UC3845BD
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- Mfr.Part #
- UC3845BD
- Manufacturer
- onsemi
- Package / Case
- 14-SOIC (0.154, 3.90mm Width)
- Datasheet
- Download
- Description
- IC REG CTRLR BOOST/FLYBK 14SOIC
- Stock
- 5,694
- In Stock ：
- 5,694
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- Manufacturer :
- onsemi
- Product Category :
- DC DC Switching Controllers
- Mounting Type :
- Surface Mount
- Switcher Configuration :
- Single
- Terminal Form :
- Gull wing
- Input Voltage (Max) :
- 25V
- Frequency - Switching :
- 500kHz
- Width :
- 4mm
- Function :
- Step-Up, Step-Up/Step-Down
- Number of Outputs :
- 1
- Height :
- 1.5mm
- Control Features :
- Frequency Control
- JESD-609 Code :
- e3
- Time@Peak Reflow Temperature-Max (s) :
- 40
- Number of Terminations :
- 14
- Lead Free :
- Lead Free
- Control Mode :
- CURRENT-MODE
- Pbfree Code :
- yes
- Input Voltage-Nom :
- 15V
- Lifecycle Status :
- ACTIVE (Last Updated: 4 days ago)
- Max Supply Current :
- 17mA
- Output Type :
- Transistor Driver
- Fall Time (Typ) :
- 50 ns
- Control Technique :
- PULSE WIDTH MODULATION
- Analog IC - Other Type :
- SWITCHING CONTROLLER
- Published :
- 2002
- Terminal Position :
- Dual
- Factory Lead Time :
- 2 Weeks
- Voltage - Supply (Vcc/Vdd) :
- 7.6V~30V
- ECCN Code :
- EAR99
- Mount :
- Surface Mount
- Package / Case :
- 14-SOIC (0.154, 3.90mm Width)
- Frequency :
- 52kHz
- Number of Pins :
- 14
- Operating Temperature :
- 0°C~70°C TA
- Rise Time :
- 50ns
- Output Configuration :
- Positive or Negative, Isolation Capable
- Peak Reflow Temperature (Cel) :
- 260
- Topology :
- Boost, Flyback
- Output Voltage :
- 13.4V
- Terminal Finish :
- Tin (Sn)
- Synchronous Rectifier :
- No
- REACH SVHC :
- No SVHC
- Packaging :
- Tube
- Length :
- 8.75mm
- Halogen Free :
- Halogen Free
- Max Duty Cycle :
- 48 %
- RoHS Status :
- ROHS3 Compliant
- Output Current :
- 200mA
- Moisture Sensitivity Level (MSL) :
- 1 (Unlimited)
- Base Part Number :
- UC384*B
- Datasheets
- UC3845BD
DC DC Switching Controllers onsemi UC3845BD Overview
The onsemi UC3845BD is a high-performance DC DC Switching Controller specifically designed to meet the demanding requirements of boost and flyback converters. This controller integrates a 500 kHz fixed-frequency internal oscillator that reduces external components while enabling precise control of power supply parameters. Its enhanced features, including programmable output, under-voltage lockout, and high current totem-pole output, make it exceptionally well-suited for managing complex power supply structures in various applications. The UC3845BD offers a reliable and efficient solution for advanced circuit designs, promoting energy efficiency and cost-effectiveness in bulk purchasing scenarios for business clients.
UC3845BD Features
- High-frequency operation up to 500 kHz
- Programmable output for tailored performance
- High current totem-pole output suitable for driving power MOSFETs
- Under-voltage lockout for system safety
- Low startup and operating current enhance energy efficiency
UC3845BD Applications
- Power Supplies for Servers
The UC3845BD can be used to design highly efficient, reliable power supplies for server applications, ensuring stable operation under variable load conditions.
- Telecommunications Equipment
In telecommunications equipment, this controller helps manage the power requirements necessary to maintain consistent, reliable communication functionalities.
- Battery Chargers
Utilizing the UC3845BD in battery chargers enables precise control over charging parameters, improving the lifespan and efficiency of high-capacity batteries.
- LED Lighting Systems
For LED lighting systems, the UC3845BD offers solutions for managing high input voltage and converting it efficiently to levels suitable for LEDs, ensuring energy-saving and longevity of the lighting elements.
- Consumer Electronics
This controller is ideal for consumer electronics, where it helps optimize the power usage and efficiency of devices such as laptops and televisions.
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