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UC1844L/883B The Texas Instruments UC1844L/883B is a current-mode PWM controller designed for DC-DC and off-line power supplies. It operates within a wide temperature range.
Mfr Part #:

UC1844L/883B

Available from 1 distributors
Mfr Name: Texas Instruments
Texas Instruments
The Texas Instruments UC1844L/883B is a current-mode PWM controller designed for DC-DC and off-line power supplies. It operates within a wide temperature range.
✓ Total Stock: 20 pcs
$ Price Range: $0.78

UC1844L/883B Available from 1 distributor

✓ Authorised
✓ Non-Authorised
Distributor Stock Pricing MOQ PKG Lead Time Date Code On Order Quantity On Order Delivery
Bristol Electronics ✓
Non-Authorised Inventory information
20 pcs
On Request
20 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.

UC1844L/883B Specifications Quick View

Most important parameters for selection – full specs in datasheet.
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Industrial Grade
Military Grade
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UC1844L/883B Description

Short technical summary and product information.

The UC1844L/883B from Texas Instruments is a current-mode Pulse Width Modulation (PWM) controller. It is optimized for both off-line and DC-to-DC converter applications.

 

Key electrical specifications include a maximum duty cycle of 50% and a maximum operating frequency of 500 kHz. The control method is current-based, offering features like automatic feedforward compensation and pulse-by-pulse current limiting.

 

This device is specified for operation across a wide temperature range, from -55°C to 125°C. It comes in a 20-LCCC package suitable for surface mounting.

 

The UCx84x family, to which this part belongs, offers various package options and temperature ranges. Devices with higher hysteresis are suitable for off-line power supplies, while those with narrower hysteresis are ideal for DC-DC applications.

UC1844L/883B Quick Information

Product Type: DC DC Switching Controller
Series: UCx84x
Canonical Name: UC1844L/883B Current-Mode PWM Controller
Subcategory: Current-Mode PWM Controllers

UC1844L/883B Compliance

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

UC1844L/883B Estimated Pricing

Qty Low High
1+ $0.78 $0.78

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

UC1844L/883B Features

  • Current mode PWM controller.
  • Maximum duty cycle of 50%.
  • Maximum frequency of 500 kHz.
  • Wide operating temperature range.
  • Surface mount LCCC package.

UC1844L/883B Applications

  • Used in off-line AC-DC power supplies
  • Suitable for DC-DC converter designs
  • Optimized for current-mode PWM control
  • Ideal for industrial power management systems
  • Operates in extreme temperature environments

UC1844L/883B FAQs

6 frequently asked questions generated from this part’s specifications.
What is the package type of the UC1844L/883B?

The UC1844L/883B is packaged in a 20-LCCC (Leadless Ceramic Chip Carrier).

What is the operating temperature range?

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

What is the maximum switching frequency?

The maximum switching frequency is 500kHz.

What is the maximum duty cycle?

The maximum duty cycle is 50%.

What control method does the UC1844L/883B use?

It uses current mode control.

Is the UC1844L/883B surface mount?

Yes, it is surface mount.

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