Part Number: UCC21520 Tool/software: Hi team,
My customer is using our UCC21520 but met some negative ringing at OUTB pin, so they want to add an external diode as below. And the leakage is 20mA.
If this is acceptable action for our part and any side…
Part Number: UCC21520 Other Parts Discussed in Thread: UCC21550 , Tool/software: Chip bootstrap power supply, UVLO=8V. Input 50kHz complementary PWM, and the chip output is shown in the figure below.
Green represents the upper MOS transistor, blue represents…
Part Number: UCC21520 I want use the UCC21520 to control the marx curcuits, UCC21520 will be used to control the IGBT(1.2KV), so:
1. If the switch voltage is 750V, is the UCC21520 work voltage is suit to control the IGBT?
2. UCC21520 has two channel, is…
Part Number: UCC21520 Tool/software: Hi,
What is the output current specification of UCC21520DWR at 350KHz? There is no relevant curve in the datasheet. The specification value in the datasheet is tested at 1KHz.
Best regards!
Ethan
Part Number: UCC21520 Tool/software: Hi,
The specification sheet of UCC21520 provides a solution for Negative Bias with Zener Diode on Iso Bias Power Supply Output. But if my power supply has three outputs, namely VDD, GND and VEE. VDD2=18V,GND,VEE2…
Part Number: UCC21520 Hi,
I have UCC21550BQDWRQ1 circuit, which is attached. The PWM controller is UCC28086D at 33kHz. The input works fine. Concerning the output, only the OUT B is switching ON/OFF but the OUTA goes high and reads 10V, i.e., stays ON…
Part Number: UCC21520 Tool/software: Hi,
I want to ask question regarding using relay (G5Q-1A4-DC12) at the switch node of half bridge circuit to connect and disconnect individual transformers contacted in parallel to the circuit. See the attached image…
Part Number: UCC21520 Tool/software: I am using the UCC21520 to drive an IGBT in a half-bridge configuration (SKM100GB12T4 from Semikron). My intention is to apply +15V to turn it on and -12V to turn it off. Based on the datasheet, I believe Figure 10…