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UCC3805D The Texas Instruments UCC3805D is a current mode PWM controller designed for DC/DC switching applications. It operates within a voltage range of 3.6V to 12V and features a maximum duty cycle of 49%.
Mfr Part #:

UCC3805D

Available from 1 distributors
Mfr Name: Texas Instruments
Texas Instruments
The Texas Instruments UCC3805D is a current mode PWM controller designed for DC/DC switching applications. It operates within a voltage range of 3.6V to 12V and features a maximum duty cycle of 49%.
✓ Total Stock: 3,566 pcs
$ Price Range: $1.56

UCC3805D Available from 1 distributor

✓ Authorised
✓ Non-Authorised
Distributor Stock Pricing MOQ PKG Lead Time Date Code On Order Quantity On Order Delivery
Components Technology Group, Inc. ✓
Non-Authorised Inventory information
3,566 pcs
On Request
3566 pcs On Request 1 On Request On Request On Request On Request On Request
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UCC3805D Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
Manufacturer Name
Clock Sync
Control Features
Duty Cycle (Max)
Frequency
Function
Lead Spacing
Lead Style
Mounting Type
Number of Outputs
Operating Temperature
Output Configuration
Output Phases
Output Type
Supplier Device Package
Synchronous Rectifier
Topology
Voltage
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UCC3805D Description

Short technical summary and product information.

The Texas Instruments UCC3805D is a versatile current mode PWM controller suitable for various DC/DC power supply topologies including Buck, Boost, Flyback, and Forward converters. It operates efficiently within a voltage range of 3.6V to 12V and supports a maximum duty cycle of 49%.

 

This controller features a 1MHz switching frequency and a 1A totem-pole output, ensuring robust performance. Key electrical characteristics include a typical startup current of 100µA and an operating current of 500µA, making it suitable for low-power applications. The device also offers a typical response time of 70ns from current-sense to gate drive output and a voltage reference with 1.5% tolerance.

 

Packaged in an 8-SOIC surface mount configuration, the UCC3805D is designed for ease of integration into printed circuit boards. Its operating temperature range is from 0°C to 70°C, providing reliable operation in moderate environmental conditions. The controller's functionality includes adjustable switching frequency, current limiting, dead time control, error amplifier, fixed frequency operation, leading-edge blanking, multi-topology support, and soft start.

UCC3805D Quick Information

Product Type: DC DC Switching Controller
Series: UCC3805
Canonical Name: UCC3805D Current Mode PWM Controller
Subcategory: Current Mode

UCC3805D Compliance

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

UCC3805D Estimated Pricing

Qty Low High
1+ $1.56 $1.56

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

UCC3805D Features

  • Current mode PWM controller for DC/DC.
  • Supports multiple power supply topologies.
  • Operates from 3.6V to 12V input.
  • Maximum duty cycle of 49%.
  • Surface mount 8-SOIC package.

UCC3805D Applications

  • Ideal for step-up converters.
  • Suitable for step-down converters.
  • Used in flyback power supplies.
  • Applicable to forward converters.

UCC3805D FAQs

7 frequently asked questions generated from this part’s specifications.
What is the operating voltage range for the UCC3805D?

The operating voltage range for the UCC3805D is 3.6V to 12V.

What is the maximum duty cycle of the UCC3805D?

The maximum duty cycle for the UCC3805D is 49%.

What is the operating temperature range for the UCC3805D?

The UCC3805D operates within a temperature range of 0°C to 70°C.

What package type is the UCC3805D available in?

The UCC3805D is available in an 8-SOIC package.

What power supply topologies does the UCC3805D support?

The UCC3805D supports Buck, Boost, Flyback, and Forward converter topologies.

What is the typical startup current for the UCC3805D?

The typical startup supply current for the UCC3805D is 100µA.

What is the typical operating supply current for the UCC3805D?

The typical operating supply current for the UCC3805D is 500µA.

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