UC3844AN The Texas Instruments UC3844AN is a current mode PWM controller designed for DC-DC switching applications. It operates within a voltage range of 10V to 30V and features a maximum frequency of 500kHz.
Mfr Part #:

UC3844AN

Available from 4 distributors
Mfr Name: Texas Instruments
Texas Instruments
The Texas Instruments UC3844AN is a current mode PWM controller designed for DC-DC switching applications. It operates within a voltage range of 10V to 30V and features a maximum frequency of 500kHz.
Total Stock: 2,572 pcs
$ Price Range: $0.67

UC3844AN Available from 4 distributors

Authorised
Non-Authorised

UC3844AN 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
Output Configuration
Output Phases
Output Type
SVHC Present
Supplier Device Package
Synchronous Rectifier
Topology
Voltage

UC3844AN Description

Short technical summary and product information.

The UC3844AN from Texas Instruments is a versatile current mode PWM controller suitable for various DC-DC converter topologies including Boost, Buck, Flyback, and Forward configurations. It operates efficiently within a voltage range of 10V to 30V and maintains functionality across an operating temperature range of 0°C to 70°C.

 

This controller features a maximum duty cycle of 48% and a clock synchronization capability. Its output is a transistor driver, configured for positive or isolation-capable output. The device supports frequencies up to 500kHz, offering flexibility in power supply design.

 

Packaged in an 8-PDIP through-hole component, the UC3844AN is designed for ease of integration into existing circuit boards. Its through-hole mounting type simplifies assembly and rework processes, making it a practical choice for many power management applications.

UC3844AN Quick Information

Product Type: DC DC Switching Controller
Canonical Name: UC3844AN Current Mode PWM Controller
Subcategory: Current Mode

UC3844AN Compliance

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

UC3844AN Estimated Pricing

Qty Low High
1+ $0.67 $0.67

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

UC3844AN Features

  • Current mode PWM controller
  • Supports multiple DC-DC topologies
  • Operates from 10V to 30V
  • Frequency up to 500kHz
  • Through-hole 8-PDIP package

UC3844AN Applications

  • Used in DC-DC converters
  • Suitable for offline power supplies
  • Ideal for buck-boost designs
  • Flyback power supply applications
  • Forward converter circuits

UC3844AN FAQs

7 frequently asked questions generated from this part’s specifications.
What is the supply voltage range of the UC3844AN?

The supply voltage range is 10V to 30V.

What is the package type of the UC3844AN?

The UC3844AN is available in an 8-DIP (0.300", 7.62mm) through-hole package, also known as 8-PDIP.

What is the operating temperature range of the UC3844AN?

The operating temperature range is 0°C to 70°C (TA).

What topologies does the UC3844AN support?

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

What is the maximum switching frequency of the UC3844AN?

The maximum switching frequency is up to 500kHz.

What is the maximum duty cycle of the UC3844AN?

The maximum duty cycle is 48%.

What is the output type of the UC3844AN?

The output is a single transistor driver.

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