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UC2845P

Part No UC2845P
Manufacturer Texas Instruments
Catalog PMIC - Voltage Regulators - DC DC Switching Controllers
Description SWITCHING CONTROLLER
Sample
Rohs State Need to verify
ECAD Module
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Category Integrated Circuits (ICs) - Power Management (PMIC) - DC DC Switching Controllers
Mfr Texas Instruments
Package Bulk
Product Status Active
Output Type Transistor Driver
Function Step-Up, Step-Down, Step-Up/Step-Down
Output Configuration Positive, Isolation Capable
Topology Boost, Buck, Flyback, Forward
Number of Outputs 1
Output Phases 1
Voltage - Supply (Vcc/Vdd) 12V ~ 28V
Frequency - Switching Up to 500kHz
Duty Cycle (Max) 48%
Synchronous Rectifier No
Clock Sync No
Control Features Frequency Control
Temperature Range - Operating -40°C ~ 85°C (TA)
Mounting Type Through Hole
Package / Case 8-DIP (0.300", 7.62mm)
Supplier Device Package 8-PDIP
Base Product Number UC2845
Standard Package 1 pcs
MSL Level 3 (168 Hours)
REACH Status REACH Affected
ECCN EAR99
HTSUS 8542.39.0001
Win Source Part Number 693114-UC2845P
Ultra Librarian 3D Model Ultra Librarian UC2845P CAD Model

Description

The Texas Instruments UC2845P is a high-performance current mode pulse width modulation (PWM) controller that offers exceptional features and robustness for power supply designs. This integrated circuit is designed to facilitate the development of a wide range of power applications, including off-line and DC-to-DC converter configurations.

Key Features:

  • High-Frequency Operation: With a capability of operating at frequencies up to 500kHz, the UC2845P allows for smaller-sized components, leading to more compact and efficient power supply designs.
  • Current Mode Control: This control method provides superior bandwidth and response to load transients, and simplifies the loop compensation over the voltage mode control.
  • Automatic Feed Forward Compensation: Enhances performance by compensating for varying input voltages without the need for additional components or complex designs.
  • Pulse-by-Pulse Current Limiting: Ensures robust protection for the power supply components by limiting the current in each cycle, preventing overcurrent conditions.
  • Under-Voltage Lockout (UVLO): Both start-up and operational UVLO thresholds are included, preventing the circuit from operating at insufficient voltages, which could lead to inefficient or unstable performance.
  • Trimmed Oscillator Discharge Current: This feature provides a tight frequency control that contributes to the consistency and predictability of the power supply performance.

Applications:

  • AC/DC Converters for consumer electronics
  • DC/DC Converters for distributed power systems
  • Power supplies for industrial and telecommunications equipment
  • LED Drivers and battery chargers

The UC2845P comes in an 8-pin plastic dip package, making it suitable for through-hole mounting, which is beneficial for prototyping and manufacturing processes that require manual assembly or repair. Its robust design ensures reliable operation even in the harshest conditions, making it an ideal choice for power electronic engineers looking for a high-quality, versatile PWM controller.

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Pricing & Ordering

Quantity Unit Price Ext. Price
21+ $2.4143 $50.7003
51+ $1.9810 $101.0310
79+ $1.9191 $151.6089
108+ $1.8572 $200.5776
140+ $1.7953 $251.3420
187+ $1.6096 $300.9952
* Prices exclude shipping and taxes. Shipping costs are calculated at checkout.
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Availability: 11,300 pieces
MOQ: 21 pcs
Order Increment : 1 pcs
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