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UC2844BN The STMicroelectronics UC2844BN is a high-performance current mode controller designed for DC-DC converter applications. It operates within a voltage range of 10V to 30V and supports frequencies up to 500kHz.
Mfr Part #:

UC2844BN

Available from 1 distributors
Mfr Name: STMicroelectronics
STMicroelectronics
The STMicroelectronics UC2844BN is a high-performance current mode controller designed for DC-DC converter applications. It operates within a voltage range of 10V to 30V and supports frequencies up to 500kHz.
✓ Total Stock: 8,300 pcs
$ Price Range: $0.78

UC2844BN Available from 1 distributor

✓ Authorised
✓ Non-Authorised
Distributor Stock Pricing MOQ PKG Lead Time Date Code On Order Quantity On Order Delivery
Fe Components ✓
Non-Authorised Inventory information
8,300 pcs
On Request
8300 pcs On Request 1 On Request On Request On Request On Request On Request
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UC2844BN Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
Manufacturer Name
Clock Sync
Conflict Minerals
Control Features
Duty Cycle (Max)
Frequency
Function
Mounting Type
Number of Outputs
Operating Temperature
Operating Voltage
Output Configuration
Output Phases
Output Type
SVHC Present
Supplier Device Package
Supplier Package
Synchronous Rectifier
Topology
Voltage
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UC2844BN Description

Short technical summary and product information.

The UC2844BN from STMicroelectronics is a fixed-frequency current mode controller designed for efficient Off-Line and DC-DC converter applications. It offers a cost-effective solution with minimal external components. This integrated circuit features 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 cycle-by-cycle current limiting, undervoltage lockout with hysteresis, and adjustable output deadtime from 50% to 70%. The device operates with a voltage range of 10V to 30V and supports switching frequencies up to 500kHz. The maximum duty cycle is rated at 48%.

 

This controller is available in an 8-pin Mini DIP package, suitable for through-hole mounting. It is designed for applications requiring precise frequency control and robust current limiting capabilities, making it a versatile choice for power supply designs.

UC2844BN Quick Information

Product Type: DC DC Switching Controller
Canonical Name: UC2844BN Current Mode Controller
Subcategory: DC DC Switching Controllers

UC2844BN Compliance

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

UC2844BN Estimated Pricing

Qty Low High
1+ $0.78 $0.78

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

UC2844BN Features

  • High performance current mode controller.
  • Operates from 10V to 30V supply.
  • Switching frequency up to 500kHz.
  • Adjustable output deadtime 50% to 70%.
  • Available in 8-Mini DIP package.

UC2844BN Applications

  • Designed for DC-DC converters.
  • Suitable for Off-Line applications.
  • Ideal for power supply designs.
  • Drives power MOSFETs efficiently.

UC2844BN FAQs

7 frequently asked questions generated from this part’s specifications.
What is the operating voltage range for the UC2844BN?

The operating voltage range is 10V to 30V.

What package type is the UC2844BN supplied in?

The UC2844BN is supplied in an 8-Mini DIP package.

What is the operating temperature range for the UC2844BN?

The operating temperature range is -25°C to 85°C.

What is the maximum duty cycle for the UC2844BN?

The maximum duty cycle is 48%.

What is the maximum switching frequency supported by the UC2844BN?

The UC2844BN supports switching frequencies up to 500kHz.

What are the UVLO thresholds for the UCX844B variant?

The UVLO thresholds for the UCX844B are 16 V (on) and 10 V (off).

What are the UVLO thresholds for the UCX845B variant?

The UVLO thresholds for the UCX845B are 8.5 V (on) and 7.6 V (off).

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