Hi Marcos,
Marcos Chaparro14 said: 2kV ESD strike and the 90V max rating
The +/-90v absolute Max is mostly for high side CMM position, if you see 90v crossing a low side shunt the Totempole is/was fried anyway. The next best solution an experimental isolated…
Dear Mamadou:
Thanks for suggesting TIDA-00778, whose hardware design seems wonderful!
The TIDA-00778 uses an integrated 3 phase inverter bridge SK30GD066ET.
For my target application: Single Phase BLDC with AC230V input and rated 330W, how do you think…
Part Number: UCC27714 Other Parts Discussed in Thread: TIDA-00778 , Having configured UCC from TIDA-00778 it is clear Cboot 1000n was causing HO to produce PW >50us, open loop pulses. Likewise choice of VDD bias cap (10000n) UCC datasheet recommends 10x Cboot…
Hello Chandu,
the TIDA-00909 is based on the LMG5200 80V GaN Half Bridge Power Stage, which includes GaN FET driver and the GaN power FET in a half-bridge configuration.
Seems you are planning to use IGBTs power switches rather than GaN FETs. For IGBTs…
Part Number: UCC27714 Other Parts Discussed in Thread: TIDA-00778 , , UCC27710 It would seem the faster rise time of P/N channel boost leads to excessive Qrr (dv/dt) drain of LO side NFET and excessive ringing on the HO rising edge times. Adding larger gate…
The confusing issue being Cboot 1000n limits HB-HS PW to 50us, 50% duty, no matter HI start pulses < 2.5us. Note the HO drive PW starts (2.5us) transitions into 20us PW . Yet the high HS peaks >36v first pulse, thereafter with 100n Cboot are missing…
Yanming Luo said: USER_ADC_FULL_SCALE_DCBUS_VOLTAGE_V based on your hardware board.
The divider seems to cause numerical saturation from the calculated filter pole. Below values nearly same as SDK and BoostXL resistor divider network.
Notice often produce…
Hi Richard,
Below are captures from competitions gate driver Infineon HEXFET Qrr (640nC Max) and UCC OPTIMOS-FD Qrr (640nC Typ) above post captures. One notable difference is LO side Qrr (dv/dt) seems much faster, HO peaks no ring. Notice HO is much faster…
Part Number: TM4C1294NCPDT Other Parts Discussed in Thread: TIDA-00778 , TIDA-00195 Hi,
Can anyone shed light on how the internal oscillator is constructed: i.e. is it an embedded crystal or MEMs, or digital PLL device?
Looking at using this chip under…