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UC2843D8TR The Texas Instruments UC2843D8TR is a current mode PWM controller designed for DC-to-DC converters. It operates at frequencies up to 500kHz and is housed in an 8-SOIC package.
Mfr Part #:

UC2843D8TR

Available from 4 distributors
Mfr Name: Texas Instruments
Texas Instruments
The Texas Instruments UC2843D8TR is a current mode PWM controller designed for DC-to-DC converters. It operates at frequencies up to 500kHz and is housed in an 8-SOIC package.
✓ Total Stock: 96,586 pcs
$ Price Range: $0.27

UC2843D8TR Available from 4 distributors

✓ Authorised
✓ Non-Authorised
Distributor Stock Pricing MOQ PKG Lead Time Date Code On Order Quantity On Order Delivery
Romaks Technologies ✓
Non-Authorised Inventory information
60,267 pcs
On Request
60267 pcs On Request 1 On Request On Request On Request On Request On Request
Optech Co.,Limited ✓
Non-Authorised Inventory information
20,000 pcs
On Request
20000 pcs On Request 1 On Request On Request 21+ On Request On Request
Smaxon Electronics ✓
Non-Authorised Inventory information
15,000 pcs
On Request
15000 pcs On Request 1 On Request On Request 21+ On Request On Request
Xingangxin ✓
Non-Authorised Inventory information
1,319 pcs
On Request
1319 pcs On Request 1 On Request On Request On Request 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.

UC2843D8TR Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
Manufacturer Name
Clock Sync
Control Features
Duty Cycle (Max)
Frequency
Function
Industrial Grade
Mounting Type
Number of Outputs
Operating Temperature
Output Configuration
Output Phases
Output Type
Package Quantity
Supplier Device Package
Synchronous Rectifier
Tape & Reel
Topology
Voltage
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UC2843D8TR Description

Short technical summary and product information.

The UC2843D8TR from Texas Instruments is a current mode PWM controller suitable for off-line and DC-to-DC switching power supplies. It supports multiple topologies including Boost, Buck, Buck-Boost, Flyback, and Forward.

 

This controller features a wide operating voltage range of 12V to 28V and operates at frequencies up to 500kHz. The maximum duty cycle is 97%. It includes essential control features like frequency control and pulse-by-pulse current limiting. The operating temperature range is -40°C to 85°C.

 

The UC2843D8TR is available in an 8-SOIC package, designed for surface mount applications. It is specified with RoHS3 compliance and an MSL 1 rating.

 

This device is optimized for applications requiring efficient power conversion, offering features such as low start-up current and automatic feedforward compensation.

UC2843D8TR Quick Information

Product Type: DC DC Switching Controller
Canonical Name: UC2843D8TR Current Mode PWM Controller
Subcategory: Current Mode

UC2843D8TR Compliance

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

UC2843D8TR Estimated Pricing

Qty Low High
1+ $0.27 $0.27

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

UC2843D8TR Features

  • Current mode PWM controller for DC-to-DC.
  • Operates up to 500kHz frequency.
  • Supports multiple power topologies.
  • Wide 12V to 28V operating voltage.
  • Surface mount 8-SOIC package.

UC2843D8TR Applications

  • Ideal for off-line converters.
  • Suitable for DC-to-DC converters.
  • Used in switching power supplies.
  • Supports boost and buck designs.
  • Flyback and forward converter applications.

UC2843D8TR FAQs

7 frequently asked questions generated from this part’s specifications.
What is the operating voltage range of UC2843D8TR?

12V to 28V.

What is the switching frequency?

Up to 500kHz.

What is the operating temperature range?

-40°C to 85°C.

What package is the UC2843D8TR available in?

8-SOIC surface mount package.

What topologies does the UC2843D8TR support?

Boost, buck, buck-boost, flyback, forward.

What is the maximum duty cycle?

97%.

What is the output type?

Transistor driver with positive, isolation-capable configuration.

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