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UCC38C45DR The Texas Instruments UCC38C45DR is a low-power, current-mode PWM controller designed for various power supply topologies. It operates within a voltage range of 7.6V to 18V and supports frequencies up to 1MHz.
Mfr Part #:

UCC38C45DR

Available from 2 distributors
Mfr Name: Texas Instruments
Texas Instruments
The Texas Instruments UCC38C45DR is a low-power, current-mode PWM controller designed for various power supply topologies. It operates within a voltage range of 7.6V to 18V and supports frequencies up to 1MHz.
✓ Total Stock: 41,359 pcs
$ Price Range: $0.35

UCC38C45DR Available from 2 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
40,178 pcs
On Request
40178 pcs On Request 1 On Request On Request On Request On Request On Request
MW.FEP S.p.A. ✓
Non-Authorised Inventory information
1,181 pcs
On Request
1181 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.

UCC38C45DR Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
Manufacturer Name
Clock Sync
Conflict Minerals
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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UCC38C45DR Description

Short technical summary and product information.

The UCC38C45DR from Texas Instruments is a high-performance, current-mode PWM controller. It is an enhanced BiCMOS version offering pin-for-pin compatibility with the industry-standard UCx84xA and UCx84x families. This controller is suitable for multiple topologies including Boost, Buck, Flyback, and Forward converters.

 

Key electrical specifications include an operating voltage range of 7.6V to 18V, a maximum duty cycle of 48%, and an adjustable switching frequency up to 1MHz. It features fast, cycle-by-cycle overcurrent limiting with a 35ns response time and a peak driving current of ±1A. The device also includes undervoltage lockout protections and a precise 2.5V error amplifier reference.

 

Packaged in an 8-SOIC (0.154", 3.90mm Width) surface-mount package, the UCC38C45DR is designed for efficient power management applications. Its low operating current and enhanced BiCMOS technology contribute to improved efficiency and faster performance compared to older generations.

UCC38C45DR Quick Information

Product Type: DC DC Switching Controller
Canonical Name: UCC38C45DR Current-Mode PWM Controller
Subcategory: DC DC Switching Controllers

UCC38C45DR Compliance

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

UCC38C45DR Estimated Pricing

Qty Low High
1+ $0.35 $0.35

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

UCC38C45DR Features

  • Low-power current-mode PWM controller.
  • Supports Boost, Flyback, Forward topologies.
  • Operates up to 1MHz switching frequency.
  • Fast cycle-by-cycle overcurrent limiting.
  • Surface mount 8-SOIC package.

UCC38C45DR Applications

  • Ideal for AC/DC switching regulators.
  • Suitable for DC/DC power modules.
  • Used in multi-topology power supplies.
  • Efficient power management designs.

UCC38C45DR FAQs

7 frequently asked questions generated from this part’s specifications.
What is the operating voltage range of the UCC38C45DR?

The UCC38C45DR operates from 7.6V to 18V.

What is the maximum switching frequency of the UCC38C45DR?

The maximum switching frequency is 1MHz.

What is the operating temperature range of the UCC38C45DR?

The operating temperature range is 0°C to 70°C.

What package is the UCC38C45DR available in?

The UCC38C45DR is available in an 8-SOIC surface-mount package.

What topologies does the UCC38C45DR support?

The UCC38C45DR supports boost, flyback, and forward converter topologies.

What is the maximum duty cycle of the UCC38C45DR?

The maximum duty cycle is 48%.

Does the UCC38C45DR have undervoltage lockout protection?

Yes, the UCC38C45DR includes undervoltage lockout protection.

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