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UC3845BNG The ON Semiconductor UC3845BNG is a high-performance fixed-frequency current mode controller designed for off-line and DC-DC converter applications. It features a wide operating voltage range and supports Boost and Flyback topologies.
Mfr Part #:

UC3845BNG

Available from 3 distributors
Mfr Name: On Semiconductor
On Semiconductor
The ON Semiconductor UC3845BNG is a high-performance fixed-frequency current mode controller designed for off-line and DC-DC converter applications. It features a wide operating voltage range and supports Boost and Flyback topologies.
✓ Total Stock: 6,274 pcs
$ Price Range: $0.78

UC3845BNG Available from 3 distributors

✓ Authorised
✓ Non-Authorised
Distributor Stock Pricing MOQ PKG Lead Time Date Code On Order Quantity On Order Delivery
Xingangxin ✓
Non-Authorised Inventory information
3,314 pcs
On Request
3314 pcs On Request 1 On Request On Request On Request On Request On Request
Components Technology Group, Inc. ✓
Non-Authorised Inventory information
2,000 pcs
On Request
2000 pcs On Request 1 On Request On Request On Request On Request On Request
PROSOFT ELECTRONICS ✓
Non-Authorised Inventory information
960 pcs
On Request
960 pcs On Request 1 On Request On Request 24+ 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.

UC3845BNG 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
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UC3845BNG Description

Short technical summary and product information.

The UC3845BNG from ON Semiconductor is a versatile current mode controller suitable for off-line and DC-DC converter designs. It operates within a voltage range of 7.6V to 30V and supports both Boost and Flyback topologies, offering flexibility for various power supply configurations.

 

This controller features a maximum duty cycle of 48% and can operate at frequencies up to 500kHz. It includes essential control features such as frequency control and supports isolation-capable outputs. The device is housed in an 8-PDIP package and is designed for through-hole mounting.

 

Key specifications include a single output phase and a transistor driver output type. The operating temperature range is from 0°C to 70°C (TA). The UC3845BNG is designed to provide a cost-effective solution with minimal external components for power management applications.

UC3845BNG Quick Information

Product Type: DC DC Switching Controller
Canonical Name: UC3845BNG Current Mode Controller
Subcategory: DC DC Switching Controllers

UC3845BNG Compliance

RoHS Status: RoHS Compliant
Moisture Sensitivity Level (MSL): 1 Unlimited
REACH Status: REACH Unaffected
Lead Free: Pb-Free

UC3845BNG Estimated Pricing

Qty Low High
1+ $0.78 $0.78

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

UC3845BNG Features

  • High performance current mode controller.
  • Supports Boost and Flyback topologies.
  • Operates from 7.6V to 30V.
  • Frequency up to 500kHz.
  • Available in 8-PDIP package.

UC3845BNG Applications

  • Designed for off-line converters.
  • Suitable for DC-DC converter applications.
  • Cost-effective power solutions.
  • Minimal external component count.
  • Supports isolation-capable designs.

UC3845BNG FAQs

7 frequently asked questions generated from this part’s specifications.
What is the operating voltage range for the UC3845BNG?

The operating voltage range for the UC3845BNG is 7.6V to 30V.

What package type is the UC3845BNG available in?

The UC3845BNG is available in an 8-DIP (0.300", 7.62mm) package.

What is the operating temperature range for the UC3845BNG?

The operating temperature range for the UC3845BNG is 0°C to 70°C (TA).

What is the RoHS status of the UC3845BNG?

The UC3845BNG is RoHS3 Compliant.

What is the maximum duty cycle for the UC3845BNG?

The maximum duty cycle for the UC3845BNG is 48%.

What is the maximum operating frequency for the UC3845BNG?

The UC3845BNG can operate at frequencies up to 500kHz.

What are the UVLO thresholds for the UC3845B variant?

The UC3845B variant has UVLO thresholds of 8.5V (on) and 7.6V (off).

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