Zenode.ai Logo
Beta
⌘K
Log InSign Up
UC2854ADWTR - SOIC (DW)

UC2854ADWTR

Active
Texas Instruments

ENHANCED BIPOLAR CCM PFC CONTROLLER WITH 16V/10V UVLO FOR 50HZ-400HZ LINE FREQ., –40°C TO 85°C

Deep-Dive with AI

Search across all available documentation for this part.

DocumentsAccurate PWM Duty Cycle ClampAdvanced High Power Factor Preregulator datasheet (Rev. E)+4
UC2854ADWTR - SOIC (DW)

UC2854ADWTR

Active
Texas Instruments

ENHANCED BIPOLAR CCM PFC CONTROLLER WITH 16V/10V UVLO FOR 50HZ-400HZ LINE FREQ., –40°C TO 85°C

Deep-Dive with AI

DocumentsAccurate PWM Duty Cycle ClampAdvanced High Power Factor Preregulator datasheet (Rev. E)+4

Technical Specifications

Parameters and characteristics for this part

SpecificationUC2854ADWTR
Current - Startup250 µA
Frequency - Switching200 kHz
Mounting TypeSurface Mount
Operating Temperature [Max]85 °C
Operating Temperature [Min]-40 °C
Package / Case16-SOIC
Package / Case [x]0.295 in
Package / Case [y]7.5 mm
Supplier Device Package16-SOIC
Voltage - Supply [Max]20 V
Voltage - Supply [Min]10 VDC

UC2854B-EP Series

Enhanced bipolar CCM PFC controller with 10.5V/10V UVLO for 50Hz-400Hz line freq., –40°C to 85°C

PartOperating Temperature [Max]Operating Temperature [Min]Package / Case [x]Package / CasePackage / Case [y]Mounting TypeSupplier Device PackageCurrent - StartupVoltage - Supply [Max]Voltage - Supply [Min]Frequency - Switching [Max]Frequency - Switching [Min]Frequency - SwitchingPackage / CasePackage / Case
Texas Instruments
UC2854BDWTRG4
85 °C
-40 °C
0.295 in
16-SOIC
7.5 mm
Surface Mount
16-SOIC
250 µA
20 V
10 VDC
120 kHz
80 kHz
Texas Instruments
UC2854ADWTR
85 °C
-40 °C
0.295 in
16-SOIC
7.5 mm
Surface Mount
16-SOIC
250 µA
20 V
10 VDC
200 kHz
Texas Instruments
UC2854ADW
85 °C
-40 °C
0.295 in
16-SOIC
7.5 mm
Surface Mount
16-SOIC
250 µA
20 V
10 VDC
200 kHz
Texas Instruments
UC2854BJ
Texas Instruments
UC2854BMDWREPG4
125 °C
-55 °C
0.295 in
16-SOIC
7.5 mm
Surface Mount
16-SOIC
300 µA
20 V
10 VDC
120 kHz
80 kHz
Texas Instruments
UC2854AN
85 °C
-40 °C
16-DIP
Through Hole
16-PDIP
250 µA
20 V
10 VDC
200 kHz
0.3 in
7.62 mm
Texas Instruments
UC2854DWTRG4
85 °C
-40 °C
0.295 in
16-SOIC
7.5 mm
Surface Mount
16-SOIC
1.5 mA
30 VDC
14.5 V
200 kHz
Texas Instruments
UC2854BN
85 °C
-40 °C
16-DIP
Through Hole
16-PDIP
250 µA
20 V
10 VDC
120 kHz
80 kHz
0.3 in
7.62 mm
Texas Instruments
UC2854BDWG4
85 °C
-40 °C
0.295 in
16-SOIC
7.5 mm
Surface Mount
16-SOIC
250 µA
20 V
10 VDC
120 kHz
80 kHz
Texas Instruments
UC2854BQG3
85 °C
-40 °C
20-LCC (J-Lead)
Surface Mount
20-PLCC (9x9)
250 µA
20 V
10 VDC
120 kHz
80 kHz

Pricing

Prices provided here are for design reference only. For realtime values and availability, please visit the distributors directly

DistributorPackageQuantity$
DigikeyCut Tape (CT) 1$ 5.95
10$ 4.01
25$ 3.51
100$ 2.94
250$ 2.67
500$ 2.50
1000$ 2.36
Digi-Reel® 1$ 5.95
10$ 4.01
25$ 3.51
100$ 2.94
250$ 2.67
500$ 2.50
1000$ 2.36
Tape & Reel (TR) 2000$ 2.25
4000$ 2.17
Texas InstrumentsLARGE T&R 1$ 4.29
100$ 3.76
250$ 2.63
1000$ 2.12

Description

General part information

UC2854B-EP Series

The UC3854A/B products are pin compatible enhanced versions of the UC3854. Like the UC3854, these products provide all of 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 the ac input line voltage. To do this the UC3854A/B uses average current mode control. Average current mode control maintains stable, low distortion sinusoidal line current without the need for slope compensation, unlike peak current mode control.

A 1%, 7.5-V reference, fixed frequency oscillator, PWM, voltage amplifierwith soft-start, line voltage feedforward (VRMSsquarer), input supply voltage clamp, and over current comparator round out the lilst of feataures.

Available in the 16-pin N (PDIP), DW (SOIC Wide), and J (CDIP) and 20-pin Q (PLCC) package. See Ordering Information table for availability by temperature range.