Search tips
Showing 54 results View by: Thread Post Sort by

  • UCC21521: Ringing/oscillation on MOSFET gate

    TI Thinks Resolved
    Part Number: UCC21521 Hi, we are facing same problems discussed in the following thread about gate ringing oscillations: https://e2e.ti.com/support/motor-drivers-group/motor-drivers/f/motor-drivers-forum/895653/drv8305-ringing-oscillation-on-mosfet-g…

  • UCC21521: UCC21521

    Part Number: UCC21521 Hi, I am trying to simulate PSpice model of UCC21521 with MOSFET ( NVHL027N65S3F ) Hex bridge and flyback diodes(IDW80C65D1) parallel with it . We want to estimate the current through the flyback diode. The motor's coil resistance…

  • UCC21521: Can NC pin connect to GND?

    TI Thinks Resolved
    Part Number: UCC21521 Hi Team, When I look at D/S, NC pin has no connection with internal circuit. So, that mean customer can connect NC to GND? or left open is recommended? Regards, Kotaro Yamashita

  • UCC21521: UCC21521

    Part Number: UCC21521 Hi! We are trying to simulate and debug a circuit where UCC21521 is used to drive Hex bridge MOSFET( IXFH56N30X3 ) for motor load. In the simulation, we used IXT_96N15P MOSFET. We are facing convergence issues and the upper MOSFET…

  • UCC21521: UCC21521

    Part Number: UCC21521 Hi! We are trying to simulate a motor driver circuit in TINA TI software. The circuit has UCC21521 motor driver, connected to a hex bridge MOSFET (IXT_96N15P,NMOS) configuration to drive a three phase BLDC motor. We generated PWM…

  • RE: UCC21521: UCC21521 failure: OUTB shorted to VSSB and VDDB shorted to VSSB

    Hi Olivia, Sorry for the delay. 1. Power to UCC21521 was from 15V, 8W DC-DC converter. Motor power supply was 160Vdc 2. PWM switching frequency was 20kHz, duty cycle varied from 0 to 100% 3. Due to shortage of ICs we are still in process of procurement…
    • Answered

  • UCC21521: Isolated voltage for "functional isolation" between CHA and CHB

    Resolved
    Part Number: UCC21521 Other Parts Discussed in Thread: UCC5310 Hi Expert, I can see for two-channel isolated gate driver(e.g. UCC21521), CHA and B has a functional isolation, the distance between VSSA to VDDB is about 3.8mm . This device can work under…
    • Resolved
    • Answered

  • UCC21521: UCC21521

    Resolved
    Part Number: UCC21521 Hi Can we connect negative bias voltage to VSSA and VSSB terminal? In datasheet it is not clear that what is rating of the pin. Thanks Devendra
    • Resolved

  • UCC21521: Isolated Gatedriver needed for new inverter design

    TI Thinks Resolved
    Part Number: UCC21521 Hi, my customer is looking for an isolated gate driver, they looked at UCC21521 and wonder whether it is the right choice. Here are their questions: We are looking for MOS driver for a new inverter. HV DC-link voltage will be 400Vdc…

  • UCC21521: Part to part skew

    TI Thinks Resolved
    Part Number: UCC21521 Hi Team, Good day. Can you please confirm the following. 1.what is the part to part skew (propagation delay matching between parts)? 2. what is the minimum Propagation Delay of this device(tpdlh and tpdhl)? Thank you and looking forward…

Didn't find what you are looking for? Post a new question.