L6563STR PFC Transition Mode PFC 5mA 90uA Electronic Integrated Circuits

STMicroelectronics L6599ATDTR Professional Power Management PMIC IMPROVED High Volt RESONANT CONTROLLER 

                                                                Features 

Tracking boost function ■ Fast “bidirectional” input voltage feedforward (1/V2 correction) ■ Interface for cascaded converter's PWM controller ■ Remote ON/OFF control ■ Accurate adjustable output overvoltage protection ■ Protection against feedback loop disconnection (latched shutdown) ■ Inductor saturation protection ■ Low (≤ 100 µA) start-up current ■ 6 mA max. operating bias current ■ 1% (@ TJ = 25 °C) internal reference voltage ■ -600/+800 mA totem pole gate driver with active pull-down during UVLO ■ SO14 package

                                                                 Pin connection

                                                              Pin description

                                                                     Pin connection

                                                          Typical electrical performance

                                            Overvoltage protection Normally, the voltage control loop keeps the output voltage Vo of the PFC pre-regulator close to its nominal value, set by the ratio of the resistors R1 and R2 of the output divider. A pin of the device (PFC_OK) has been dedicated to monitor the output voltage with a separate resistor divider (R3 high, R4 low, see Figure 35). This divider is selected so that the voltage at the pin reaches 2.5 V if the output voltage exceeds a preset value, usually larger than the maximum Vo that can be expected. Example: VO = 400 V, VOX = 434 V. Select: R3 = 8.8 MΩ; then: R4 = 8.8 MΩ ·2.5/(434-2.5) = 51 kΩ. When this function is triggered, the gate drive activity is immediately stopped until the voltage on the pin PFC_OK drops below 2.4 V. Notice that R1, R2, R3 and R4 can be selected without any constraints. The unique criterion is that both dividers have to sink a current from the output bus which needs to be significantly higher than the bias current of both INV and PFC_OK pins

Q1. What is your terms of packing?

A: Generally, we pack our goods in neutral white boxes and brown cartons.

If you have legally registered patent, we can pack the goods in your branded boxes after getting your authorization letters.

Q2. What is your MOQ?

A: We provide you small MOQ for each item, it depends your specific order!

Q3. Do you test or check all your goods before delivery?

A: Yes, we have 100% test and check all goods before delivery.

Q4: How do you make our business long-term and good relationship?

We keep good quality and competitive price to ensure our customers benefit ;

We respect every customer as our friend and we sincerely do business and make friends with them,It's not something that can be replaced.

Q5: How to contact us?
A: Send your inquiry details in the below,Click "Send"Now!!!

Shenzhen Hongxinwei Technology Co., Ltd

To adopt new technology,to produce products of quality,to offer high-class service.

Improve the management system continuously to meet customer requirement for high-quality products and services.

Why choose us?

• 100% new and originao with Advantage price
• High efficiency
• Fast Delivery
• Professional team service
• 10 Years Experience Electronic components
• Electronic components Agent
• Advantage logistic discount
• Excellent After-sales Service