Texas Instruments UC3851DW
- Part Number:
- UC3851DW
- Manufacturer:
- Texas Instruments
- Ventron No:
- 6410593-UC3851DW
- Description:
- Programmable off-line PWM controller
- Datasheet:
- uc3851
- TopologyBoost
- Control modeCurrent
- Duty cycle (max) (%)50
- Switching frequency (max) (kHz)500
- FeaturesError amplifier
- UVLO thresholds on/off (V)8/7.8
- Operating temperature range (°C)0 to 70
- RatingCatalog
- Gate drive (typ) (A)0.5
- Vin (max) (V)40
The UC1851 family of PWM controllers are optimized for off-line primary side control. These devices include a high current totem pole output stage and a toggle flip-flop for absolute 50% duty cycle limiting. In all other respects this line of controllers is pin for pin compatible with the UC1841 series. Inclusion of all major housekeeping functions in these high performance controllers makes them ideal for use in cost sensitive applications.
Important features of these controllers include low current start-up, linear feed-forward for constant volt-second operation, and compatibility with both voltage or current mode control. In addition, these devices include a programmable start threshold, as well as programmable over-voltage, under-voltage, and over current fault thresholds. The fault latch on these devices can be configured for automatic restart, or latched off response to a fault.
These devices are packaged in 18-pin plastic or ceramic dual-in-line packages, or for surface mount applications, a 20 Pin PLCC. The UC1851 is characterized for -55°C to 125°C operation while the UC2851 and UC3851 are designed for -40°C to 85°C and 0°C to 70°C, respectively.
Latest News
-
24 January 2024
ESP8266 Characteristics, Structure, Application Fields and Other Details
Ⅰ. What is ESP8266?Ⅱ. Characteristics of ESP8266 moduleⅢ. Hardware interface of ESP8266Ⅳ. Development method of ESP8266Ⅴ. Structure of ESP8266Ⅵ. What are the working modes of ESP8266?Ⅶ. What are... -
24 January 2024
ULN2803A Darlington Transistor Specifications, Characteristics, Working Principle and More
Ⅰ. Overview of ULN2803AⅡ. Specifications of ULN2803AⅢ. Characteristics of ULN2803AⅣ. Schematic diagram of ULN2803AⅤ. How does ULN2803A work?Ⅵ. Where is ULN2803A used?Ⅶ. Application circuit of ULN2803AⅧ. How to... -
25 January 2024
XC6206P332MR Voltage Regulator Manufacturer, Working principle, Characteristics and More
Ⅰ. Description of XC6206P332MRⅡ. Manufacturer of XC6206P332MRⅢ. Technical parameters of XC6206P332MRⅣ. Working principle of XC6206P332MRⅤ. Block diagram of XC6206P332MRⅥ. Characteristics of XC6206P332MRⅦ. Precautions for using XC6206P332MRⅧ. How to... -
25 January 2024
IRS2092S Audio Amplifier Technical Parameters, Alternatives, Applications and Other Details
Ⅰ. Overview of IRS2092SⅡ. Manufacturer of IRS2092SⅢ. Technical parameters of IRS2092SⅣ. How does IRS2092S work?Ⅴ. Circuit diagram of IRS2092SⅥ. Where is IRS2092S used?Ⅶ. What should we pay attention...
Help you to save your cost and time.
Reliable package for your goods.
Fast Reliable Delivery to save time.
Quality premium after-sale service.