The UCC27201 has undervoltage protection for the high side driver which will not allow the driver to turn on if the voltage across the bootstrap capacitor is less than about 6.7V.
Please take a scope shot of HS wrt GND and HB wrt HS.
Part Number: UCC27200 Hello!
I would like to use the ucc27200 as a bridge synchronous rectifier driver on the secondary side of the phase shift.
Therefore, the HI and LI pins receive in-phase signals instead of anti-phase signals.
Is it possible to drive…
Part Number: UCC27200 Other Parts Discussed in Thread: UCC27282 Hi team,
If I have several gate drivers of UCC27200, the input of these UCC27200 are all from the same PWM signal.
Due to the delaying matching, it might be have inconsistency of these output…
Thank you for your quick response. Again I think you to know more clearly what's going on. Problem is during power down, gate driver reached broken when positive duty increase and voltage also increased, over 120V. Let me explain what waveform is; Upper…
Part Number: LM5025C Other Parts Discussed in Thread: LM5025 , UCC27200 , TEST , LM5025B , LM5025A Dear Expert,
We are using LM5025 and UCC27200 together to Active Clump Converter and worry that UCC27200 has been broken when power down state.
We can not find…
Part Number: UCC27200 Other Parts Discussed in Thread: LM5025 , UCC27201 Hello
We are using UCC27200 as active clamp Power supply, LM 5025 together.
We found that this parts has broken when applied 48Vdc power without VDD. This power comes through main…
Part Number: UCC27200 Other Parts Discussed in Thread: UCC27714 Hello Team,
Is there spec about UCC27200 output pull down and pull low resistance like the specs shown in UCC27714 (RL max 1.45-ohm and RH max 5.8-ohm)?
Part Number: UCC27200 Other Parts Discussed in Thread: ABS , LMG1210 , LMG1020 Hi, I'm working on wireless power transfer system.
We are using GaN device (EPC 2111) and its input capacitance is almost 250p F.
I'm looking for a buffer or driver that…
Part Number: UCC27200 Other Parts Discussed in Thread: UCC27714 , UCC27712 Seniors: I used the IR2110 driver to build a half-bridge arm drive circuit, as shown below:
The circuit is analogous to the recommended circuit of the manual.
The LIN and HIN pins…