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UC2844AD8TR The Texas Instruments UC2844AD8TR is a current mode PWM controller designed for off-line and DC-DC converters. It operates up to 500kHz and features a 48% maximum duty cycle.
Mfr Part #:

UC2844AD8TR

Available from 4 distributors
Mfr Name: Texas Instruments
Texas Instruments
The Texas Instruments UC2844AD8TR is a current mode PWM controller designed for off-line and DC-DC converters. It operates up to 500kHz and features a 48% maximum duty cycle.
✓ Total Stock: 19,446 pcs
$ Price Range: $0.34

UC2844AD8TR Available from 4 distributors

✓ Authorised
✓ Non-Authorised
Distributor Stock Pricing MOQ PKG Lead Time Date Code On Order Quantity On Order Delivery
Optech Co.,Limited ✓
Non-Authorised Inventory information
8,572 pcs
On Request
8572 pcs On Request 1 On Request On Request 21+ On Request On Request
Risen Electronics ✓
Non-Authorised Inventory information
6,000 pcs
On Request
6000 pcs On Request 1 On Request On Request On Request On Request On Request
Smaxon Electronics ✓
Non-Authorised Inventory information
3,000 pcs
On Request
3000 pcs On Request 1 On Request On Request 21+ On Request On Request
Xingangxin ✓
Non-Authorised Inventory information
1,874 pcs
On Request
1874 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.

UC2844AD8TR 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
Mounting Type
Number of Outputs
Operating Temperature
Output Configuration
Output Phases
Output Type
Supplier Device Package
Synchronous Rectifier
Topology
Voltage
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UC2844AD8TR Description

Short technical summary and product information.

The UC2844AD8TR from Texas Instruments is a versatile current mode PWM controller optimized for off-line and DC-DC converter applications. It supports multiple topologies including Boost, Buck, Flyback, and Forward configurations.

 

This controller features an adjustable switching frequency up to 500kHz, a maximum duty cycle of 48%, and operates within a voltage range of 10V to 30V. Key control features include frequency control, current limiting, and dead time control. It also incorporates an error amplifier and automatic feedforward compensation for enhanced performance.

 

The UC2844AD8TR is housed in an 8-SOIC package suitable for surface mount applications. It operates within an ambient temperature range of -40°C to 85°C. The device offers features like low start-up current (<0.5mA) and undervoltage lockout (UVLO) with hysteresis at 16V/10V thresholds.

UC2844AD8TR Quick Information

Product Type: DC DC Switching Controller
Series: UC2844A
Canonical Name: UC2844AD8TR Current Mode PWM Controller
Subcategory: DC-DC Switching Regulators

UC2844AD8TR Compliance

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

UC2844AD8TR Estimated Pricing

Qty Low High
1+ $0.34 $0.34

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

UC2844AD8TR Features

  • Current mode PWM controller
  • Operates up to 500kHz frequency
  • Supports multiple converter topologies
  • Surface mount 8-SOIC package
  • Wide operating voltage range

UC2844AD8TR Applications

  • Optimized for DC-DC converters
  • Suitable for off-line power supplies
  • Used in Boost converter designs
  • Applicable to Buck converter designs
  • Flyback and Forward converter applications

UC2844AD8TR FAQs

7 frequently asked questions generated from this part’s specifications.
What is the input voltage range for the UC2844AD8TR?

The input voltage range is 10V to 30V.

What is the operating temperature range?

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

What package type is the UC2844AD8TR available in?

The UC2844AD8TR is available in an 8-SOIC surface mount package.

What topologies does this controller support?

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

What is the maximum switching frequency?

The maximum switching frequency is 500kHz.

What is the maximum duty cycle?

The maximum duty cycle is 48%.

Does the UC2844AD8TR have undervoltage lockout?

Yes, it has undervoltage lockout with thresholds of 16V (start) and 10V (stop).

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