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UC3845AD8TR The Texas Instruments UC3845AD8TR is a current mode PWM controller designed for DC-DC converters. It operates within a 7.6V to 30V range and features a maximum duty cycle of 48%.
Mfr Part #:

UC3845AD8TR

Available from 6 distributors
Mfr Name: Texas Instruments
Texas Instruments
The Texas Instruments UC3845AD8TR is a current mode PWM controller designed for DC-DC converters. It operates within a 7.6V to 30V range and features a maximum duty cycle of 48%.
✓ Total Stock: 5,591 pcs
$ Price Range: $0.31

UC3845AD8TR Available from 6 distributors

✓ Authorised
✓ Non-Authorised
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.

UC3845AD8TR 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
Operating Voltage
Output Configuration
Output Phases
Output Type
Supplier Device Package
Supplier Package
Synchronous Rectifier
Tape & Reel
Topology
Voltage
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UC3845AD8TR Description

Short technical summary and product information.

The UC3845AD8TR from Texas Instruments is a versatile current mode PWM controller suitable for various DC-DC converter topologies including Boost, Buck, Flyback, and Forward. It operates efficiently with an input voltage range of 7.6V to 30V and supports frequencies up to 500kHz.

 

Key features include adjustable switching frequency, current limiting, dead time control, and an error amplifier, providing robust control capabilities. The device is housed in an 8-SOIC package, designed for surface mount applications. Its operating temperature range is from 0°C to 70°C.

 

This controller is optimized for off-line and DC-DC converters, offering features like low start-up current, automatic feedforward compensation, and undervoltage lockout with hysteresis. The high-current totem pole output ensures effective drive capabilities for switching elements.

UC3845AD8TR Quick Information

Product Type: DC DC Switching Controller
Series: UCx84xA
Canonical Name: UC3845AD8TR Current Mode PWM Controller
Subcategory: DC DC Switching Controllers

UC3845AD8TR Compliance

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

UC3845AD8TR Estimated Pricing

Qty Low High
1+ $0.31 $0.31

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

UC3845AD8TR Features

  • Current mode PWM controller for DC-DC converters.
  • Supports Boost, Buck, Flyback, and Forward topologies.
  • Operates from 7.6V to 30V input voltage.
  • Frequency up to 500kHz.
  • Surface mount 8-SOIC package.

UC3845AD8TR Applications

  • Optimized for off-line power supply designs.
  • Suitable for DC-DC converter applications.
  • Used in test and measurement equipment.
  • Ideal for flyback and forward converters.

UC3845AD8TR FAQs

7 frequently asked questions generated from this part’s specifications.
What is the operating voltage range for the UC3845AD8TR?

The operating voltage range is 7.6V to 30V.

What is the maximum operating temperature for the UC3845AD8TR?

The maximum operating temperature is 70°C.

What package type is the UC3845AD8TR available in?

The UC3845AD8TR is available in an 8-SOIC package.

What is the maximum duty cycle for the UC3845AD8TR?

The maximum duty cycle is 48%.

What is the switching frequency of the UC3845AD8TR?

The switching frequency is up to 500kHz.

What control features does the UC3845AD8TR offer?

The UC3845AD8TR offers frequency control.

What type of output does the UC3845AD8TR have?

The output type is Transistor Driver.

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