UCC2818DTRG4 ,BiCMOS Power Factor PreregulatorFeatures 3 DescriptionThe UCCx817 and UCCx818 family provides all the1• Controls Boost Preregulator ..
UCC2818DW ,BiCMOS Power Factor Preregulatorfeatures such• Improved Noise Immunityas lower start-up current, lower power dissipation,• Improved ..
UCC2818DWTR ,BiCMOS Power Factor Preregulator SLUS395K–FEBRUARY 2000–REVISED OCTOBER 20155 Pin Configuration and FunctionsD, DW, N, and PW Packa ..
UCC2818DWTRG4 ,BiCMOS Power Factor PreregulatorMaximum Ratings(1)over operating free-air temperature range (unless otherwise noted)MIN MAX UNITSup ..
UCC2818N ,BiCMOS Power Factor PreregulatorFeatures... 1 8 Application and Implementation...... 158.1 Application Information........ 152 Appl ..
UCC2819AD ,BiCMOS Power Factor PreregulatorELECTRICAL CHARACTERISTICST = 0°C to 70°C for the UCC3819A, −40°C to 85°C for the UCC2819A, VCC = 1 ..
UPA1601 ,Power MOS FET arrayELECTRICAL CHARACTERISTICS (Ta = 25 °C)
CHARACTERlSTIC
Output Leakage Current
SYMBOL
[O ..
UPA1601CX ,Power MOS FET arrayFEATURES
0 Direct driving is possible by standard Logic IC or Microcomputer.
(4 V driving is po ..
UPA1601GS ,Power MOS FET arrayapplications.
ABSOLUTE MAXIMUM RATINGS (Ta = 25 °C)
Output Voltage Vomm 30 V
Output Peak Vol ..
UPA1602 ,Power MOS FET arrayFEATURES 05 106 0-07 V00
. Direct driving is possible by standard Logic IC or Microcomputer.
(4 V ..
UPA1602CX ,Power MOS FET arrayELECTRICAL CHARACTERISTICS (Ta = 25 'Cl
CHARACTERISTIC SYMBOL . . . TEST CONDITIONS
|DD(ON) V ..
UPA1602GS ,Power MOS FET arrayapplications.
Equivalent Circuits (1/7 Circuit)
ABSOLUTE MAXIMUM RATINGS (Ta = 25 °C)
Supp ..
UCC2818-UCC2818D-UCC2818DG4-UCC2818DTRG4-UCC2818DW-UCC2818DWTR-UCC2818DWTRG4-UCC2818N
BiCMOS Power Factor Preregulator
VREF9
DRVOUT
GND
VCC
OVP/EN
VAOUT
1.9 V
7.5 V REFERENCE
UVLO
16 V/10 V (UCC2817)
10.5 V/10 V (UCC2818)
VCC Q
PWM
LATCH PWM
8.0 V
ENABLE
OVP
MULT
CLK
CURRENT
AMP
16 V (FOR UCC2817 ONLY)0.33 V
ZERO POWER
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UCC2817,SLUS395K–FEBRUARY
UCC2817, UCC2818, UCC3817 and UCC3818 BiCMOS Power Features Controls Boost Preregulatorto Near-Unity Power
Factor Limits Line Distortion World Wide Line Operation Over-Voltage Protection Accurate Power Limiting Average Current Mode Control Improved Noise Immunity Improved Feed-Forward Line Regulation Leading Edge Modulation 150-μA Typical Start-Up Current Low-Power BiCMOS Operation Upto 18-V Operation Frequency Range6 kHzto 220 kHz
Applications PC Power Consumer Electronics Lighting Industrial Power Supplies IEC6100-3-2 Compliant Supplies Less Than
300W
DescriptionThe UCCx817 and UCCx818
functions necessary for active power factor-corrected
preregulators. The controller achieves near-unity
power factor by shaping the AC input line current
waveformto correspondto thatof the AC input line
voltage. Average current mode control maintains
stable, low distortion sinusoidal line current.
Designedin Texas Instrument’s BiCMOS process,
the UCCx817 and UCCx818 lower start-up current,
overvoltage protection, leading-edge modulation
currentin the bulk capacitor,
offset (±2-mV) current
light load conditions.
Device(1) Forall available packages,
the endofthe data sheet.
Block Diagram
