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TI UCC28710DRRoHS

Manufacturer
TI
MPN
UCC28710DR
LCSC Part #
C80866
Packaging
SOIC-7
Customer #
Key Attributes
UCC2871x series constant-voltage and constant-current controllers with primary-side regulation function
Datasheetpdf iconTI UCC28710DR
In-Stock: 424
424 In stock, ships now
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QtyUnit PriceTotal Amount
1+$ 1.4134$ 1.41
10+$ 1.1635$ 11.64
30+$ 1.0256$ 30.77
100+$ 0.8682$ 86.82
500+$ 0.8$ 400.00
1,000+$ 0.7676$ 767.60
Standard Packaging2500/Full Reel
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Products Specifications

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TypeDescription
CategoryIntegrated Circuits (ICs)/Power Management (PMIC)/AC DC Converters, Offline Switchers
ManufacturerTI
PackagingSOIC-7
Operating Temperature-40℃~+125℃
Output Current1.05A
Frequency - Switching680Hz~100kHz
Pd - Power Dissipation-
Voltage - Breakdown700V
Voltage - Supply9V~35V
FeaturesConstant Voltage (CV);Constant Current Mode (CC);Over Voltage Protection;Under Voltage Protection;Overtemperature protection (OTP);Over Current Protection;Short Circuit Protection
TopologyFlyback
Output Voltage-
Duty Cycle(Max)-
Working ModeDCM
Feedback SystemPrimary-side feedback
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Additional Information

TypeDetails
Minimum1
Multiple1
Standard Packaging2500
Sales UnitPiece

Introduction

AI Translation

The UCC2871x series flyback power supply controllers provide isolated output constant voltage (CV) and constant current (CC) output regulation without using an opto-coupler. This device can process information from the main power switch and the auxiliary flyback winding to precisely control the output voltage and current.

The UCC2871x family is a flyback power supply controller which provides accurate voltage and constant current regulation with primary-side feedback, eliminating the need for opto-coupler feedback circuits. The controller operates in discontinuous conduction mode with valley-switching to minimize switching losses. The modulation scheme is a combination of frequency and primary peak current modulation to provide high conversion efficiency across the load range. The control law provides a wide-dynamic operating range of output power which allows the power designer to achieve the <10-mW stand-by power requirement.

During low-power operating ranges the device has power management features to reduce the device operating current at operating frequencies below 33 kHz. The UCC2871x family includes features in the modulator to reduce the EMI peak energy of the fundamental switching frequency and harmonics. Accurate voltage and constant current regulation, fast dynamic response, and fault protection are achieved with primary-side control. A complete charger solution can be realized with a straightforward design process, low cost and low component count.

Features

AI Translation
  • Less than 10mW no-load power consumption using Primary Side Regulation (PSR), no optocoupler required
  • ±5% voltage regulation and current regulation for line and load
  • 700V startup switch
  • 100kHz maximum switching frequency for high power density charger design
  • Resonant valley switching operation for maximum overall efficiency
  • Frequency dithering to simplify EMI compliance
  • Wide VDD range allows use of small bias capacitor
  • Clamped gate drive output for MOSFET
  • Overvoltage, under-line, and overcurrent protection
  • Programmable cable compensation (UCC28710)
  • NTC thermistor interface with fixed cable compensation option (UCC28711, UCC28712, and UCC28713 only)
  • SOIC-7 package
  • Custom designs available using UCC28710 with WEBENCH Power Designer

Applications

AI Translation
  • USB-compatible adapters and chargers for consumer electronics
  • Smartphones
  • Tablets
  • Camcorders
  • Standby power supplies for TVs and desktop computers
  • White goods