Part Number: PMP21251 Other Parts Discussed in Thread: UCC28056 , UCC256304 How do UCC28056 and UCC256304 help maintain high efficiency across all load operations in low cost, high efficiency, offline AC/DC converters?
You could use a current sense resistor + CS amplifier. PMP21251 is one example of this: http://www.ti.com/lit/df/tidrvj7/tidrvj7.pdf
This circuit was used to do latched overcurrent protection in PMP21251.
You could place a PNP transistor in between the VDD pin of UCC24624 and its voltage bias. You could then use a circuit such as what is shown in PMP21251 but instead of doing OCP, use it to turn on or off the transistor to enable/disable UCC24624…
Part Number: UCC28056 Other Parts Discussed in Thread: PMP21251 , , Hi all,
For PMP21251 , Inrush current prevent circuit is absolutely necessary?
UCC28056 is very small ,but no merit because required a lot of space of Q100,Q102,Q103,D108,C113,C116,C117…
Part Number: UCC256304 Other Parts Discussed in Thread: UCC28056 , UCC256301 , PMP21251 , UCC256302 Hi Sir,
May I have your help for below quesitons?
1. Focus on UCC28056 + UCC256301/UCC256304
2. Could TI solution pass CoC Tier 2 and no load under 100mW…