a voltage level of the source voltage.

Abstract: A pulsed laser diode driver includes an inductor having a first terminal to receive a source voltage, and a second terminal, a source capacitor coupled between the first terminal of the inductor and ground, a bypass capacitor having a first terminal connected to the first terminal of the inductor and a second terminal connected to the second terminal of the inductor, a laser diode having a cathode that is connected to the first terminal of the inductor and an anode that is connected to the second terminal of the inductor, and a bypass switch connected between the second terminal of the inductor and ground. The bypass switch is configured to control a current flow through the inductor to produce a high-current pulse through the laser diode, the high-current pulse corresponding to a peak current of a resonant waveform developed at the anode of the laser diode.

Abstract: A pulsed laser diode driver includes a source capacitor having a first terminal connected to a respective first terminal of two or more inductors and a second terminal coupled to ground. First and second bypass switches each have a respective drain node connected to a respective second terminal of first and second inductors of the two or more inductors and a respective source node connected to ground. First and second laser diodes each have a respective anode connected to the respective second terminal of the first and second inductors. The bypass switches are configured to control a current flow through the first and second inductors to produce high-current pulses through the laser diodes, each high-current pulse corresponding to a peak current of a resonant waveform developed at the anode of the respective laser diode.

Abstract: A pulsed laser diode driver includes multiple resonant laser diode driver cells, each cell including an inductor having a first inductor terminal to receive a source voltage, a source capacitor coupled between the first inductor terminal and ground, a bypass capacitor having a first terminal connected to the first inductor terminal and a second terminal connected to a second inductor terminal, a laser diode having a cathode that is connected to the first inductor terminal and an anode that is connected to the second inductor terminal, and a bypass switch connected between the second inductor terminal and ground. Each cell's bypass switch is configured to control a current flow through that cell's respective inductor to produce a high-current pulse through that cell's laser diode, the high-current pulse corresponding to a peak current of a resonant waveform developed at the anode of that cell's laser diode.

Abstract: A pulsed laser diode array driver includes an inductor having a first terminal configured to receive a source voltage, a source capacitor coupled between the first terminal of the inductor and ground, a bypass capacitor connected between a second terminal of the inductor and ground, a bypass switch connected between the second terminal of the inductor and ground, a laser diode array with one or more rows of laser diodes, and one or more laser diode switches, each being connected between a respective row node of the laser diode array and ground. The laser diode switches and the bypass switch are configured to control a current flow through the inductor to produce respective high-current pulses through each row of the laser diode array, each of the high-current pulses corresponding to a peak current of a resonant waveform developed at that row of the laser diode array.

Abstract: A pulsed laser diode driver includes an inductor having a first terminal configured to receive a source voltage. A source capacitor has a first terminal connected to the first terminal of the inductor to provide the source voltage. A bypass switch has a drain node connected to a second terminal of the inductor and to a first terminal of a bypass capacitor. A laser diode switch has a drain node connected to the second terminal of the inductor. A laser diode has an anode connected to a source node of the laser diode switch and a cathode connected to a bias voltage node. The laser diode switch and the bypass switch control a current flow through the inductor to produce a high-current pulse through the laser diode, the high-current pulse corresponding to a peak current of a resonant waveform developed at the anode of the laser diode.

Abstract: A pulsed laser diode driver includes an inductor having a first terminal configured to receive a source voltage. A source capacitor has a first terminal connected to the first terminal of the inductor to provide the source voltage. A bypass switch has a drain node connected to a second terminal of the inductor and to a first terminal of a bypass capacitor. A laser diode switch has a drain node connected to the second terminal of the inductor. A laser diode has an anode connected to a source node of the laser diode switch and a cathode connected to a bias voltage node. The laser diode switch and the bypass switch control a current flow through the inductor to produce a high-current pulse through the laser diode, the high-current pulse corresponding to a peak current of a resonant waveform developed at the anode of the laser diode.

Abstract: A semiconductor package includes a leadframe having an electrically conductive paddle, electrically conductive perimeter package leads, a first electrically conductive clip electrically connected to a first set of the package leads, and a second electrically conductive clip electrically connected to a second set of the package leads. The semiconductor package includes a single semiconductor die. The die includes a front-side active layer having an integrated power structure of two or more transistors. The die includes a backside portion having a backside contact electrically coupled to at least one of the two or more transistors and to the paddle. One or more first front-side contacts of the die are electrically coupled to at least one of the transistors and to the first clip, and one or more second front-side contacts of the die are electrically coupled to at least one of the transistors and to the second clip.

Abstract: A pulsed laser diode driver includes a refresh circuit configured to generate a refresh current using a received input voltage. A current amplitude of the refresh current is controlled by the refresh circuit based on a voltage level of a source voltage received by the refresh circuit. A source capacitor of the pulsed laser diode driver is configured to receive the refresh current and to develop the source voltage therefrom. An inductor of the pulsed laser diode driver has a first terminal that is directly electrically connected to the source capacitor. One or more switches of the pulsed laser diode driver are configured to control a current flow through the inductor to produce a high-current pulse through a laser diode that corresponds to a peak current of a resonant waveform developed at an anode of the laser diode.

Abstract: An apparatus includes a first lateral diffusion field effect transistor (LDFET) having a first threshold voltage and that includes a first gate electrode, a first drain contact, a first source contact, and a first electrically conductive shield plate separated from the first gate electrode and the first source contact by a first interlayer dielectric. A second LDFET of the apparatus has a second threshold voltage and includes a second gate electrode, a second drain contact, and a second source contact. The second source contact is electrically connected to the first source contact of the first LDFET. A control circuit of the apparatus is electrically coupled to the first electrically conductive shield plate and is configured to apply to the first electrically conductive shield plate a first gate bias voltage of a first level to set the first threshold voltage of the first LDFET to a first desired threshold voltage.

Abstract: A pulsed laser diode array driver includes an inductor having a first terminal configured to receive a source voltage, a source capacitor coupled between the first terminal of the inductor and ground, a bypass capacitor connected between a second terminal of the inductor and ground, a bypass switch connected between the second terminal of the inductor and ground, a laser diode array with one or more rows of laser diodes, and one or more laser diode switches, each being connected between a respective row node of the laser diode array and ground. The laser diode switches and the bypass switch are configured to control a current flow through the inductor to produce respective high-current pulses through each row of the laser diode array, each of the high-current pulses corresponding to a peak current of a resonant waveform developed at that row of the laser diode array.

Abstract: A pulsed laser diode driver includes a laser diode package having a first anode terminal, a cathode terminal, a laser diode, a first bond wire, and a second bond wire. A cathode of the laser diode is electrically connected to the cathode terminal, an anode of the laser diode is electrically connected to a first end of the first bond wire and to a first end of the second bond wire. A second end of the first bond wire is electrically connected to the first anode terminal, and a second end of the second bond wire is electrically connected to a capacitor. One or more switches are configured to control a current flow through the first and second bond wires to produce a high-current pulse through the laser diode, the high-current pulse corresponding to a peak current of a resonant waveform developed at the anode of the laser diode.

Abstract: A pulsed laser diode array driver includes an inductor having a first terminal configured to receive a source voltage, a source capacitor coupled between the first terminal of the inductor and ground, a bypass capacitor connected between a second terminal of the inductor and ground, a bypass switch connected between the second terminal of the inductor and ground, a laser diode array with one or more rows of laser diodes, and one or more laser diode switches, each being connected between a respective row node of the laser diode array and ground. The laser diode switches and the bypass switch are configured to control a current flow through the inductor to produce respective high-current pulses through each row of the laser diode array, each of the high-current pulses corresponding to a peak current of a resonant waveform developed at that row of the laser diode array.

Abstract: A pulsed laser diode driver includes a refresh circuit configured to generate a refresh current using a received input voltage. A current amplitude of the refresh current is controlled by the refresh circuit based on a voltage level of a source voltage received by the refresh circuit. A source capacitor of the pulsed laser diode driver is configured to receive the refresh current and to develop the source voltage therefrom. An inductor of the pulsed laser diode driver has a first terminal that is directly electrically connected to the source capacitor. One or more switches of the pulsed laser diode driver are configured to control a current flow through the inductor to produce a high-current pulse through a laser diode that corresponds to a peak current of a resonant waveform developed at an anode of the laser diode.

Abstract: A pulsed laser diode driver includes multiple resonant laser diode driver cells, each cell including an inductor having a first inductor terminal to receive a source voltage, a source capacitor coupled between the first inductor terminal and ground, a bypass capacitor having a first terminal connected to the first inductor terminal and a second terminal connected to a second inductor terminal, a laser diode having a cathode that is connected to the first inductor terminal and an anode that is connected to the second inductor terminal, and a bypass switch connected between the second inductor terminal and ground. Each cell's bypass switch is configured to control a current flow through that cell's respective inductor to produce a high-current pulse through that cell's laser diode, the high-current pulse corresponding to a peak current of a resonant waveform developed at the anode of that cell's laser diode.

Abstract: A pulsed laser diode driver includes a source capacitor that receives a refresh current at a first terminal and develops a source voltage therefrom. A first terminal of an inductor is connected to the first terminal of the source capacitor. A second terminal of the inductor is connected to an anode of a laser diode and a bypass capacitor. One or more switches are configured to control a current flow through the inductor. A timing and control circuit is configured to receive the source voltage and to generate one or more gate driver signals to control the switches to produce a high-current pulse through the laser diode. The high-current pulse corresponds to a peak current of a resonant waveform developed at the anode of the laser diode. A timing of the one or more gate driver signals is based on a voltage level of the source voltage.

Abstract: A pulsed laser diode driver includes an inductor having a first terminal configured to receive a source voltage. A source capacitor has a first terminal connected to the first terminal of the inductor to provide the source voltage. A bypass switch has a drain node connected to a second terminal of the inductor and to a first terminal of a bypass capacitor. A laser diode switch has a drain node connected to the second terminal of the inductor. A laser diode has an anode connected to a source node of the laser diode switch and a cathode connected to a bias voltage node. The laser diode switch and the bypass switch control a current flow through the inductor to produce a high-current pulse through the laser diode, the high-current pulse corresponding to a peak current of a resonant waveform developed at the anode of the laser diode.