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UC1844AJ/883B The Texas Instruments UC1844AJ/883B is a current-mode PWM controller designed for off-line and DC-DC converters. It operates at frequencies up to 500kHz and features a wide temperature range.
Mfr Part #:

UC1844AJ/883B

Available from 1 distributors
Mfr Name: Texas Instruments
Texas Instruments
The Texas Instruments UC1844AJ/883B is a current-mode PWM controller designed for off-line and DC-DC converters. It operates at frequencies up to 500kHz and features a wide temperature range.
✓ Total Stock: 35 pcs

UC1844AJ/883B Available from 1 distributor

✓ 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
35 pcs
On Request
35 pcs On Request 1 On Request On Request 19+ On Request On Request
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UC1844AJ/883B Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
Manufacturer Name
Military Grade
SVHC Present
Storage Temperature
Tape & Reel
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UC1844AJ/883B Description

Short technical summary and product information.

The UC1844AJ/883B from Texas Instruments is an improved version of the UCx84x family of current-mode PWM controllers. It is optimized for off-line and DC-DC converters, offering features such as low startup current (<0.5 mA) and trimmed oscillator discharge current (8.3 mA).

 

This controller supports current-mode control with a maximum duty cycle of 50% and a maximum frequency of 500 kHz. It operates within an input voltage range of 10V to 30V, with UVLO thresholds at 16V (on) and 10V (off). The device supports multiple topologies including Boost, Flyback, and Forward.

 

The UC1844AJ/883B is housed in an 8-pin CDIP package with through-hole mounting. It has a wide operating temperature range from -55°C to 125°C. Key features include an error amplifier and multi-topology support, making it suitable for various power supply designs.

UC1844AJ/883B Quick Information

Product Type: PWM Controller
Series: UC1844A
Canonical Name: UC1844AJ/883B Current-Mode PWM Controller
Subcategory: DC DC Switching Controllers

UC1844AJ/883B Compliance

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

UC1844AJ/883B Features

  • Current-mode PWM controller.
  • Optimized for off-line and DC-DC converters.
  • Maximum frequency of 500 kHz.
  • Wide operating temperature range.
  • 8-pin CDIP package for through-hole mounting.

UC1844AJ/883B Applications

  • Suitable for Boost converters.
  • Ideal for Flyback converters.
  • Used in Forward converters.
  • Designed for DC-DC power supplies.

UC1844AJ/883B FAQs

5 frequently asked questions generated from this part’s specifications.
What is the maximum operating frequency of the UC1844AJ/883B?

The maximum operating frequency is 500 kHz.

What is the operating temperature range for the UC1844AJ/883B?

The operating temperature range is from -55°C to 125°C.

What is the input voltage range for the UC1844AJ/883B?

The input voltage range is from 10V to 30V.

What package type is the UC1844AJ/883B available in?

The UC1844AJ/883B is available in an 8-pin CDIP package.

What type of control method does the UC1844AJ/883B use?

The UC1844AJ/883B uses current-mode control.

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