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High-performance power management solution with 500kHz operating frequency and 7.6V to 30V input range

ISO14001 ISO9001 DUNS

Brands: ON

Mfr.Part #: UC3845BVD1R2G

Datasheet: UC3845BVD1R2G Datasheet (PDF)

Package/Case: SOP-8

Product Type: DC DC Switching Controllers

RoHS Status:

Stock Condition: 2,015 pcs, New Original

Warranty: 1 Year Ovaga Warranty - Find Out More

Quick Quote

Please submit RFQ for UC3845BVD1R2G or email to us: Email: [email protected], we will contact you within 12 hours.

UC3845BVD1R2G General Description

The PWM controller is furnished with a flexible frequency programmable oscillator, allowing users to fine-tune the device's performance to meet specific application demands effectively. Moreover, the UC3845BVD1R2G incorporates an adjustable soft-start function, facilitating a controlled and smooth start-up sequence that minimizes stress on integral components and ensures optimal system performance



  • Regulated Output Voltage with Low Ripple
  • Adjustable Frequency and PWM Duty Cycle
  • Synchronous Rectification for Efficient Operation
  • Precision Reference with Low Drift
  • Overcurrent Protection with Hysteresis
  • Cycle-By-Cycle Current Limiting for Efficiency


  • Efficient power regulation
  • Essential for power circuits
  • Compact and reliable IC


Parameter Value Parameter Value
Status Active Compliance PbAHP
Package Type SOIC-8 Case Outline 751-07
MSL Type 1 MSL Temp (°C) 260
Container Type REEL Container Qty. 2500
ON Target N Topology Step-Up
Control Mode Current Mode fsw Typ (kHz) 52
Stand-by Mode No UVLO (V) Yes
Short Circuit Protection Yes Latch No
Soft Start Yes VCC Max (V) 25
Drive Cap. (mA) 200 / 200


Shipping Type Ship Fee Lead Time
DHL DHL $20.00-$40.00 (0.50 KG) 2-5 days
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UPS UPS $20.00-$40.00 (0.50 KG) 2-5 days
TNT TNT $20.00-$40.00 (0.50 KG) 2-5 days
EMS EMS $20.00-$40.00 (0.50 KG) 2-5 days
REGISTERED AIR MAIL REGISTERED AIR MAIL $20.00-$40.00 (0.50 KG) 2-5 days

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Terms of payment Hand Fee
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Credit Card Credit Card charge 3.5% service fee.
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1.The electronic components you purchase include 365 Days Warranty, We guarantee product quality.

2.If some of the items you received aren't of perfect quality, we would resiponsibly arrange your refund or replacement. But the items must remain their orginal condition.


  • Product

    Step1 :Product

  • Vacuum packaging

    Step2 :Vacuum packaging

  • Anti-static bag

    Step3 :Anti-static bag

  • Individual packaging

    Step4 :Individual packaging

  • Packaging boxes

    Step5 :Packaging boxes

  • bar-code shipping tag

    Step6 :bar-code shipping tag

All the products will packing in anti-staticbag. Ship with ESD antistatic protection.

Outside ESD packing’s lable will use ourcompany’s information: Part Mumber, Brand and Quantity.

We will inspect all the goods before shipment,ensure all the products at good condition and ensure the parts are new originalmatch datasheet.

After all the goods are ensure no problems afterpacking, we will packing safely and send by global express. It exhibitsexcellent puncture and tear resistance along with good seal integrity.

  • ESD
  • ESD

Part points

  • The UC3845BVD1R2G chip is a voltage mode PWM controller commonly used in switch-mode power supplies. It operates at high frequencies, allowing for efficient power conversion. Key features include adjustable frequency, cycle-by-cycle current limiting, and a totem pole output stage for driving power MOSFETs. This chip is widely used in various applications requiring precise voltage control and regulation.
  • Features

    The UC3845BVD1R2G is a voltage mode PWM controller featuring high speed operation, wide input voltage range, and low start-up current. It includes an error amplifier, an adjustable oscillator, a PWM comparator, a dead-time comparator, a soft-start circuit, and an output control function.
  • Pinout

    The UC3845BVD1R2G is a pulse-width modulation (PWM) controller IC with a 16-pin count. It is commonly used for controlling switch-mode power supplies. The precise pin functions can be found in the datasheet of the IC provided by the manufacturer.
  • Manufacturer

    The manufacturer of the UC3845BVD1R2G is ON Semiconductor. ON Semiconductor is a semiconductor manufacturing company that specializes in a wide range of products, including power management, analog, discrete, logic, and custom devices.
  • Application Field

    The UC3845BVD1R2G is a PWM controller primarily used in switching power supply applications. Its main application areas include power adapters, LED lighting, telecommunication power supplies, automotive power systems, and general-purpose power converters. It provides precise control over the switching frequency, duty cycle, and voltage regulation, making it suitable for various power management applications.
  • Package

    The UC3845BVD1R2G chip is available in a SOIC-8 package type, which measures approximately 3.9mm x 4.9mm in size.

Datasheet PDF

Preliminary Specification UC3845BVD1R2G PDF Download

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