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UC3842AN The Texas Instruments UC3842AN is a current mode PWM controller designed for off-line and DC-DC converters. It operates within a voltage range of 10V to 30V and features a maximum duty cycle of 96%.
Mfr Part #:

UC3842AN

Available from 2 distributors
Mfr Name: Texas Instruments
Texas Instruments
The Texas Instruments UC3842AN is a current mode PWM controller designed for off-line and DC-DC converters. It operates within a voltage range of 10V to 30V and features a maximum duty cycle of 96%.
✓ Total Stock: 4,960 pcs
$ Price Range: $0.67

UC3842AN Available from 2 distributors

✓ 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
4,000 pcs
On Request
4000 pcs On Request 1 On Request On Request On Request On Request On Request
Xingangxin ✓
Non-Authorised Inventory information
960 pcs
On Request
960 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.

UC3842AN 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
Output Configuration
Output Phases
Output Type
Supplier Device Package
Synchronous Rectifier
Topology
Voltage
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UC3842AN Description

Short technical summary and product information.

The UC3842AN from Texas Instruments is a versatile current mode PWM controller suitable for various power supply applications, including Boost, Buck, Flyback, and Forward topologies. It is optimized for off-line and DC-DC converters, offering a wide operating voltage range from 10V to 30V and a maximum duty cycle of 96%.

 

This controller operates at frequencies up to 500kHz and features essential control functions such as frequency control. It is designed for through-hole mounting and comes in an 8-PDIP package (8-DIP (0.300", 7.62mm)). The operating temperature range is from 0°C to 70°C.

 

Key features include a low start-up current of less than 0.5mA and a trimmed oscillator discharge current of 8.3mA. During undervoltage lockout (UVLO), the output stage can sink at least 10mA at less than 1.2V for VCC over 5V. The UC3842AN is an improved version of the UCx84x family, providing enhanced features for current-mode power supply control.

UC3842AN Quick Information

Product Type: DC DC Switching Controller
Canonical Name: UC3842AN Current Mode PWM Controller
Subcategory: DC DC Switching Controllers

UC3842AN Compliance

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

UC3842AN Estimated Pricing

Qty Low High
1+ $0.67 $0.67

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

UC3842AN Features

  • Current mode PWM controller for power supplies.
  • Supports Boost, Buck, Flyback, and Forward topologies.
  • Operates at frequencies up to 500kHz.
  • Wide voltage range of 10V to 30V.
  • Through-hole mounting in 8-PDIP package.

UC3842AN Applications

  • Ideal for off-line converters.
  • Suitable for DC-DC power supplies.
  • Used in switching regulator designs.
  • Enables flexible power conversion circuits.

UC3842AN FAQs

6 frequently asked questions generated from this part’s specifications.
What is the operating voltage range for the UC3842AN?

The UC3842AN operates within a voltage range of 10V to 30V.

What is the maximum duty cycle of the UC3842AN?

The maximum duty cycle for the UC3842AN is 96%.

What is the operating temperature range for this PWM controller?

The UC3842AN operates in a temperature range of 0°C to 70°C.

What package type is the UC3842AN available in?

The UC3842AN is available in an 8-PDIP package.

What topologies does the UC3842AN support?

The UC3842AN supports Boost, Buck, Flyback, and Forward topologies.

What is the maximum operating frequency of the UC3842AN?

The UC3842AN can operate at frequencies up to 500kHz.

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