UC3844BN
- Mfr.Part #
- UC3844BN
- Manufacturer
- onsemi
- Package / Case
- 8-DIP (0.300, 7.62mm)
- Datasheet
- Download
- Description
- IC REG CTRLR PWM CM 8-DIP
- Stock
- 2,084
- In Stock :
- 2,084
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- Manufacturer :
- onsemi
- Product Category :
- DC DC Switching Controllers
- Output Configuration :
- Positive
- Control Technique :
- PULSE WIDTH MODULATION
- Analog IC - Other Type :
- SWITCHING CONTROLLER
- Published :
- 2002
- Packaging :
- Tube
- Number of Outputs :
- 1
- Operating Temperature :
- 0°C~70°C TA
- Frequency - Switching :
- Up to 500kHz
- Output Voltage :
- 13.4V
- Input Bias Current :
- -2μA
- Terminal Finish :
- Tin (Sn)
- Terminal Pitch :
- 2.54mm
- Peak Reflow Temperature (Cel) :
- 260
- Input Voltage (Max) :
- 25V
- Power Dissipation :
- 1.25W
- Synchronous Rectifier :
- No
- Control Mode :
- CURRENT-MODE
- Mounting Type :
- Through Hole
- REACH SVHC :
- No SVHC
- Mount :
- Through Hole
- Terminal Position :
- Dual
- Time@Peak Reflow Temperature-Max (s) :
- 40
- Frequency :
- 250kHz
- JESD-609 Code :
- e3
- Pbfree Code :
- yes
- ECCN Code :
- EAR99
- Max Supply Current :
- 17mA
- Base Part Number :
- UC384*B
- Package / Case :
- 8-DIP (0.300, 7.62mm)
- Number of Pins :
- 8
- Threshold Voltage :
- 17.5V
- Output Type :
- Transistor Driver
- Input Voltage-Nom :
- 15V
- Factory Lead Time :
- 8 Weeks
- Voltage - Supply (Vcc/Vdd) :
- 10V~36V
- Number of Terminations :
- 8
- Output Current :
- 200mA
- Lifecycle Status :
- ACTIVE (Last Updated: 3 days ago)
- RoHS Status :
- ROHS3 Compliant
- Max Duty Cycle :
- 48 %
- Function :
- Step-Up, Step-Up/Step-Down
- Rise Time :
- 50ns
- Topology :
- Boost, Flyback
- Height :
- 3.44mm
- Control Features :
- Frequency Control
- Width :
- 6.6mm
- Switcher Configuration :
- Single
- Length :
- 10.16mm
- Halogen Free :
- Halogen Free
- Lead Free :
- Lead Free
- Moisture Sensitivity Level (MSL) :
- 1 (Unlimited)
- Fall Time (Typ) :
- 50 ns
- Datasheets
- UC3844BN

DC DC Switching Controllers onsemi UC3844BN Overview
The UC3844BN by onsemi stands out in the market of DC DC Switching Controllers, offering advanced technology in a compact form factor. This Pulse Width Modulation (PWM) controller is designed for high performance and reliability in switching power supplies. Featuring an optimized design for minimal external components, it ensures cost-effectiveness while enhancing system efficiency and robustness. The UC3844BN facilitates precise power delivery and improved energy management, making it an ideal choice for developers looking to balance performance with power conservation.
UC3844BN Features
- High-performance PWM control
- Low startup current: <1mA
- Automatic feed-forward compensation
- Pulse-by-pulse current limiting
- Enhanced line regulation
- Up to 500 kHz operation frequency
UC3844BN Applications
- Power Supplies: Utilizes its PWM capabilities to provide stable and efficient power conversion in AC to DC and DC to DC applications.
- LED Drivers: Employs current limiting and PWM dimming features for precise control over LED lighting systems.
- Battery Chargers: Optimizes charging processes through accurate control of power input, enhancing battery life and safety.
- Telecom Equipment: Ensures reliable power management in telecom infrastructures, critical for continuous operation.
- Consumer Electronics: Integral in designing energy-efficient and compact power solutions for household electronics.
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