UCC2818AD Part Information

Details for UCC2818AD by Texas Instruments

Electronic & Electrical Components > Semiconductors - ICs > Power Management

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Part Description

The UCC3817A and the UCC3818A family provides all the functions necessary for active power factor corrected preregulators. The controller achieves near unity power factor by shaping the ac input line current waveform to correspond to that of the ac input line voltage. Average current mode control maintains stable, low distortion sinusoidal line current. Designed in Texas Instrument's BiCMOS process, the UCC3817A/UCC3818A offers new features such as lower start-up current, lower power dissipation, overvoltage protection, a shunt UVLO detect circuitry, a leading-edge modulation technique to reduce ripple current in the bulk capacitor and an improved, lowoffset (±2 mV) current amplifier to reduce distortion at light load conditions.

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Part Features

  • 12-V to 17-V Operation
  • 150-u00b5A Typical Start-Up Current
  • Accurate Power Limiting
  • Average Current Mode Control
  • Controls Boost Preregulator to Near-Unity Power Factor
  • Frequency Range of 6 kHz to 220 kHz
  • Improved Feed-Forward Line Regulation
  • Improved Noise Immunity
  • Leading Edge Modulation
  • Limits Line Distortion
  • Low-Power BiCMOS Operation
  • Overvoltage Protection
  • World Wide Line Operation

Part Specifications

UVLO 10.2V
Supply Voltage Min 10V
Supply Voltage Max 17V
Startup Current 150µA
Operating Supply Current 4mA
Controller IC Case Style SOIC
No. of Pins 16Pins
Duty Cycle (%) 95%
Frequency 220kHz
Operating Temperature Min -40°C
Operating Temperature Max 85°C
Product Range -
RoHS Phthalates Compliant Yes
MSL MSL 1 - Unlimited
SVHC No SVHC (27-Jun-2018)
RoHS Compliant

Alternative Part Descriptions

  • PFC CONTROLLER, 10-17V, SOIC-16 | Newark Electronics
  • 6kHz-220kHz CCM PFC controller with 10.5V/10V UVLO and Smaller Gate Drive Resistor, -40°C to 85°C | Texas Instruments

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