DistyParts Icon
UC3845BVDG The UC3845BVDG from ON Semiconductor is a high-performance, fixed-frequency current mode controller designed for Off-Line and DC-DC converter applications. It offers a wide operating voltage range and is available in a 14-SOIC package.
Mfr Part #:

UC3845BVDG

Available from 1 distributors
Mfr Name: On Semiconductor
On Semiconductor
The UC3845BVDG from ON Semiconductor is a high-performance, fixed-frequency current mode controller designed for Off-Line and DC-DC converter applications. It offers a wide operating voltage range and is available in a 14-SOIC package.
✓ Total Stock: 17,435 pcs
$ Price Range: $0.78

UC3845BVDG Available from 1 distributor

✓ Authorised
✓ Non-Authorised
Distributor Stock Pricing MOQ PKG Lead Time Date Code On Order Quantity On Order Delivery
Flip Electronics ✓
Non-Authorised Inventory information
17,435 pcs
On Request
17435 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.

UC3845BVDG Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
Manufacturer Name
Clock Sync
Control Features
Duty Cycle (Max)
Frequency
Function
Lead Spacing
Lead Style
Mounting Type
Number of Outputs
Operating Temperature
Output Configuration
Output Phases
Output Type
Supplier Device Package
Synchronous Rectifier
Topology
Voltage
View Similar Products (0)

UC3845BVDG Description

Short technical summary and product information.

The UC3845BVDG is a high-performance current mode controller from ON Semiconductor, designed for efficient Off-Line and DC-DC converter applications. It operates with a wide input voltage range of 7.6V to 30V and supports switching frequencies up to 500kHz. The device features a trimmed oscillator for precise frequency control, adjustable output deadtime from 50% to 70%, and automatic feed-forward compensation.

 

Integrated protective features include undervoltage lockout with hysteresis, cycle-by-cycle current limiting, and a latching PWM for single pulse metering. The UC3845BVDG is available in a 14-SOIC package, suitable for surface mounting. Its design minimizes external component count, offering a cost-effective solution for power supply designs.

 

Key electrical characteristics include a maximum duty cycle of 48% and an oscillator frequency guaranteed at 250kHz. The controller is designed for applications requiring boost or flyback topologies, providing a positive, isolation-capable output. The operating temperature range is -40°C to 105°C (TA).

UC3845BVDG Quick Information

Product Type: DC DC Switching Controller
Series: UC3845B
Canonical Name: UC3845BVDG High Performance Current Mode Controller
Subcategory: Current Mode Controller

UC3845BVDG Compliance

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

UC3845BVDG Estimated Pricing

Qty Low High
1+ $0.78 $0.78

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

UC3845BVDG Features

  • High performance current mode controller.
  • Fixed frequency operation up to 500kHz.
  • Wide voltage range: 7.6V to 30V.
  • Adjustable output deadtime 50% to 70%.
  • Surface mount 14-SOIC package.

UC3845BVDG Applications

  • Ideal for Off-Line converters.
  • Suitable for DC-DC converter designs.
  • Used in boost topology applications.
  • Used in flyback topology applications.

UC3845BVDG FAQs

7 frequently asked questions generated from this part’s specifications.
What is the operating voltage range for the UC3845BVDG?

The operating voltage range for the UC3845BVDG is 7.6V to 30V.

What is the maximum switching frequency of the UC3845BVDG?

The UC3845BVDG can operate at switching frequencies up to 500kHz.

What package type is the UC3845BVDG available in?

The UC3845BVDG is available in a 14-SOIC package.

What is the operating temperature range for this controller?

The operating temperature range is -40°C to 105°C (TA).

What are the UVLO thresholds for the UC3845BVDG?

The UVLO thresholds are 8.5V (on) and 7.6V (off).

What is the guaranteed oscillator frequency?

The oscillator frequency is guaranteed at 250kHz.

What is the adjustable output deadtime range?

The output deadtime is adjustable from 50% to 70%.

Home

Categories