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UC2845D8TR The Texas Instruments UC2845D8TR is a current mode PWM controller designed for DC-to-DC converters. It operates at frequencies up to 500kHz and features robust control mechanisms.
Mfr Part #:

UC2845D8TR

Available from 3 distributors
Mfr Name: Texas Instruments
Texas Instruments
The Texas Instruments UC2845D8TR is a current mode PWM controller designed for DC-to-DC converters. It operates at frequencies up to 500kHz and features robust control mechanisms.
✓ Total Stock: 90,615 pcs
$ Price Range: $0.27

UC2845D8TR Available from 3 distributors

✓ Authorised
✓ Non-Authorised
Distributor Stock Pricing MOQ PKG Lead Time Date Code On Order Quantity On Order Delivery
Romaks Technologies ✓
Non-Authorised Inventory information
78,609 pcs
On Request
78609 pcs On Request 1 On Request On Request On Request On Request On Request
Smaxon Electronics ✓
Non-Authorised Inventory information
10,536 pcs
On Request
10536 pcs On Request 1 On Request On Request 1040+ On Request On Request
Xingangxin ✓
Non-Authorised Inventory information
1,470 pcs
On Request
1470 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.

UC2845D8TR 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
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UC2845D8TR Description

Short technical summary and product information.

The UC2845D8TR from Texas Instruments is a single-ended, current mode PWM controller optimized for off-line and DC-to-DC converter applications. It operates at frequencies up to 500kHz and supports a wide voltage range of 12V to 28V.

 

Key features include a low start-up current of less than 1mA, automatic feedforward compensation, and pulse-by-pulse current limiting for enhanced load response. The device also incorporates undervoltage lockout with hysteresis and double-pulse suppression for reliable operation.

 

This controller is suitable for various topologies including Boost, Buck, Flyback, and Forward converters. It is housed in an 8-SOIC package and operates within a temperature range of -40°C to 85°C. The output stage is a high-current totem-pole design capable of sourcing or sinking high-peak currents, designed for driving N-channel MOSFETs.

UC2845D8TR Quick Information

Product Type: DC DC Switching Controller
Canonical Name: UC2845D8TR Current Mode PWM Controller
Subcategory: Current Mode

UC2845D8TR Compliance

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

UC2845D8TR Estimated Pricing

Qty Low High
1+ $0.27 $0.27

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

UC2845D8TR Features

  • Operates up to 500kHz frequency.
  • Supports Boost, Buck, Flyback, Forward topologies.
  • Features undervoltage lockout with hysteresis.
  • Low start-up current less than 1mA.
  • Housed in an 8-SOIC package.

UC2845D8TR Applications

  • Optimized for off-line converters.
  • Suitable for DC-to-DC power supplies.
  • Used in switching regulator designs.
  • Enables robust current control.

UC2845D8TR FAQs

6 frequently asked questions generated from this part’s specifications.
What is the operating voltage range for the UC2845D8TR?

The operating voltage range is 12V to 28V.

What is the maximum operating frequency of the UC2845D8TR?

The UC2845D8TR operates at frequencies up to 500kHz.

What is the operating temperature range for this PWM controller?

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

What package type is the UC2845D8TR available in?

The UC2845D8TR is available in an 8-SOIC package.

What topologies can the UC2845D8TR be used in?

The UC2845D8TR can be used in Boost, Buck, Flyback, and Forward topologies.

Does the UC2845D8TR have undervoltage lockout?

Yes, it features undervoltage lockout with hysteresis.

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