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UC2843AN The Texas Instruments UC2843AN is a current mode PWM controller designed for off-line and DC-DC converters. It operates up to 500kHz and supports multiple topologies.
Mfr Part #:

UC2843AN

Available from 1 distributors
Mfr Name: Texas Instruments
Texas Instruments
The Texas Instruments UC2843AN is a current mode PWM controller designed for off-line and DC-DC converters. It operates up to 500kHz and supports multiple topologies.
✓ Total Stock: 4,000 pcs
$ Price Range: $0.75

UC2843AN Available from 1 distributor

✓ Authorised
✓ Non-Authorised
Distributor Stock Pricing MOQ PKG Lead Time Date Code On Order Quantity On Order Delivery
Components Technology Group, Inc. ✓
Non-Authorised Inventory information
4,000 pcs
On Request
4000 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.

UC2843AN Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
Manufacturer Name
Clock Sync
Control Features
Duty Cycle (Max)
Features
Frequency
Function
Lead Spacing
Lead Style
Mounting Type
Number of Outputs
Operating Temperature
Output Configuration
Output Phases
Output Type
Supplier Device Package
Supplier Package
Synchronous Rectifier
Topology
Voltage
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UC2843AN Description

Short technical summary and product information.

The Texas Instruments UC2843AN is an integrated circuit designed for controlling switched-mode power supplies. It functions as a current mode PWM controller, suitable for various topologies including Boost, Buck, Flyback, and Forward converters.

 

This controller features an operating voltage range of 7.6V to 30V and can operate at frequencies up to 500kHz, with a maximum duty cycle of 96%. Key control features include adjustable and fixed frequency operation, current limiting, and dead time control. It also incorporates an error amplifier and automatic feedforward compensation.

 

The UC2843AN is available in an 8-PDIP package and is designed for through-hole mounting. It operates within an ambient temperature range of -40°C to 85°C. The device offers features like low start-up current and undervoltage lockout with hysteresis, making it suitable for robust power supply designs.

UC2843AN Quick Information

Product Type: DC DC Switching Controller
Canonical Name: UC2843AN Current Mode PWM Controller
Subcategory: DC DC Switching Controllers

UC2843AN Compliance

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

UC2843AN Estimated Pricing

Qty Low High
1+ $0.75 $0.75

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

UC2843AN Features

  • Current mode PWM controller
  • Operates up to 500kHz frequency
  • Supports multiple topologies
  • Wide voltage range 7.6V to 30V
  • Through-hole 8-PDIP package

UC2843AN Applications

  • Used in DC-DC power supply designs.
  • Ideal for multi-topology converter applications.
  • Suitable for industrial temperature environments.
  • Common in isolated power supply circuits.
  • Applied in battery-powered systems requiring low start-up current.

UC2843AN FAQs

7 frequently asked questions generated from this part’s specifications.
What is the input voltage range of the UC2843AN?

The UC2843AN operates from 7.6V to 30V.

What is the operating temperature range?

The operating temperature range is -40°C to 85°C.

What package does the UC2843AN come in?

It is available in an 8-DIP (0.300", 7.62mm) through-hole package.

What switching frequency can the UC2843AN support?

It supports switching frequencies up to 500kHz.

Which topologies does the UC2843AN support?

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

What is the maximum duty cycle of the UC2843AN?

The maximum duty cycle is 96%.

Does the UC2843AN have undervoltage lockout?

Yes, it has undervoltage lockout with hysteresis at 8.4V (start) and 7.6V (stop).

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