DistyParts Icon
UC3845BD1R2G The ON Semiconductor UC3845BD1R2G is a high-performance fixed frequency current mode controller designed for Off-Line and DC-DC converter applications. It offers a cost-effective solution with minimal external components.
Mfr Part #:

UC3845BD1R2G

Available from 3 distributors
Mfr Name: On Semiconductor
On Semiconductor
The ON Semiconductor UC3845BD1R2G is a high-performance fixed frequency current mode controller designed for Off-Line and DC-DC converter applications. It offers a cost-effective solution with minimal external components.
✓ Total Stock: 63,980 pcs
$ Price Range: $0.78

UC3845BD1R2G Available from 3 distributors

✓ Authorised
✓ Non-Authorised
Distributor Stock Pricing MOQ PKG Lead Time Date Code On Order Quantity On Order Delivery
Fe Components ✓
Non-Authorised Inventory information
60,000 pcs
On Request
60000 pcs On Request 1 On Request On Request On Request On Request On Request
PROSOFT ELECTRONICS ✓
Non-Authorised Inventory information
2,500 pcs
On Request
2500 pcs On Request 1 On Request On Request On Request On Request On Request
Xingangxin ✓
Non-Authorised Inventory information
1,480 pcs
On Request
1480 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.

UC3845BD1R2G 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
View Similar Products (0)

UC3845BD1R2G Description

Short technical summary and product information.

The UC3845BD1R2G from ON Semiconductor is a high-performance, fixed-frequency current mode controller. It is engineered for both Off-Line and DC-DC converter applications, providing a cost-effective design with minimal external components. This integrated circuit includes an oscillator, a temperature-compensated reference, a high-gain error amplifier, a current sensing comparator, and a high-current totem pole output suitable for driving power MOSFETs.

 

Key features include undervoltage lockouts with hysteresis, cycle-by-cycle current limiting, and adjustable output deadtime from 50% to 70%. The device operates with a voltage range of 7.6V to 30V and supports switching frequencies up to 500kHz. The UC3845B variant is tailored for lower voltage applications with UVLO thresholds of 8.5V (on) and 7.6V (off).

 

This controller is available in an 8-pin SOIC surface mount package, making it suitable for space-constrained designs. Its robust feature set and reliable performance make it a versatile choice for various power supply designs.

UC3845BD1R2G Quick Information

Product Type: DC DC Switching Controller
Canonical Name: UC3845BD1R2G High Performance Current Mode Controller
Subcategory: DC DC Switching Controllers

UC3845BD1R2G Compliance

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

UC3845BD1R2G Estimated Pricing

Qty Low High
1+ $0.78 $0.78

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

UC3845BD1R2G Features

  • High performance current mode controller.
  • Designed for DC-DC converter applications.
  • Operates up to 500kHz switching frequency.
  • Adjustable output deadtime 50% to 70%.
  • Surface mount 8-SOIC package.

UC3845BD1R2G Applications

  • Ideal for Off-Line converters.
  • Suitable for DC-DC converters.
  • Cost-effective power solutions.
  • Driving power MOSFETs.

UC3845BD1R2G FAQs

6 frequently asked questions generated from this part’s specifications.
What is the operating voltage range for the UC3845BD1R2G?

The operating voltage range is 7.6V to 30V.

What is the maximum switching frequency for this controller?

The controller can operate at frequencies up to 500kHz.

What is the maximum duty cycle for the UC3845BD1R2G?

The maximum duty cycle is 48%.

What is the operating temperature range?

The operating temperature range is 0°C to 70°C (TA).

What type of package is the UC3845BD1R2G in?

It is in an 8-SOIC package with a width of 0.154 inches (3.90mm).

What are the UVLO thresholds for the UC3845B?

The UVLO thresholds for the UC3845B are 8.5V (on) and 7.6V (off).

UC3845BD1R2G Alternate Parts

Same form/fit/function or matching attribute configuration across different manufacturers.
View All Alternate Parts
UC3845BD1G
UC3845BD1G
On Semiconductor
The ON Semiconductor UC3845BD1G is a high-performance fixed-frequency current mode controller designed for off-line and DC-DC converter applications. It offers a voltage range of 7.6V to 30V and operates at frequencies up to 500kHz.
View Part
Home

Categories