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UCC38502DW The Texas Instruments UCC38502DW is an active PFC/PWM combination controller designed for power factor correction. It operates within a voltage range of 9.7V to 18V.
Mfr Part #:

UCC38502DW

Available from 3 distributors
Mfr Name: Texas Instruments
Texas Instruments
The Texas Instruments UCC38502DW is an active PFC/PWM combination controller designed for power factor correction. It operates within a voltage range of 9.7V to 18V.
✓ Total Stock: 24,056 pcs
$ Price Range: $4.60

UCC38502DW Available from 3 distributors

✓ Authorised
✓ Non-Authorised
DistyParts aggregates offers from multiple distributors. Final prices, lead times and terms are subject to the distributors' discretion and may change without prior notice. DistyParts is not liable for any discrepancies.

UCC38502DW Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
Manufacturer Name
Current
Frequency
Mode
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UCC38502DW Description

Short technical summary and product information.

The UCC38502DW from Texas Instruments is an active PFC/PWM combination controller. This integrated circuit provides control functions for both an active power-factor-corrected preregulator and a second-stage DC-to-DC converter. It achieves near-unity power factor by shaping the AC input line current waveform to match the AC input-line voltage using average current-mode control.

 

The device utilizes peak current-mode control for the DC-to-DC converter's step-down power conversion. The PFC stage is leading-edge modulated, while the second stage is trailing-edge synchronized to minimize overlap between switching elements, thereby reducing ripple current in the bulk output capacitor. The UCC38502DW operates with a voltage range of 9.7V to 18V and a frequency of 100kHz, drawing a current of 150 µA. It is supplied in a 20-SOIC package suitable for surface mounting.

 

Key features include controls for boost preregulator to near-unity power factor, accurate power limiting, improved feedforward line regulation, and peak current-mode control in the second stage. It also offers a programmable oscillator and leading-edge/trailing-edge modulation for reduced output ripple. The operating temperature range is 0°C to 70°C.

UCC38502DW Quick Information

Product Type: PFC Controller
Canonical Name: UCC38502DW Active PFC/PWM Combination Controller
Subcategory: Power Factor Correction

UCC38502DW Compliance

RoHS Status: RoHS Compliant
Moisture Sensitivity Level (MSL): 1 Unlimited
REACH Status: REACH Unaffected

UCC38502DW Estimated Pricing

Qty Low High
1+ $4.60 $4.60

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

UCC38502DW Features

  • Combines PFC and Downstream Converter Controls
  • Controls Boost Preregulator to Near-Unity Power Factor
  • Peak Current-Mode Control in Second Stage
  • Programmable Oscillator
  • Surface Mount 20-SOIC Package

UCC38502DW Applications

  • Used in power factor correction circuits.
  • Suitable for AC-DC power supplies.
  • Ideal for offline power converters.
  • Applicable in lighting ballasts.
  • Used in server and telecom power systems.

UCC38502DW FAQs

6 frequently asked questions generated from this part’s specifications.
What is the operating voltage range of the UCC38502DW?

9.7V to 18V.

What package does the UCC38502DW come in?

20-SOIC (0.295", 7.50mm Width) surface mount.

What is the operating temperature range?

0°C to 70°C.

What is the switching frequency?

100kHz.

What is the quiescent current?

150 µA.

What control mode does the UCC38502DW use?

Average current mode.

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