UC3844AD The Texas Instruments UC3844AD is a current mode PWM controller designed for DC-DC switching applications. It features a surface mount 14-SOIC package.
Mfr Part #:

UC3844AD

Available from 1 distributors
Mfr Name: Texas Instruments
Texas Instruments
The Texas Instruments UC3844AD is a current mode PWM controller designed for DC-DC switching applications. It features a surface mount 14-SOIC package.
Total Stock: 78,609 pcs
$ Price Range: $0.61

UC3844AD Available from 1 distributor

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UC3844AD 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
Supplier Package
Synchronous Rectifier
Topology
Voltage

UC3844AD Description

Short technical summary and product information.

The UC3844AD from Texas Instruments is a current mode PWM controller suitable for various DC-DC switching power supply topologies including Boost, Buck, Flyback, and Forward converters. It operates within a voltage range of 10V to 30V and supports a maximum duty cycle of 48% at frequencies up to 500kHz.

 

This controller is designed for off-line and DC-DC converters, offering features such as frequency control, pulse-by-pulse current limiting, and undervoltage lockout with hysteresis. The UC3844AD is available in a 14-SOIC package, requiring surface mount installation.

 

Its output configuration is positive and isolation capable, with the output type specified as a Transistor Driver. The operating temperature range is from 0°C to 70°C (TA).

UC3844AD Quick Information

Product Type: DC DC Switching Controller
Canonical Name: UC3844AD Current Mode PWM Controller
Subcategory: DC DC Switching Controllers

UC3844AD Compliance

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

UC3844AD Estimated Pricing

Qty Low High
1+ $0.61 $0.61

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

UC3844AD Features

  • Current mode PWM controller
  • Operates from 10V to 30V
  • Up to 500kHz switching frequency
  • 48% maximum duty cycle
  • Surface mount 14-SOIC package

UC3844AD Applications

  • Suitable for Boost converters
  • Suitable for Buck converters
  • Suitable for Flyback converters
  • Suitable for Forward converters
  • Used in DC-DC power supplies

UC3844AD FAQs

7 frequently asked questions generated from this part’s specifications.
What is the operating voltage range of the UC3844AD?

The operating voltage is 10V to 30V.

What is the operating temperature range of the UC3844AD?

The operating temperature range is 0°C to 70°C.

What package options are available for the UC3844AD?

The UC3844AD is available in a 14-SOIC surface-mount package (0.154", 3.90mm width).

What is the maximum switching frequency?

The maximum switching frequency is 500kHz.

Which topologies does the UC3844AD support?

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

What is the maximum duty cycle of the UC3844AD?

The maximum duty cycle is 48%.

What is the output configuration of the UC3844AD?

The output is positive and isolation capable.

UC3844AD Alternate Parts

Same form/fit/function or matching attribute configuration across different manufacturers.
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UC3844ADTR
UC3844ADTR
Texas Instruments
The Texas Instruments UC3844ADTR is a current mode PWM controller designed for DC-DC switching applications. It operates with a voltage range of 10V to 30V and a frequency up to 500kHz.
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