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UCC3802N The Texas Instruments UCC3802N is a low-power, BiCMOS current-mode PWM controller designed for off-line and DC-to-DC power supplies. It operates at frequencies up to 1MHz.
Mfr Part #:

UCC3802N

Available from 1 distributors
Mfr Name: Texas Instruments
Texas Instruments
The Texas Instruments UCC3802N is a low-power, BiCMOS current-mode PWM controller designed for off-line and DC-to-DC power supplies. It operates at frequencies up to 1MHz.
✓ Total Stock: 3,200 pcs
$ Price Range: $0.75

UCC3802N 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
3,200 pcs
On Request
3200 pcs On Request 1 On Request On Request On Request On Request On Request
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UCC3802N Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
Manufacturer Name
Control Features
Duty Cycle
Fault Protection
Frequency
Internal Switch(s)
Lead Spacing
Mounting Type
Operating Temperature
Response Time
Supplier Device Package
Tape & Reel
Topology
Voltage
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UCC3802N Description

Short technical summary and product information.

The UCC3802N from Texas Instruments is a high-speed, low-power integrated circuit that provides the necessary control and drive components for fixed-frequency current-mode switching power supplies. It is suitable for both off-line and DC-to-DC applications, requiring minimal external parts.

 

Key electrical specifications include a typical operating supply current of 500µA and a typical starting supply current of 100µA. The device supports operation up to 1MHz with a maximum duty cycle of 99%. It features a typical gate drive of 1A and a response time from current-sense to gate drive output of 70ns. The supply voltage range is 8.3V to 12V, with UVLO thresholds at 12.5V/8.3V.

 

This controller supports multiple topologies including Boost, Buck, Flyback, and Forward converters. Special features include an error amplifier, leading-edge blanking, multi-topology support, and soft start functionality. The operating temperature range is specified as 0°C to 70°C, though some sources indicate -40°C to 85°C.

 

The UCC3802N is packaged in an 8-PDIP (0.300", 7.62mm) through-hole mount configuration. The package quantity is 50 units per tube.

UCC3802N Quick Information

Product Type: AC DC Converters, Offline Switches
Series: UCC3802
Canonical Name: UCC3802N Low-Power BiCMOS Current-Mode PWM Controller
Subcategory: Current-Mode

UCC3802N Compliance

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

UCC3802N Estimated Pricing

Qty Low High
1+ $0.75 $0.75

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

UCC3802N Features

  • Low-power BiCMOS current-mode PWM controller.
  • Operates at frequencies up to 1MHz.
  • Supports Boost, Buck, Flyback, Forward topologies.
  • Internal soft start and fault protection.
  • 8-PDIP through-hole package.

UCC3802N Applications

  • Used in off-line power supplies.
  • Suitable for DC-to-DC converters.
  • Ideal for multi-topology designs.
  • Enables fixed-frequency operation.

UCC3802N FAQs

7 frequently asked questions generated from this part’s specifications.
What is the supply voltage range of the UCC3802N?

The supply voltage range is 8.3V to 12V.

What packages are available for the UCC3802N?

The UCC3802N is available in 8-PDIP and 8-DIP (0.300", 7.62mm) packages.

What are the operating temperature ranges of the UCC3802N?

Two operating temperature ranges are specified: 0°C to 70°C and -40°C to 85°C.

What is the typical supply current of the UCC3802N?

The typical operating supply current is 500µA, with a starting supply current of 100µA.

What is the gate drive current of the UCC3802N?

The typical gate drive current is 1A.

What is the response time of the UCC3802N?

The typical response time from current-sense to gate drive output is 70ns.

What topologies does the UCC3802N support?

It supports boost, buck, flyback, and forward topologies.

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