Electronic Components Datasheet Search |
|
UCC28702 Datasheet(PDF) 1 Page - Texas Instruments |
|
|
UCC28702 Datasheet(HTML) 1 Page - Texas Instruments |
1 / 31 page UCC28700, UCC28701 UCC28702, UCC28703 www.ti.com SLUSB41 – JULY 2012 Constant-Voltage, Constant-Current Controller With Primary-Side Regulation Check for Samples: UCC28700, UCC28701, UCC28702, UCC28703 1 FEATURES DESCRIPTION The UCC28700 family of flyback power supply • < 30-mW No-Load Power for 5-Star Rating controllers provides Constant-Voltage (CV) and • Primary-Side Regulation (PSR) Eliminates Constant-Current (CC) output regulation without the Opto-Coupler use of an optical coupler. The devices process • ±5% Voltage and Current Regulation information from the primary power switch and an auxiliary flyback winding for precise control of output • 130-kHz Maximum Switching Frequency voltage and current. Low start-up current, Enables High-Power Density Charger Designs dynamically-controlled operating states and a tailored • Quasi-Resonant Valley-Switching Operation modulation profile support very low stand-by power for Highest Overall Efficiency without sacrificing start-up time or output transient response. • Patent-Pending Frequency-Jitter Scheme to Ease EMI Compliance Control algorithms in the UCC28700 family allow • Wide VDD Range Allows Small Bias Capacitor operating efficiencies to meet or exceed applicable standards. The output drive interfaces to a MOSFET • Clamped Gate-Drive Output for MOSFET power switch. Discontinuous Conduction Mode • Protection Functions: Over-Voltage, Low-Line, (DCM) with valley switching reduces switching losses. and Over-Current Modulation of switching frequency and primary • Programmable Cable Compensation current peak amplitude (FM and AM) keeps the conversion efficiency high across the entire load and (UCC28700 only) line ranges. • NTC Resistor Interface (UCC28701, UCC28702 and UCC28703 only) with Fixed Cable The controllers have a maximum switching frequency Compensation Options of 130 kHz and always maintain control of the peak- primary current in the transformer. Protection features • SOT23-6 Package help keep primary and secondary component stresses in check. The UCC28700 allows the level of APPLICATIONS cable compensation to be programmed. The • USB-Compliant Adapters and Chargers for UCC28701, UCC28702 and UCC28703 devices allow remote temperature sensing using a Negative Consumer Electronics (cell phones, tablets Temperature Coefficient (NTC) resistor while and cameras) providing fixed cable-compensation levels. • AC and DC Power Supplies Simplified Application Diagram and Typical V-I Regulation 1 Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet. PRODUCTION DATA information is current as of publication date. Copyright © 2012, Texas Instruments Incorporated Products conform to specifications per the terms of the Texas Instruments standard warranty. Production processing does not necessarily include testing of all parameters. |
Similar Part No. - UCC28702 |
|
Similar Description - UCC28702 |
|
|
Link URL |
Privacy Policy |
ALLDATASHEET.COM |
Does ALLDATASHEET help your business so far? [ DONATE ] |
About Alldatasheet | Advertisement | Datasheet Upload | Contact us | Privacy Policy | Link Exchange | Manufacturer List All Rights Reserved©Alldatasheet.com |
Russian : Alldatasheetru.com | Korean : Alldatasheet.co.kr | Spanish : Alldatasheet.es | French : Alldatasheet.fr | Italian : Alldatasheetit.com Portuguese : Alldatasheetpt.com | Polish : Alldatasheet.pl | Vietnamese : Alldatasheet.vn Indian : Alldatasheet.in | Mexican : Alldatasheet.com.mx | British : Alldatasheet.co.uk | New Zealand : Alldatasheet.co.nz |
Family Site : ic2ic.com |
icmetro.com |