Low-side gate driver ICs are specialized amplifiers commonly used in power supply designs that switch ground-referenced MOSFETs and IGBTs based on an input signal from a PWM controller. For low power converters below 100 ~ 200W, these drivers can be successfully integrated into PWM controllers to reduce component count, as long as certain conditions are met. These conditions ...
Read morefeature High performance 24-bit Σ-∏ ADC; 115 dB dynamic range at 78 kHz output data rate; 109 dB dynamic range at 312 kHz output data rate; 312 kHz maximum fully filtered output word rate; pin-selectable oversampling rate (64 ×, 128×, 256 ×); low power mode; flexible SPI; fully differential modulator input; on-chip differential amplifier for signal buffering; on-chip reference buf...
Read moreThe HIP4086 and HIP4086A (referred to as HIP4086/A) are three-phase N-channel MOSFET drivers. Both parts are dedicated to PWM motor control. These drivers have flexible input protocols to drive every possible switch combination. Users can even override protection through switched reluctance applications. The HIP4086/A have a wide range of programmable dead-time times ...
Read moreillustrate The HCPL-7800 (A) series of isolation amplifiers are designed for current sensing in electronic motor drives. In a typical implementation, the motor current is sensed through the HCPL-7800(A) through an external resistor and the resulting analog voltage drop. The differential output voltage creates an isolation barrier on the other side of the HCPL-7800(A) optical syst...
Read morefeature Low power ( 250 μA@5V) single 16-bit nanoDAC; 12-bit accuracy guaranteed; tiny 8-lead SOT-23 /MSOP package; reduced to 480 mA at 5 V and 100 mA at 3 V; top Electrical reset to zero/midscale; 2.7 V to 5.5 V supply; 16-bit monotonicity guaranteed by design; 3 power-down functions; serial interface to Schmitt trigger input; rail-to-rail operation; synchronous interrupt f...
Read moreDuring the circuit design process, application engineers often overlook the layout of the printed circuit board (PCB). The problem often encountered is that the schematic of the circuit is correct, but it doesn't work, or just runs at low performance. In this article, I'll show you how to properly lay out an op amp's board to ensure its functionality, performance, and robustness...
Read moreSince the advent of fieldbus technology in the late 1980s, there have been standards advocated by different entities, typical representatives are: Foundation LONWOKS, PROFIBUS, CAN, HART, etc. Among them, PROFIBUS is proposed and strongly advocated by Siemens of Germany, and it has become the German national standard DIN19245 and the European standard EU50...
Read morefeature Next-generation upgrade to ADM1021 ; on-chip and remote sensing temperature; offset registers for system calibration; 1C accuracy and resolution for local channels; 0.125C resolution/1C accuracy for remote channels; programmable temperature over/under limits; programmable Slew rate; supports System Management Bus (SMBus) alarms; 2-wire SMBus serial interface; 200 A maximu...
Read morefeature NTSC-M, PAL-B, D, G, H, I, M, N encoding; Simultaneous composite video signal and S-video signal output; Y/Cb/Cr component output (based on EIAJ guidelines); CCIR- 656 4:2 :2 8-bit parallel inputs; -EAV decode; master/slave operation; digital field sync I/O; digital vertical/horizontal sync I/O; Y filter 2x oversampling; C filter 4x oversampling; single...
Read moreillustrate The HCPL-4506 and HCPL-0466 contain a GaAs LED, while the HCPL- J456 and HCNW4506 contain an AlGaAs LED. LED with integrated high gain optically coupled photodetector. Interaction between devices with minimal propagation delay difference makes these optocouplers the best solution for increasing inverter efficiency switching dead time. An on-chip 20 kΩ ...
Read moreillustrate The HCPL-314J series devices consist of AlGaAs LEDs optically coupled to an integrated circuit with a power output stage. These optocouplers are ideal for driving power igbt and mosfet applications for motor control inverters. The operating voltage range of the high output stage provides the drive voltage required for gated devices. The voltage and current provided by thi...
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