This website uses cookies. By using this site, you consent to the use of cookies. For more information, please take a look at our Privacy Policy.


Current Mode PWM Controller 18V 200mA 1000kHz Automotive 8-Pin SOIC T/R

Inquiry Add To Bom

UCC28C43QDRQ1 General Description

The UCC28C4x-Q1 family devices are high performance current-mode PWM controllers.

The UCC28C4x-Q1 family supports a fixed-frequency, peak current-mode flyback implementation with UVLO and maximum duty-cycle limit options. UCC28C4X-Q1 can be configured with either primary-side regulation using an auxiliary winding or secondary-side regulation with the use of an opto-coupler. This family of devices features high frequency operation up to 1 MHz with low start up and operating currents, thus minimizing start up loss and operating power consumption for improved efficiency. The devices also feature a fast current sense to output delay time of 35 ns, and a ±1-A peak output current capability for driving large external MOSFETs directly.

The UCC28C4x-Q1 family is offered in the 8-pin SOIC (D) package.

Texas Instruments, Inc Inventory

Key Features

  • AEC-Q100 qualified with the following results:
    • Device temperature grade 1: -40⁰C to 125⁰C
    • Device HBM classification level 2: ±2 kV
    • Device CDM classification level C4B: 750 V
  • Functional Safety-Capable
    • Documentation available to aid functional safety system design
  • Operating frequency: 1 MHz Maximum
  • 50-µA standby current, 100-µA maximum
  • Low operating current of 2.3 mA at 52 kHz
  • Fast 35-ns cycle-by-cycle over-current limiting
  • ±1-A peak output current
  • Rail-to-rail output swings with 25-ns rise and 20-ns fall times
  • ±1% initial trimmed 2.5-V error amplifier reference
  • Trimmed oscillator discharge current
  • New undervoltage lockout versions
  • Create a custom design using the UCC28C4x-Q1 with theWEBENCH Power Designer
Texas Instruments, Inc Original Stock
Texas Instruments, Inc Inventory


Topology Boost, Buck, Flyback, Forward, SEPIC Control mode Current
Duty cycle (max) (%) 100 Switching frequency (max) (kHz) 1000
Features Adjustable switching frequency, Current limiting, Dead time control, Error amplifier, Programmable max duty cycle UVLO thresholds on/off (V) 8.4/7.6
Operating temperature range (°C) -40 to 125 Rating Automotive
Gate drive (typ) (A) 1 Vin (max) (V) 18
TI functional safety category Functional Safety-Capable feature-type Current Mode PWM Controller
feature-control-method Current feature-topology Boost|Flyback|Forward
feature-number-of-pwm-outputs 1 feature-switching-frequency-khz 1000
feature-maximum-duty-cycle- 96(Typ) feature-process-technology
feature-output-voltage-v 18(Max) feature-minimum-operating-supply-voltage-v 8.4
feature-maximum-operating-supply-voltage-v 18 feature-maximum-supply-current-ma 3
feature-maximum-power-dissipation-mw feature-synchronous-pin No
feature-packaging Tape and Reel feature-rad-hard
feature-pin-count 8 feature-supplier-package SOIC
feature-standard-package-name SO feature-cecc-qualified
feature-esd-protection feature-escc-qualified
feature-military No feature-aec-qualified Yes
feature-aec-qualified-number AEC-Q100 feature-eccn-code EAR99
feature-svhc Yes


Shipping Method

Our products are mainly transported and delivered by DHL, FedEx, UPS and other logistics partners on site -- Available to 200+ countries.

Delivery Time

The delivery time is usually within 2-7 days, depending on the logistics provider and the area of delivery.

The following are the estimated delivery times of some logistics service providers.

  • DHL

  • Fedex

  • UPS

  • EMS

  • Registered Air Mail


We accept TT prepayment (bank transfer), paypal, credit cards, Western Union, Money Gram.

Checks and other instruments are not supported to pay for orders and customers are required to pay all possible fees, including sales tax,
customs fees, etc.

  • Wire Transfer

  • Paypal

  • Credit Card

  • Western Union

  • Money Gram


Our policies and procedures are designed to ensure compliance with various quality specifications and to quickly resolve quality-related issues.

We promise to provide 365 days quality assurance service for all our products.

If you have any dissatisfaction with the quality of the product you received, you can contact us for a refund or exchange, as long as the product is kept in its original condition.


AVAQ determines and packages all devices based on electrostatic discharge (ESD) and moisture sensitivity level (MSL) protection requirements.
  • ESD


  • Tape and Reel

    Tape and Reel

  • Cut Tape

    Cut Tape

  • Tube or Tray

    Tube or Tray


You need to log in to reply. Sign In | Sign Up

Buying Guide

  • What is the lifespan of UCC28C43QDRQ1?

    The lifespan of UCC28C43QDRQ1 depends on various factors such as the quality of materials used, operating conditions, and the manufacturer's recommended usage time. The datasheet provided by the manufacturer specifies the expected lifespan of the product.

  • Where can I find the full specification of UCC28C43QDRQ1?

    You can find it with PDF Datasheet for UCC28C43QDRQ1 on this page. If it is not available, you can contact Avaq at [email protected] to inquire about the Datasheet for this part.

  • How to check the quality of UCC28C43QDRQ1?

    Avaq has separate quality services with common quality inspection equipment for testing items, you can also fill out a sample form, our team will get in touch with you within 24 HOURS.

  • Can I purchase samples for testing?

    Avaq offers free samples for customers to test. This can often help you determine whether the chip or component meets your needs.

  • Where can I check the delivery after the order is completed?

    Once the order is completed, you will receive an order confirmation email containing a tracking number from AVAQ, then you can track the delivery by yourself.

  • Where to view my order of UCC28C43QDRQ1 or my history order record?

    You could view all of your orders by logging in or registering AVAQ account. Log in or Register an account now.