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TI UCC28910DRRoHS

Manufacturer
TI
MPN
UCC28910DR
LCSC Part #
C527701
Packaging
SOIC-7
Customer #
Key Attributes
High-Voltage Flyback Switcher with Primary-Side Regulation and Output Current Control
Datasheetpdf iconTI UCC28910DR
In-Stock: 49
49 In stock, ships now
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QtyUnit PriceTotal Amount
1+$ 0.887$ 0.89
10+$ 0.7168$ 7.17
30+$ 0.6324$ 18.97
100+$ 0.5481$ 54.81
500+$ 0.4979$ 248.95
1,000+$ 0.4719$ 471.90
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 Current1.26A
Frequency - Switching105kHz~125kHz
Pd - Power Dissipation-
Voltage - Breakdown700V
Voltage - Supply7V~26V
FeaturesHigh voltage direct start;Quasi-resonant/valley switching;EMI optimization (spread spectrum);Adjustable current limiting;Under-voltage lockout;Constant Voltage (CV);Constant Current Mode (CC);Overtemperature protection (OTP);Over Voltage Protection
TopologyFlyback
Output Voltage5V
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 UCC28910 and UCC28911 are high-voltage flyback switchers that provide output voltage and current regulation without the use of an optical coupler. Both devices incorporate a 700-V power FET and a controller that process operating information from the flyback auxiliary winding and power FET to provide a precise output voltage and current control. The integrated high-voltage current source for startup that is switched off during device operation, and the controller current consumption is dynamically adjusted with load. Both enable the very low stand-by power consumption.

Control algorithms in the UCC28910 and UCC28911, combining switching frequency and peak primary current modulation, allow operating efficiencies to meet or exceed applicable standards. Discontinuous conduction mode (DCM) with valley switching is used to reduce switching losses. Built-in protection features help to keep secondary and primary component stress levels in check across the operating range. The frequency jitter helps to reduce EMI filter cost.

Features

AI Translation
  • Constant-Voltage (CV) and Constant-Current (CC) Output Regulation Without Optical-Coupler
  • ±5% Output Voltage Regulation Accuracy
  • ±5% Output Current Regulation With AC Line and Primary Inductance Tolerance Compensation
  • 700-V Start-Up and Smart Power Management Enables <30 mW Standby Power
  • 115-kHz Maximum Switching Frequency Design for High-Power Density
  • Valley Switching and Frequency Dithering to Ease EMI Compliance
  • Thermal Shut Down
  • Low Line and Output Over-Voltage Protection

Applications

AI Translation
  • Home and Building Automation
  • Power Metering Bias
  • Bias Power for Smoke Alarm, Fire Alarm and Thermostat
  • Wall Adapters, Chargers for Mobile Phones
  • Smart plug, IoT, MCU and WiFi Power
  • Aux power for TV, Server, White Goods
  • LED Lighting