DistyParts Icon
UC2843AQD8 The Texas Instruments UC2843AQD8 is a current-mode PWM controller designed for switch mode power supplies. It operates up to 500kHz and is available in an 8-SOIC package.
Mfr Part #:

UC2843AQD8

Available from 1 distributors
Mfr Name: Texas Instruments
Texas Instruments
The Texas Instruments UC2843AQD8 is a current-mode PWM controller designed for switch mode power supplies. It operates up to 500kHz and is available in an 8-SOIC package.
✓ Total Stock: 10,725 pcs
$ Price Range: $0.80

UC2843AQD8 Available from 1 distributor

✓ Authorised
✓ Non-Authorised
Distributor Stock Pricing MOQ PKG Lead Time Date Code On Order Quantity On Order Delivery
Smaxon Electronics ✓
Non-Authorised Inventory information
10,725 pcs
On Request
10725 pcs On Request 1 On Request On Request 21+ 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.

UC2843AQD8 Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
Manufacturer Name
Clock Sync
Control Features
Duty Cycle (Max)
Frequency
Function
Mounting Type
Number of Outputs
Operating Temperature
Operating Voltage
Output Configuration
Output Phases
Output Type
Supplier Device Package
Supplier Package
Synchronous Rectifier
Topology
Voltage
View Similar Products (0)

UC2843AQD8 Description

Short technical summary and product information.

The Texas Instruments UC2843AQD8 is an 8-SOIC packaged current-mode PWM controller. It is optimized for off-line and DC-to-DC converters, offering features such as automatic feed-forward compensation, pulse-by-pulse current limiting, and under-voltage lockout with hysteresis.

 

This controller operates with a voltage range of 7.6V to 30V and can achieve frequencies up to 500kHz. The maximum duty cycle is 96%. Its output configuration is positive and isolation capable, with the output type being a transistor driver. The device supports multiple topologies including Boost, Buck, Flyback, and Forward.

 

The UC2843AQD8 is designed for applications such as switch mode power supplies (SMPS), DC-DC converters, power modules, industrial PSUs, and battery-operated PSUs. It features an extended temperature performance from -40°C to 125°C.

 

Mounting is via surface mount technology. The package is an 8-SOIC with dimensions of 0.154" (3.90mm width).

UC2843AQD8 Quick Information

Product Type: DC DC Switching Controller
Canonical Name: UC2843AQD8 Current-Mode PWM Controller
Subcategory: Current Mode

UC2843AQD8 Compliance

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

UC2843AQD8 Estimated Pricing

Qty Low High
1+ $0.80 $0.80

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

UC2843AQD8 Features

  • Current-mode PWM controller for power supplies.
  • Operates up to 500kHz switching frequency.
  • Wide 7.6V to 30V operating voltage range.
  • Supports multiple topologies: Boost, Buck, Flyback.
  • Surface mount 8-SOIC package for easy integration.

UC2843AQD8 Applications

  • Ideal for step-up power supply designs.
  • Used in isolated flyback converter circuits.
  • Suitable for forward converter topologies.
  • Can be used in battery-powered systems.
  • Applicable for DC-DC conversion in industrial equipment.

UC2843AQD8 FAQs

7 frequently asked questions generated from this part’s specifications.
What is the operating voltage range of UC2843AQD8?

The operating voltage range is 7.6V to 30V.

What package is UC2843AQD8 available in?

It is available in an 8-SOIC surface-mount package (0.154", 3.90mm width).

What is the operating temperature range of UC2843AQD8?

The operating temperature range is -40°C to 125°C.

What topologies does UC2843AQD8 support?

It supports boost, buck, flyback, and forward topologies.

What is the maximum switching frequency of UC2843AQD8?

The maximum switching frequency is up to 500kHz.

Does UC2843AQD8 have under-voltage lockout?

Yes, UVLO ON threshold is 8.5V and UVLO OFF threshold is 7.9V.

What is the maximum duty cycle of UC2843AQD8?

The maximum duty cycle is less than 50%.

Home

Categories