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UC2842AD8 The Unitrode UC2842AD8 is a fixed frequency current-mode PWM controller designed for off-line and DC-to-DC converter applications. It operates with a wide voltage range and offers a high switching frequency.
Mfr Part #:

UC2842AD8

Available from 1 distributors
Mfr Name: Unitrode
Unitrode
The Unitrode UC2842AD8 is a fixed frequency current-mode PWM controller designed for off-line and DC-to-DC converter applications. It operates with a wide voltage range and offers a high switching frequency.
✓ Total Stock: 5 pcs
$ Price Range: $1.92

UC2842AD8 Available from 1 distributor

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UC2842AD8 Specifications Quick View

Most important parameters for selection – full specs in datasheet.
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UC2842AD8 Description

Short technical summary and product information.

The UC2842AD8 from Unitrode is a fixed-frequency, current-mode Pulse Width Modulation (PWM) controller. This IC is engineered for efficiency in off-line and DC-to-DC converter applications, requiring minimal external components for operation.

 

Key electrical specifications include an operating voltage range of 12V to 28V, a maximum output pin current of 200 mA, and a switching frequency of up to 500 kHz. It supports a maximum duty cycle of 100% and has an operating supply current of 25 mA. The device features a high-current totem-pole output.

 

Designed with flexibility in mind, the UC2842AD8 offers various package options and temperature ranges. Its internal oscillator can be set using external resistor and capacitor components connected to the RT/CT pin. The COMP pin serves as an output for a low-impedance signal based on voltage feedback, while the V FB pin is an input to the internal error amplifier. A current sense pin allows for monitoring circuit current via a shunt resistor.

 

This controller is suitable for applications demanding precise power management and regulation. Its robust design and feature set make it a reliable choice for power supply designs.

UC2842AD8 Quick Information

Product Type: Current Mode PWM Controller
Canonical Name: UC2842AD8 Current Mode PWM Controller
Subcategory: Current Mode

UC2842AD8 Compliance

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

UC2842AD8 Estimated Pricing

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1+ $1.92 $1.92

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

UC2842AD8 Features

  • Fixed frequency current-mode PWM controller.
  • Optimized for off-line and DC-to-DC converters.
  • Wide operating voltage range of 12V to 28V.
  • High switching frequency up to 500 kHz.
  • Supports 100% maximum duty cycle.

UC2842AD8 Applications

  • Used in off-line power supplies.
  • Suitable for DC-to-DC converters.
  • Power management circuits.
  • Switching power supply designs.

UC2842AD8 FAQs

6 frequently asked questions generated from this part’s specifications.
What is the operating voltage range for the UC2842AD8?

The operating voltage range for the UC2842AD8 is 12V to 28V.

What is the maximum switching frequency of the UC2842AD8?

The maximum switching frequency of the UC2842AD8 is 500 kHz.

What is the maximum duty cycle supported by the UC2842AD8?

The UC2842AD8 supports a maximum duty cycle of 100%.

What is the output pin current for the UC2842AD8?

The output pin current for the UC2842AD8 is 200 mA.

What is the typical supply current for the UC2842AD8?

The typical operating supply current for the UC2842AD8 is 25 mA.

What package type is the UC2842AD8 available in?

The UC2842AD8 is available in an 8-pin package.

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