Part Number: UCC21521 Other Parts Discussed in Thread: PMP23223 I am trying to use a pair of UCC21521 as a full bridge high voltage pulser. During the beginning of the short 5 cycle tone burst the UVLO activates on the High Side Output and does not permit…
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…
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…
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
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…
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…
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…
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…
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
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…