UC3844BVD
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- Mfr.Part #
- UC3844BVD
- Manufacturer
- onsemi
- Package / Case
- 14-SOIC (0.154, 3.90mm Width)
- Datasheet
- Download
- Description
- IC REG CTRLR PWM CM 14-SOIC
- Stock
- 5,951
- In Stock ：
- 5,951
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- Manufacturer :
- onsemi
- Product Category :
- DC DC Switching Controllers
- Control Technique :
- PULSE WIDTH MODULATION
- Length :
- 8.65mm
- Switcher Configuration :
- Single
- JESD-609 Code :
- e0
- Control Mode :
- CURRENT-MODE
- Frequency :
- 275kHz
- Output Type :
- Transistor Driver
- Base Part Number :
- UC384*B
- Operating Temperature :
- -40°C~105°C TA
- Terminal Form :
- Gull wing
- Terminal Finish :
- Tin/Lead (Sn/Pb)
- Duty Cycle (Max) :
- 48%
- Published :
- 2007
- Analog IC - Other Type :
- SWITCHING CONTROLLER
- Terminal Position :
- Dual
- Quiescent Current :
- 12mA
- Packaging :
- Tube
- Frequency - Switching :
- Up to 500kHz
- Number of Terminations :
- 14
- Moisture Sensitivity Level (MSL) :
- 1 (Unlimited)
- Output Configuration :
- Positive
- Function :
- Step-Up, Step-Up/Step-Down
- Input Voltage-Nom :
- 15V
- Package / Case :
- 14-SOIC (0.154, 3.90mm Width)
- Synchronous Rectifier :
- No
- Input Voltage (Max) :
- 25V
- Control Features :
- Frequency Control
- Mount :
- Surface Mount
- RoHS Status :
- Non-RoHS Compliant
- Width :
- 3.9mm
- Number of Outputs :
- 1
- Lead Free :
- Contains Lead
- Voltage - Supply (Vcc/Vdd) :
- 10V~36V
- Peak Reflow Temperature (Cel) :
- 235
- ECCN Code :
- EAR99
- Mounting Type :
- Surface Mount
- Number of Pins :
- 14
- Output Current-Max :
- 1A
- Topology :
- Boost, Flyback
- Datasheets
- UC3844BVD
DC DC Switching Controllers onsemi UC3844BVD Overview
The onsemi UC3844BVD is a high-performance PWM controller designed specifically for DC-DC switching power supplies. This device integrates innovative features that enhance system reliability and efficiency, making it ideal for a broad range of power conversion applications. It is constructed to offer precise control over power supply operations, ensuring stable output and optimized performance. The UC3844BVD, part of onsemi's robust portfolio of power management solutions, stands out for its adaptability to challenging conditions and its capacity to drive efficient management of power requirements in complex circuits.
UC3844BVD Features
The UC3844BVD PWM controller includes several key features that contribute to its superior performance:
- Enhanced performance with up to 500 kHz operation frequency, allowing for smaller size of external components.
- Low startup current of 0.5 mA max and operating current of 8.5 mA, improving overall energy efficiency.
- Current mode operation provides improved transient response and simplified loop compensation.
- Under-voltage lockout with hysteresis for stable operation under varying voltage conditions.
- Output drive capability suitable for a range of MOSFETs and power transistors, enhancing design flexibility.
UC3844BVD Applications
- Switch Mode Power Supplies (SMPS): Utilizes its PWM capabilities to provide stable and efficient power conversion, critical for powering complex electronics.
- DC-DC Converters: Helps in stepping up or stepping down DC voltages efficiently, suitable for various electronic devices requiring different voltage levels.
- Battery Chargers: Optimizes charging protocols to enhance battery performance and longevity, crucial for mobile and portable devices.
- Power LED Drivers: Drives LEDs with precise current control, ensuring consistent brightness and color quality.
- Telecommunications Equipment: Manages power supply in telecom infrastructure, ensuring reliability and performance in communication networks.
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