Buy(0)
Inquiry(0)
Dear customers, due to the implementation of the GDPR policy in Europe, UTSOURCE has also made adjustment accordingly to meet the policy requirements. Please read the new privacy policy carefully and this window will no longer pop up after you accept it.
Delivery Address
+ Add Address
The new shipping address
* Please fill in the cell phone number correctly to make sure that you can receive the tracking info in time.
Country Code
Favorite
Utsource certified original
Utsource certified original parts provide the following guarantees:
1. Utsource guarantees 100% original.
2. Utsource certified original parts can be returned and refunded unconditionally within 90 days.
Description
NCP1234 is a new fixed-frequency current-mode controller featuring Dynamic Self-Supply (DSS). This device is pin-to-pin compatible with the previous NCP12xx families.The DSS function greatly simplifies the design of the auxiliary supply and the VCC capacitor by activating the internal startup current source to supply the controller during transients. Due to frequency foldback, the controller exhibits excellent efficiency in light load condition while still achieving very low standby power consumption. Internal frequency jittering, ramp compensation, and a versatile latch input make this controller an excellent candidate for converters where component cost is the key constraint.It features a timer-based fault detection that ensures the detection of overload independently of an auxiliary winding, and an adjustable compensation to help keep the maximum power independent of the input voltage.
Title
Controller, Fixed Frequency, Current Mode, for Flyback Converters
All product names, trademarks, brands and logos used on this site are the property of their respective owners. The depiction, description or sale of products featuring these names, trademarks, brands and logos is for identification purposes only and is not intended to indicate any affiliation with or authorization by any rights holder.
Preview of the first 3 pages of the data sheet
Document Preview
supply and the VCC capacitor by activating the internal startup current source to supply the controller during transients.
Due to frequency foldback, the controller exhibits excellent efficiency in light load condition while still achieving very low
standby power consumption. Internal frequency jittering, ramp compensation, and a versatile latch input make this controller an
excellent candidate for converters where components cost is the keyoverload independently of an auxiliary winding, and an adjustable compensation to help keep the maximum power independent of the input voltage.
Finally, due to a careful design, the precision of critical parameters is well controlled over the entire temperature range to +125°C).
FeaturesSee detailed ordering and shipping information in the package dimensions section on page 32 of this data sheet.
Latch-off Input for Severe Fault Conditions, Allowing DirectAC-DC Adapters for Notebooks, LCD, and Printers Offline Battery Chargers Consumer Electronic Power Supplies Auxiliary/Housekeeping Power Supplies
Pin Description Pull the pin up or down to latch-off the controller. An internal current source allows the direct connection of an NTC for over temperature detection An optocoupler collector to ground controls the output regulation. This Input senses the Primary Current for current-mode operation, and Offers an overpower compensation adjustment. IC Ground Drives external MOSFET This supply pin accepts to 28 Vdc, with overvoltage detection
Connects to the bulk capacitor or the rectified AC line to perform the functions of Start-up Current Source and Dynamic Self-Supply
Some Part number from the same manufacture
Same catergory
282 buyer reviews from Canada
mauricio galvez ve17343
Length of registration:5 years
Very satisfied with
0
0
Reply0
09/25/2019
anton burdin
Length of registration:1 years
satisfaction
0
0
Reply0
08/02/2019
European payment method
Asia payment method
America payment method
International payment method
Latest shipping video More
Order
Payment
Shipping
Gift Coupon/Plus service
Returning
Returns are normally accepted when completed within 60 days from the date of the parcel delivered.
Defective ( Please provide a third party quality report of nonconforming products)
Return Freight charges must be prepaid; we will not accept COD shipments.
Warranty
All UTSOURCE purchases have a 60 days money back return policy, plus a 90 days UTSOURCE warranty against any manufacturing defects.This warranty shall not apply to any item where defects have been caused by improper customer assembly, failure by customer to follow instructions, product modification, negligent or improper operation.
NCP1234AD65R2G
NCP1234AD65R2G has several brands around the world that may have alternate names for NCP1234AD65R2G due to regional differences or acquisition. NCP1234AD65R2G may also be known as the following names:
BUYING OPTIONS
Stock Status: 10000
Minimum: 2
Total Price:
Unit Price:2.01700
Utsource Original Store
Total products: 2398063Total sales: 12735602
Country:
United States
Express:(FEDEX, UPS, DHL, TNT)Free shipping on first 0.5kg for orders over C$265.13,Overweight will be charged separately
JudyCustomer Manager
sales@utsource.com
(888) 766 5577
+86 15302769052
+1 (312)899-4831
(whatsapp only)
Your dedicated customer service, providing you the best service at any time.
Stop production experts, we can provide a large number of electronic components that have been stopped production and are difficult to find, to facilitate the maintenance company
Reply to
submit