UCC3819AD ,BiCMOS Power Factor PreregulatorELECTRICAL CHARACTERISTICST = 0°C to 70°C for the UCC3819A, −40°C to 85°C for the UCC2819A, VCC = 1 ..
UCC3819ADG4 ,BiCMOS Power Factor Preregulator 16-SOIC 0 to 70ELECTRICAL CHARACTERISTICST = 0°C to 70°C for the UCC3819A, −40°C to 85°C for the UCC2819A, VCC = 1 ..
UCC3819D , PROGRAMMABLE OUTPUT POWER FACTOR PREREGULATOR
UCC3819N , PROGRAMMABLE OUTPUT POWER FACTOR PREREGULATOR
UCC381DP-3 ,3UCC281-3/-5/-ADJUCC381-3/-5/-ADJLow Dropout 1 Ampere Linear Regulator FamilyDESCRIPTION
UCC381DP-5 ,3ELECTRICAL CHARACTERISTICS: Unless otherwise stated, these specifications hold for TA = 0°C to 70°C ..
UPA80 ,Silicon transistor arrayTRANSISTOR ARRAY
““““““ ~ = ‘ ‘ 1 M ’0
FLUORESCENT INDICATOR PANEL DRIVER
PNP-NPN SILICON EP ..
UPA800T ,HIGH-FREQUENCY LOW NOISE AMPLIFIER NPN SILICON EPITAXIAL TRANSISTOR WITH BUILT-IN 2 ELEMENTS MINI MOLDFEATURES1.25±0.1• Low NoiseNF = 1.9 dB TYP. @ f = 2 GHz, VCE = 1 V, IC = 3 mA• High Gain2|S21e| = 6 ..
UPA800T-T1 ,HIGH-FREQUENCY LOW NOISE AMPLIFIER NPN SILICON EPITAXIAL TRANSISTOR WITH BUILT-IN 2 ELEMENTS MINI MOLDXYPRELIMINARY DATA SHEETSILICON TRANSISTORμPA800THIGH-FREQUENCY LOW NOISE AMPLIFIERNPN SILICON EP ..
UPA801 ,NPN SILICON EPITAXIAL TRANSISTOR WITH BUILT-IN 2 x 2SC5006 FLAT-LEAD 6-PIN THIN-TYPE ULTRA SUPER MINIMOLDDATA SHEETNPN SILICON RF TWIN TRANSISTORμPA801TCNPN SILICON EPITAXIAL TRANSISTOR(WITH BUILT-IN 2 × ..
UPA801T ,NPN SILICON EPITAXIAL TRANSISTOR WITH BUILT-IN 2 x 2SC5006 FLAT-LEAD 6-PIN THIN-TYPE ULTRA SUPER MINIMOLDDATA SHEETNPN SILICON RF TWIN TRANSISTORμPA801TCNPN SILICON EPITAXIAL TRANSISTOR(WITH BUILT-IN 2 × ..
UPA801T-T1 ,6-pin small MM high-frequency double transistorDATA SHEETNPN SILICON RF TWIN TRANSISTORμPA801TCNPN SILICON EPITAXIAL TRANSISTOR(WITH BUILT-IN 2 × ..
UCC3819AD-UCC3819ADG4
BiCMOS Power Factor Preregulator
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SLUS579 − OCTOBER, 2003
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FEATURES Controls Boost Preregulator to Near-Unity
Power Factor 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 10.8-V to 17-V Operation Programmable Output Voltage (Tracking
Boost Topology)
DESCRIPTIONThe UCC2819A/UCC3819A 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 T exas Instrument’s BiCMOS process,
the UCC3819A offers new features such as lower
start-up current, lower power dissipation,
overvoltage protection, a shunt UVLO detect
circuitry and a leading-edge modulation technique
to reduce ripple current in the bulk capacitor.
The UCC3819A allows the output voltage to be
programmed by bringing out the error amplifier
noninverting input.
BLOCK DIAGRAMUDG-03124
VREF
DRVOUT
GND
CAI
VCC
OVP/EN
VAOUT
PKLMT
VCC
CAOUTVSENSE
VFF
IAC
MOUTVAI
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Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
