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UC2845AQD8 The Texas Instruments UC2845AQD8 is a current-mode PWM controller designed for switch mode power supplies and DC-DC converters. It operates at frequencies up to 500kHz and supports a wide voltage range.
Mfr Part #:

UC2845AQD8

Available from 1 distributors
Mfr Name: Texas Instruments
Texas Instruments
The Texas Instruments UC2845AQD8 is a current-mode PWM controller designed for switch mode power supplies and DC-DC converters. It operates at frequencies up to 500kHz and supports a wide voltage range.
✓ Total Stock: 48,865 pcs
$ Price Range: $0.80

UC2845AQD8 Available from 1 distributor

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✓ Non-Authorised
Distributor Stock Pricing MOQ PKG Lead Time Date Code On Order Quantity On Order Delivery
Romaks Technologies ✓
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48,865 pcs
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48865 pcs On Request 1 On Request On Request On Request On Request On Request
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UC2845AQD8 Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
Manufacturer Name
AEC Qualified
Automotive Grade
Clock Sync
Control Features
Duty Cycle (Max)
Frequency
Function
Mounting Type
Number of Outputs
Operating Temperature
Output Configuration
Output Phases
Output Type
Supplier Device Package
Supplier Package
Synchronous Rectifier
Topology
Voltage
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UC2845AQD8 Description

Short technical summary and product information.

The UC2845AQD8 from Texas Instruments is a versatile current-mode Pulse Width Modulation (PWM) controller. It is optimized for off-line and DC-to-DC converters, including switch mode power supplies (SMPS), power modules, industrial PSUs, and battery-operated PSUs.

 

This controller features a wide operating voltage range of 7.6V to 30V and can operate at frequencies up to 500kHz. It supports multiple topologies including Boost, Buck, Flyback, and Forward configurations. Key electrical features include a low startup current of less than 0.5mA, trimmed oscillator discharge current, and automatic feed-forward compensation.

 

The UC2845AQD8 is housed in an 8-SOIC package, designed for surface mount applications. It offers features such as pulse-by-pulse current limiting, enhanced load response characteristics, under-voltage lockout with hysteresis, double pulse suppression, and a high-current totem pole output. The extended temperature performance ranges from -40°C to 125°C (TJ).

UC2845AQD8 Quick Information

Product Type: DC DC Switching Controller
Canonical Name: UC2845AQD8 Current-mode PWM Controller
Subcategory: Current Mode

UC2845AQD8 Compliance

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

UC2845AQD8 Estimated Pricing

Qty Low High
1+ $0.80 $0.80

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

UC2845AQD8 Features

  • Current-mode PWM controller for SMPS.
  • Operates up to 500kHz frequency.
  • Wide voltage range: 7.6V to 30V.
  • Supports Boost, Buck, Flyback topologies.
  • Surface mount 8-SOIC package.

UC2845AQD8 Applications

  • Optimized for DC-DC converters.
  • Used in switch mode power supplies.
  • Suitable for industrial PSUs.
  • Applicable to battery operated PSUs.

UC2845AQD8 FAQs

6 frequently asked questions generated from this part’s specifications.
What is the operating temperature range for the UC2845AQD8?

The operating temperature range is -40°C to 125°C (TJ).

What is the voltage range for the UC2845AQD8?

The voltage range is 7.6V to 30V.

What is the maximum operating frequency of the UC2845AQD8?

The UC2845AQD8 operates at frequencies up to 500kHz.

What is the maximum duty cycle for the UC2845AQD8?

The maximum duty cycle for the UC2845AQD8 is 48%.

What topologies does the UC2845AQD8 support?

The UC2845AQD8 supports Boost, Buck, Flyback, and Forward topologies.

What package type is the UC2845AQD8 available in?

The UC2845AQD8 is available in an 8-SOIC package.

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