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UC3854BDW - SOIC (DW)

UC3854BDW

Active
Texas Instruments

ENHANCED BIPOLAR CCM PFC CONTROLLER WITH 10.5V/10V UVLO, 0°C TO 70°C

Deep-Dive with AI

Search across all available documentation for this part.

DocumentsDN-66 UC3854A/B and UC3855A/B Provide Power Limiting with Sinusoidal Input (Rev. A)DN-44 UC3854A and UC3854B Advanced Power Factor Correction Control ICs (Rev. A)+3
UC3854BDW - SOIC (DW)

UC3854BDW

Active
Texas Instruments

ENHANCED BIPOLAR CCM PFC CONTROLLER WITH 10.5V/10V UVLO, 0°C TO 70°C

Deep-Dive with AI

DocumentsDN-66 UC3854A/B and UC3855A/B Provide Power Limiting with Sinusoidal Input (Rev. A)DN-44 UC3854A and UC3854B Advanced Power Factor Correction Control ICs (Rev. A)+3

Technical Specifications

Parameters and characteristics for this part

SpecificationUC3854BDW
Current - Startup250 µA
Frequency - Switching200 kHz
Mounting TypeSurface Mount
Operating Temperature [Max]70 °C
Operating Temperature [Min]0 °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

UC3854B Series

Enhanced bipolar CCM PFC controller with 16V/10V UVLO for 50Hz-400Hz line freq., 0°C to 70°C

PartVoltage - Supply [Max]Voltage - Supply [Min]Supplier Device PackagePackage / Case [x]Package / CasePackage / Case [y]Frequency - SwitchingMounting TypeCurrent - StartupOperating Temperature [Max]Operating Temperature [Min]Package / CasePackage / Case
Texas Instruments
UC3854BDW
20 V
10 VDC
16-SOIC
0.295 in
16-SOIC
7.5 mm
200 kHz
Surface Mount
250 µA
70 °C
0 °C
Texas Instruments
UC3854BDWTR
20 V
10 VDC
16-SOIC
0.295 in
16-SOIC
7.5 mm
200 kHz
Surface Mount
250 µA
70 °C
0 °C
Texas Instruments
UC3854DWG4
30 VDC
14.5 V
16-SOIC
0.295 in
16-SOIC
7.5 mm
200 kHz
Surface Mount
1.5 mA
70 °C
0 °C
Texas Instruments
UC3854AN
20 V
10 VDC
16-PDIP
16-DIP
200 kHz
Through Hole
250 µA
70 °C
0 °C
0.3 in
7.62 mm
Texas Instruments
UC3854ADWTRG4
20 V
10 VDC
16-SOIC
0.295 in
16-SOIC
7.5 mm
200 kHz
Surface Mount
250 µA
70 °C
0 °C
Texas Instruments
UC3854ADWG4
20 V
10 VDC
16-SOIC
0.295 in
16-SOIC
7.5 mm
200 kHz
Surface Mount
250 µA
70 °C
0 °C
Texas Instruments
UC3854DWTRG4
30 VDC
14.5 V
16-SOIC
0.295 in
16-SOIC
7.5 mm
200 kHz
Surface Mount
1.5 mA
70 °C
0 °C
Texas Instruments
UC3854BDWG4
20 V
10 VDC
16-SOIC
0.295 in
16-SOIC
7.5 mm
200 kHz
Surface Mount
250 µA
70 °C
0 °C
Texas Instruments
UC3854DWTR-FG4
30 VDC
14.5 V
16-SOIC
0.295 in
16-SOIC
7.5 mm
200 kHz
Surface Mount
1.5 mA
70 °C
0 °C
Texas Instruments
UC3854ADW
20 V
10 VDC
16-SOIC
0.295 in
16-SOIC
7.5 mm
200 kHz
Surface Mount
250 µA
70 °C
0 °C

Pricing

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

DistributorPackageQuantity$
DigikeyTube 1$ 4.86
10$ 4.37
40$ 4.13
120$ 3.58
280$ 3.39
520$ 3.04
1000$ 2.57
2520$ 2.44
Texas InstrumentsTUBE 1$ 4.47
100$ 3.92
250$ 2.75
1000$ 2.21

Description

General part information

UC3854B 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.