UC3845A The ST UC3845A is a Current Mode PWM Controller designed for various power supply applications. It operates within a voltage range of 12V to 30V and features a maximum frequency of 500kHz.
Mfr Part #:

UC3845A

Available from 1 distributors
Mfr Name: STMicroelectronics
STMicroelectronics
The ST UC3845A is a Current Mode PWM Controller designed for various power supply applications. It operates within a voltage range of 12V to 30V and features a maximum frequency of 500kHz.
✓ Total Stock: 19 pcs
$ Price Range: $1.92

UC3845A Available from 1 distributor

✓ Authorised
✓ Non-Authorised
Distributor Stock Pricing MOQ PKG Lead Time Date Code On Order Quantity On Order Delivery
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19 pcs
19 pcs On Request 1 On Request On Request On Request On Request On Request

UC3845A Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
Manufacturer Name
Frequency
Output Type
Output Voltage
Quiescent Current
Storage Temperature
Tape & Reel

UC3845A Description

Short technical summary and product information.

The STMicroelectronics UC3845A is a high-performance Current Mode PWM Controller. It is designed for off-line applications and features specific UVLO thresholds suitable for various power supply designs. The device operates within a minimum voltage of 12V and a maximum voltage of 30V, with a nominal input voltage of 25V. Its output voltage is rated at 5.1V, and it offers a typical quiescent current of 11mA. The controller supports a maximum operating frequency of 500kHz, with a typical frequency of 450kHz and a rise time of 50ns. The output stage is a TOTEM POLE type. The operating temperature range is from 0°C to 70°C. This component is supplied in a SOIC package, making it suitable for surface mounting.

 

This PWM controller is ideal for switch-mode power supplies, offering precise control over voltage and frequency. Its robust design and operating parameters make it a reliable choice for power management solutions in a wide range of electronic equipment. The SOIC package facilitates integration into compact designs.

UC3845A Quick Information

Product Type: Current Mode PWM Controller
Canonical Name: UC3845A Current Mode PWM Controller
Subcategory: PWM Controller

UC3845A Compliance

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

UC3845A Estimated Pricing

Qty Low High
1+ $1.92 $1.92

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

UC3845A Features

  • Current Mode PWM Controller
  • 12V to 30V operating voltage
  • 5.1V output voltage
  • Up to 500kHz maximum frequency
  • SOIC package for surface mounting

UC3845A Applications

  • Switch-mode power supplies
  • Off-line power applications
  • Power management solutions
  • Electronic equipment power control

UC3845A FAQs

5 frequently asked questions generated from this part’s specifications.
What is the operating voltage range for the UC3845A?

The UC3845A operates between a minimum voltage of 12V and a maximum voltage of 30V.

What is the output voltage of the UC3845A?

The output voltage of the UC3845A is 5.1V.

What is the maximum operating frequency of the UC3845A?

The maximum operating frequency for the UC3845A is 500kHz.

What is the operating temperature range for the UC3845A?

The UC3845A can operate within a temperature range of 0°C to 70°C.

What package type is the UC3845A supplied in?

The UC3845A is supplied in a SOIC package.

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