Mfr Part #:

UC2854N

The Texas Instruments UC2854N is a PFC controller designed for offline AC-to-DC converters. It features Average Current Mode Control and operates at frequencies up to 200kHz.

✓ Total Stock: 8,018 pcs

$ Price Range: $2.61

UC2854N Available from 2 distributors

✓ Authorised

✓ Non-Authorised

Distributor		Stock	Pricing	MOQ	PKG	Lead Time	Date Code	On Order Quantity	On Order Delivery
Xingangxin ✓ Non-Authorised Inventory information	5,450 pcs On Request	5450 pcs	On Request	1	On Request	On Request	On Request	On Request	On Request
Components Technology Group, Inc. ✓ Non-Authorised Inventory information	2,568 pcs On Request	2568 pcs	On Request	1	On Request	On Request	On Request	On Request	On Request

UC2854N Description

Short technical summary and product information.

The UC2854N from Texas Instruments is a high-power factor preregulator designed to actively correct power factor in power systems. It controls boost PWM to achieve a power factor of 0.99 and limits line-current distortion to less than 5%. This device is suitable for worldwide operation without switches and features feedforward line regulation.

Utilizing average current-mode control, the UC2854N provides stable, fixed-frequency PWM drive with low distortion and noise sensitivity. It includes a low-offset analog multiplier and divider, a 1-A totem-pole gate driver, and a precision voltage reference. The operating voltage range is 14.5V to 30V, with an operating temperature range of -40°C to 85°C.

This component is available in a 16-PDIP through-hole package, with a case size of 16-DIP (0.300", 7.62mm). It is ideal for applications such as offline AC-to-DC converters, medical, industrial, telecom, and IT power supplies, uninterruptible power supplies (UPS), and appliances.

Note: This product is not recommended for new designs. Consider alternate products like the UCC28180.

UC2854N Quick Information

Product Type: PFC Controller

Series: UCx854

Canonical Name: UC2854N High-Power Factor Preregulator

Subcategory: AC/DC Controllers

UC2854N Compliance

RoHS Status: RoHS Compliant

Moisture Sensitivity Level (MSL): 1 Unlimited

REACH Status: REACH Unaffected

UC2854N Estimated Pricing

Qty	Low	High
1+	$2.61	$2.61

Estimated market price range - modelled values for guidance only, not live distributor offers.

UC2854N Features

Controls boost PWM to 0.99 power factor.
Limits line-current distortion to < 5%.
Features average current-mode control.
Operates worldwide without switches.
Available in 16-PDIP through-hole package.

UC2854N Applications

Used in offline AC-to-DC converters.
Suitable for industrial power supplies.
Applicable to telecom power systems.
Ideal for uninterruptible power supplies.
Used in appliances and white goods.

UC2854N FAQs

7 frequently asked questions generated from this part’s specifications.

What is the operating voltage range of the UC2854N?

14.5V to 30V.

What is the operating temperature range?

-40°C to 85°C.

What is the package type?

16-PDIP (through hole).

What is the switching frequency?

200kHz.

What is the power factor correction capability?

0.99 power factor.

What is the control mode?

Average current mode.

What is the gate driver current?

1-A totem-pole gate driver.

Category	PFC (Power Factor Correction)
Manufacturer Name	Texas Instruments
Current	1.5 mA
Frequency	200kHz
Mode	Average Current
Mounting Type	Through Hole
Operating Temperature	[{'min_value': -40, 'max_value': 85, 'unit': '°C', 'display_value': '-40°C ~ 85°C'}]
SVHC Present	Not Present
Supplier Device Package	16-PDIP
Supplier Package	16-PDIP
Voltage	[{'min_value': 14.5, 'max_value': 30, 'unit': 'V', 'display_value': '14.5V ~ 30V'}]