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UC2854N

In Stock: 6,828

Reliable performance in extreme temperature conditions

Manufacturers:
Texas Instruments, Inc
Mfr.Part#:
UC2854N
Package/Case:
DIP16
Product Type:
Power Management ICs
RoHS:
Lifecycle:
Active
EDA/CAD Models:
Request Free CAD Models for UC2854N

UC2854N Information

Description

The UC2854N is an enhanced high power factor pre-regulator from Texas Instruments, designed for offline AC-DC converters, battery chargers, and motor control circuits. It features dual tracking voltage regulators, a wide input voltage range, precision reference, adjustable output voltage, current limit protection, thermal shutdown protection, and low quiescent current. This device is suitable for battery-operated applications and available in a 14-pin PDIP package. Its key benefits include improved power factor correction and active power filtering to enhance efficiency and reduce harmonics in the system.

Features

The UC2854N features:

Dual tracking voltage regulators
Wide input voltage range
Precision reference
Adjustable output voltage
Current limit protection
Thermal shutdown protection
Low quiescent current
Suitable for battery-operated applications

It is commonly used in power supply applications such as offline AC-DC converters, battery chargers, and motor control circuits.

Package

The package type of UC2854N is PDIP (N)-16.

Manufacturer

The manufacturer of the UC2854N is Texas Instruments (TI). Texas Instruments is a Semiconductors-based American technology company that designs, manufactures, tests, and sells semiconductors, including diodes, resistors, capacitors, and integrated circuits. They are one of the world's largest semiconductor manufacturers and a leading supplier of semiconductors to industries such as automotive, industrial, and consumer electronics.

Applications

According to the product description, the UC2854N is commonly used in power supply applications such as:

Offline AC-DC converters
Battery chargers
Motor control circuits

It's also ideal for applications that require power factor correction and active power filtering to improve efficiency and reduce harmonics.

Equivalent

The equivalent products of UC2854N are:

UC3843B
UC3844B
LM5026
NCP1402

These devices are also high-power factor pre-regulators with similar features and applications as the UC2854N.

Specifications

Topology	Boost	Control mode	CCM
Switching frequency (max) (kHz)	200	UVLO thresholds on/off (V)	16/10
Vin (max) (V)	30	Features	Average current mode, Continuous Control Mode, Enable
Rating	Catalog	Operating temperature range (°C)	-40 to 85
Duty cycle (max) (%)	95	feature-type	Power Factor Correction Preregulator
feature-operation-mode	CCM, Current Mode	feature-topology	Boost
feature-minimum-operating-supply-voltage-v		feature-maximum-operating-supply-voltage-v	35
feature-start-up-supply-current-ma		feature-switching-frequency-khz	200
feature-maximum-duty-cycle-	95(Typ)	feature-packaging	Tube
feature-rad-hard		feature-pin-count	16
feature-cecc-qualified	No	feature-esd-protection	Yes
feature-military	No	feature-aec-qualified	No
feature-aec-qualified-number		feature-eccn-code	EAR99
feature-svhc	No	feature-svhc-exceeds-threshold	No
Package/Case	DIP16

UC2854N FAQs

1.Q: What industry standards does this power factor correction IC comply with?

A: While specific certifications aren't listed, it's designed for industrial applications and carries ECCN EAR99 classification with HTS code 8542.39.00.01.

2.Q: What is the maximum output current capability of this voltage regulator?

A: The maximum output current is 1A, with 1.2A current handling capability in the controller stage.

3.Q: What is the typical switching frequency of this PFC controller IC?

A: The typical switching frequency is 102kHz, with a maximum specified frequency of 200kHz.

4.Q: What package does this Texas Instruments power factor IC come in?

A: It comes in a 16-pin PDIP (Plastic Dual In-line Package) with through-hole mounting, measuring approximately 19.69mm × 6.6mm × 5.08mm.

5.Q: What are the recommended operating conditions for this power factor controller?

A: Recommended operating conditions: 15-35V supply voltage, -40°C to +85°C ambient temperature, with UVLO turn-on at 16V and turn-off at 10V.

6.Q: What is the absolute maximum supply voltage for this 16-pin DIP regulator IC?

A: The absolute maximum supply voltage is 35V, beyond which permanent damage may occur to the device.

7.Q: What is the typical application circuit for this voltage regulator IC?

A: This IC is typically used in boost topology power factor correction circuits with external MOSFET, diode, inductor and feedback components to achieve active PFC in AC/DC power supplies.

8.Q: What are the key features of Texas Instruments' power factor correction preregulator IC?

A: Key features include 1.2A current capability, 16V UVLO threshold, 15-35V supply range, 102kHz switching frequency, 95% duty cycle, and industrial temperature range (-40°C to +85°C).

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Ratings and Reviews

A

A**a
10/08/2024

10

Thank you for the quality goods. I recommend to everyone.
J

J**n
05/24/2024

8

Everything's gone. Looks normal. Didn't check. Perhaps later i will add a tip.
V

V**y
11/23/2020

16

I am extremely impressed with Avaq's professionalism and efficiency. Their speedy delivery of the EPM570T100C5N components allowed me to complete my project ahead of schedule. Thank you for an outstanding experience!

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