PI Forums

Hi, LNK3209 datasheet gives minimum on time = 591ns and Leading edge blanking time = 450ns Does this mean that minimum on time is more likely (591+450) ns?

Hi POWER INTEGRATIONS Team, This is Siddesh from Flex Component Engineering Team. We are working on some of your manufacturing parts and require information on the below questions. Could you please provide below MPN details as quick as possible as it's an urgent request from our site. End Customer: CHARGE

Hello, I am doing a startup testing for a LNK6763K based 15W flyback converter. My query is regarding the sudden current shoot-up, which was observed by probing the voltage across resistor at PD pin. The current is rising smoothly at startup, but there is sudden spike of 16.4V every 60ms

Hello, I am making a SMPS using TNY288DG (AC input ranging from 85 to 265VAC, DC output 20V, 0.5A). The circuits from PIExpert and from a designer program are in the attachments (they both are slightly different because sometimes I had to use other components than determined by PIExpert). The

Hi, AN-70 says a cap may be needed across upper divider res in LNK3209, to stop it dropping out at startup.....they say up to 47uF...and that it may interfere with control...so why not do it like the "soft finish" cct with two diodes, that power integrations always used to recommend

INN3878C带载12V/3A可以正常输出，带载12V/4A无法输出。原边励磁电感530uH，副边采样电阻3m欧。利用PD诱骗芯片将输出电压设置为12V。图片中黄色波形为BUS开关前面电解电容的电压。

Hi Team, We are using BRD1260C IC in one of our motors application. The BPH (Bootstrap Cap) we are using is 4.7uF. Our motor frequency is around 45Hz to run with 1400RPM. so is the Bootstrap capacitor value sufficient? or do we need more value? The Top & bottom pulse

Hello, I'm building a 36-parallel operating H-bridge current control system up to 20 kA with 1SP0335 Master, Slave gate drivers. As I test this system, I met some kind of fault signals from the gate drivers which have different lengths. But Vce is not over the limit on the datasheet

Hi, Page 29 of AN-70 shows a dangerously high voltage on vout of LNK3209 in buck. Will this still happen if we use opto feedback? What size do you recomend for the zener and 100R resistor , that AN70 recomends , to mitigate this? This is worrying to us, because

Hi, Is the attached a good way to do feedback for LNK3209 when low standby power is wanted?. Also want a fairly accurate 24V