Power chip

TPS61235P 8-A Valley Current Synchronous Boost Converter with Constant Current Output

Low level reset, instead of IMP811TEUS

The NCP5106 is a high voltage gate driver integrated circuit providing two outputs for direct drive of 2 N-channel power MOSFETs or IGBTs in half-bridge configuration version B or any other high side + low side configuration version A. It uses a bootstrap technique to ensure proper driving of the high side power switch. The driver uses 2 independent inputs. NCP5109 = 200V, NCP5106 = 600V

The FAN73896 is a monolithic three-phase half-bridge gate driver integrated circuit for high-voltage, high-speed driving MOSFETs and IGBTs operating up to +600 V. ON Semiconductor's high-voltage process and common-mode interference suppression technology provide stable operation of the high-side driver under high dv/dt interference conditions. Advanced level shifting circuitry allows high-side gate driver operation up to VS = -9.8 V (typ) for VBS = 15 V. Protection features include undervoltage lockout and inverter overcurrent trip with automatic fault clearing. Overcurrent protection that terminates all six outputs can be generated from an external current sense resistor. An open-drain fault signal is provided to indicate overcurrent or undervoltage shutdown. A UVLO circuit prevents faulty operation when V and VBS are below threshold voltages. The output driver will typically source/sink 350mA/650mA respectively; suitable for three-phase half-bridge applications in motor drive systems.

UC3842B, UC3843B series are high performance fixed frequency current mode controllers. These devices are specifically designed for off-line and DC-DC converter applications, providing designers with a cost-effective solution with minimal external components. These ICs feature a trimmed oscillator for precise duty cycle control, a temperature compensated reference, a high gain error amplifier, a current sense comparator, and a high current totem pole output suitable for driving power MOSFETs. Additionally, protection features are included, including input and reference undervoltage lockouts each with hysteresis, cycle-by-cycle current limit, programmable output dead time, and a latch for single-pulse metering. These devices are available in 8-pin dual inline plug-in and surface mount (SO-8) plastic encapsulation and 14-pin plastic surface mount (SO-14) encapsulation. The SO-14 encapsulation has separate power and ground pins for the totem pole output stage. The UCX842B has a UVLO threshold of 16 V (on) and 10 V (off), making it ideal for offline converters. The UCX843B is designed for low-voltage applications with UVLO thresholds of 8.5 V (on) and 7.6 V (off).

UC3842B, UC3843B series are high performance fixed frequency current mode controllers. These devices are specifically designed for off-line and DC-DC converter applications, providing designers with a cost-effective solution with minimal external components. These ICs feature a trimmed oscillator for precise duty cycle control, a temperature compensated reference, a high gain error amplifier, a current sense comparator, and a high current totem pole output suitable for driving power MOSFETs. Additionally, protection features are included, including input and reference undervoltage lockouts each with hysteresis, cycle-by-cycle current limit, programmable output dead time, and a latch for single-pulse metering. These devices are available in 8-pin dual inline plug-in and surface mount (SO-8) plastic encapsulation and 14-pin plastic surface mount (SO-14) encapsulation. The SO-14 encapsulation has separate power and ground pins for the totem pole output stage. The UCX842B has a UVLO threshold of 16 V (on) and 10 V (off), making it ideal for offline converters. The UCX843B is designed for low-voltage applications with UVLO thresholds of 8.5 V (on) and 7.6 V (off).