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UC2842DW

Part No UC2842DW
Manufacturer Texas Instruments
Catalog PMIC - AC DC Converters, Offline Switchers
Description Current Mode PWM Controller
Datasheet
Sample
Rohs State rohs
ECAD Module
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Categories Integrated Circuits (ICs)
Manufacturer Texas Instruments
Packaging Tube
Part Status Obsolete(EOL)
Output Isolation Isolated
Internal Switch(s) No
Topology Boost, Flyback, Forward
Voltage - Start Up 16V
Supply Voltage 10 V ~ 30 V
Duty Cycle 97%
Frequency - Switching Up to 500kHz
Fault Protection Current Limiting
Control Features Frequency Control
Operating Temperature Range -40°C ~ 85°C (TA)
Package 16-SOIC (0.295", 7.50mm Width)
Manufacturer Package 16-SOIC
Mounting SMD
Win Source Part Number 1275758-UC2842DW
Manufacturer Homepage www.ti.com
Popularity Medium
Supply and Demand Status Limited
Family Name UC2842
Introduction Date January 01, 2005
ECCN EAR99
Country of Origin Malaysia
Estimated EOL Date Obsolete
Ultra Librarian 3D Model Ultra Librarian UC2842DW CAD Model

Description

The UC2842DW from Texas Instruments is a high-performance current mode pulse-width modulation (PWM) controller that offers advanced features for power supply design. This integrated circuit is designed to facilitate the creation of low-cost, efficient, and compact power converters for a wide range of applications.

Key features of the UC2842DW include:

  • Adjustable Output: It provides an adjustable output range that can be tailored to specific needs, making it versatile for different power requirements.
  • High-Frequency Operation: With an operational frequency range up to 500kHz, the UC2842DW allows for smaller-sized power components, which can reduce the overall size and cost of the power supply design.
  • Current Mode Control: Current mode control provides inherent line feed-forward, cycle-by-cycle current limiting, and ease of loop compensation.
  • Low Startup and Operating Current: The device features a low startup current (typically 0.5mA) and a low operating current (typically 8.5mA), reducing power consumption and improving efficiency.
  • Trimmed Oscillator Discharge Current: This feature ensures precise duty cycle clamping, which is critical for reliable and consistent performance of the power supply.
  • Automatic Feed-Forward Compensation: This helps in maintaining stability over a wide range of input voltages and output powers.

The UC2842DW is housed in a 16-pin SOIC package, providing a compact footprint while allowing for adequate pin spacing for easy implementation in various designs. It is suitable for a variety of power applications, including switch-mode power supplies, DC-DC converters, and battery chargers.

With its robust design and comprehensive feature set, the UC2842DW from Texas Instruments is an excellent choice for designers seeking to create efficient and reliable power supply solutions. Its flexibility and high performance make it a go-to component for a wide range of industrial and consumer electronic products.

For detailed specifications and application guidance, designers are encouraged to consult the datasheet and supporting technical documentation available from Texas Instruments.

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