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TI / AC-DC PWM Controllers

UC3854BDW

Logic / Analog IC

New & Original Prototype to volume sourcing
COMPONENT PROFILE
SOIC-16 generic package illustration, not a part-specific image

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SOIC-16 · Generic package illustration

Based on the catalogue package field; not verified for this part. Check manufacturer documentation for dimensions, polarity and pinout.View part documentation ↓
Package reference · Not a dimension drawing
Package
SOIC-16

Product overview

TI AC-DC PWM Controllers UC3854BDW is a genuine original component suitable for circuit design and volume procurement. We supply full specifications, datasheets and flexible pricing, supporting both prototype and long-term supply.

Manufacturer
TI
Part number
UC3854BDW
Category
AC-DC PWM Controllers
Package
SOIC-16
Condition
New & Original
Lifecycle
Confirm with manufacturer
Lead time / MOQ
Confirm with quotation

Technical parameters

40 parameters

Construction

VSENSE
11
PKLMT
5
50% duty cycle
1.5
Continuous
0.5
Power dissipation
1 W
Human-body model (HBM), per ANSI/ESDA/JEDEC JS-001
±2500
VCC turn-on threshold 1
16 V
VCC turn-off threshold
10 V
ENA threshold, rising
2.55 V
ENA threshold hysteresis
0.25 V
Input range (ISENSE, MULTOUT)
2.5 V
6 Submit Documentation Feedback Copyright © 1998
2016, Te ated
VREF load regulation –10 mA < IREF < 0 mA
5 mV
VREF line regulation 15 V < VCC < 35
2 mV

Performance

Supply voltage
35 V
Input Voltage ISENSE
11 V
Input current RSET, IAC, PKLMT
10 mA
Storage temperature, Tstg
150 °C
VCC Supply voltage
20
TJ Operating junction temperature
85 °C
Supply current, OFF VENA = 0
1.5 mA
Supply current
10 mA
ENA input current VENA = 0
0.2 µA
VRMS input current VRMS = 5
0.01 µA
Voltage amplifier offset voltage VVAOUT = 5
8 mV
VSENSE bias current –50
25 nA
Voltage amplifier gain
100 dB
Voltage amplifier output swing
5.8 V
Voltage amplifier short circuit current VVAOUT = 0
20 mA
SS current VSS = 2.5
14 µA
Current amplifier offset voltage
4 mV
ISENSE bias current –50
120 nA
Current amplifier gain
110 dB
Current amplifier output swing
16 V
Current amplifier short-circuit current VCAOUT = 0
20 mA
Reference output voltage IREF = 0 mA, TA = 25°C
7.5 V
Reference output voltage IREF = 0 mA, over temperature
7.5 V
VREF short circuit current VREF = 0
28 mA
Multiplier out current zero IAC = 0 µA, RSET = 15 kΩ
0.2 µA
Multiplier out current RSET limited
255 µA

Specifications & documentation

Use the official manufacturer documentation to verify electrical characteristics, package dimensions and operating limits before design approval.

Frequently asked questions

Common pre-quotation questions and selection notes to help you verify key parameters and sourcing before requesting a quote.

How do I verify the part is genuine / avoid counterfeit?

Buy only from authorized or franchised channels. On receipt, check: (1) laser-etched markings that solvent will not remove; (2) batch / lot code consistent between label and device; (3) original reel or tube packaging; (4) request traceability documents (CoC, date code). For critical parts, third-party X-ray / decapsulation testing is recommended.

How do I read the markings / date code on a chip?

Most active ICs use a 4-digit date code YYWW (year + week, e.g. 2345 = 2023 week 45). The top mark is manufacturer logo + base part number + lot code. For SMD code lookup, search by "marking code + package" on AllDataSheet / Octopart / LCSC.

What does the package code mean (TO-220, SOT-23, QFP…)?

Package codes describe the physical form factor and pin layout — critical when sourcing, because electrically equivalent parts in different packages will not fit the PCB. Common: TO-220 (3-terminal power), SOT-23 (3-pin small signal), DIP / SOIC (through-hole / SMD ICs), QFP / QFN (MCUs, processors).

What if my original model is discontinued (EOL / NRND)?

Three options: (1) the manufacturer’s recommended replacement; (2) franchised distributor legacy stock; (3) a functionally compatible cross-brand part — provided pinout and key parameters match. Always evaluate on a real board before mass swap.

What is the minimum order quantity (MOQ) and lead time?

We support both sample and volume orders. Minimum order quantity, stock availability and lead time are confirmed per inquiry — tell us your model and quantity and we will quote. Sample quantities for design validation are supported.

Can I get the datasheet and samples?

The full datasheet is linked on this page. For parts without a direct datasheet, we can locate the manufacturer document on request. Sample requests are supported — contact us with your model and quantity.

Request confirmation of current stock, date code, packaging, price and delivery terms. Product information does not constitute a binding offer; final specifications are confirmed with your quotation.