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UCC38500DW The Texas Instruments UCC38500DW is a PFC/PWM Combination Controller designed for active power-factor correction. It operates at 100kHz with a supply voltage range of 9.7V to 18V.
Mfr Part #:

UCC38500DW

Available from 1 distributors
Mfr Name: Texas Instruments
Texas Instruments
The Texas Instruments UCC38500DW is a PFC/PWM Combination Controller designed for active power-factor correction. It operates at 100kHz with a supply voltage range of 9.7V to 18V.
✓ Total Stock: 2,020 pcs
$ Price Range: $4.65

UCC38500DW Available from 1 distributor

✓ Authorised
✓ Non-Authorised
Distributor Stock Pricing MOQ PKG Lead Time Date Code On Order Quantity On Order Delivery
Optech Co.,Limited ✓
Non-Authorised Inventory information
2,020 pcs
On Request
2020 pcs On Request 1 On Request On Request 24+ On Request On Request
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.

UCC38500DW Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
Manufacturer Name
Current
Duty Cycle (Max)
Frequency
Mode
Mounting Type
Operating Temperature
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UCC38500DW Description

Short technical summary and product information.

The Texas Instruments UCC38500DW is an integrated circuit designed as a PFC/PWM Combination Controller. It facilitates active power-factor correction by shaping the AC input line current waveform to match the AC input-line voltage using average current-mode control. The device also incorporates a second-stage DC-to-DC converter that utilizes peak current-mode control for step-down power conversion.

 

Key electrical specifications include an operating frequency of 100kHz and a wide operating supply voltage range from 9.7V to 18V. It features specific undervoltage lockout (UVLO) thresholds for both VCC (10V/16V) and PWM (6.75V/5.5V). The controller has a maximum duty cycle of 100% and a low start-up supply current of 150 µA.

 

This component operates within a temperature range of 0°C to 70°C. It is housed in a 20-SOIC surface mount package with a width of 7.50mm. The UCC38500DW combines PFC and downstream converter controls, enabling near-unity power factor and accurate power limiting.

UCC38500DW Quick Information

Product Type: PFC Controller
Canonical Name: UCC38500DW PFC/PWM Combination Controller
Subcategory: Power Factor Correction

UCC38500DW Compliance

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

UCC38500DW Estimated Pricing

Qty Low High
1+ $4.65 $4.65

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

UCC38500DW Features

  • Combines PFC and downstream converter controls.
  • Achieves near-unity power factor.
  • Operates at 100kHz frequency.
  • Wide 9.7V to 18V supply voltage range.
  • Surface mount 20-SOIC package.

UCC38500DW Applications

  • Used for power factor correction in supplies.
  • Suitable for PWM switching power converters.
  • Use in offline power supply designs.
  • Ideal for single-controller PFC/PWM systems.

UCC38500DW FAQs

7 frequently asked questions generated from this part’s specifications.
What is the operating supply voltage of the UCC38500DW?

The operating supply voltage is 9.7V to 18V.

What package is the UCC38500DW available in?

The UCC38500DW is available in a 20-SOIC surface-mount package, specifically 20-SOIC (0.295", 7.50mm Width).

What is the operating temperature range?

The operating temperature range is 0°C to 70°C.

What is the switching frequency?

The nominal switching frequency is 100kHz.

What control modes are supported?

The UCC38500DW uses average current control and operates in CCM (continuous conduction mode).

What are the undervoltage lockout thresholds?

The VCC UVLO thresholds are 10V and 16V; the PWM UVLO thresholds are 5.5V and 6.75V.

What is the maximum duty cycle?

The maximum duty cycle is 100%.

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