UC3843BDG
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- Mfr.Part #
- UC3843BDG
- Manufacturer
- onsemi
- Package / Case
- 14-SOIC (0.154, 3.90mm Width)
- Datasheet
- Download
- Description
- IC REG CTRLR FLYBACK 14SOIC
- Stock
- 545
- In Stock ：
- 545
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- Manufacturer :
- onsemi
- Product Category :
- DC DC Switching Controllers
- Package / Case :
- 14-SOIC (0.154, 3.90mm Width)
- Factory Lead Time :
- 2 Weeks
- Height :
- 1.5mm
- Terminal Finish :
- Tin (Sn)
- Voltage - Supply (Vcc/Vdd) :
- 7.6V~30V
- Number of Terminations :
- 14
- Packaging :
- Tube
- Mounting Type :
- Surface Mount
- Terminal Position :
- Dual
- Fall Time (Typ) :
- 50 ns
- Frequency - Switching :
- Up to 500kHz
- Published :
- 2002
- Time@Peak Reflow Temperature-Max (s) :
- 40
- Control Features :
- Frequency Control
- Pbfree Code :
- yes
- Moisture Sensitivity Level (MSL) :
- 1 (Unlimited)
- Max Duty Cycle :
- 96 %
- Peak Reflow Temperature (Cel) :
- 260
- Frequency :
- 250kHz
- Synchronous Rectifier :
- No
- Output Configuration :
- Positive
- Output Voltage :
- 13.4V
- Lifecycle Status :
- ACTIVE (Last Updated: 2 days ago)
- Function :
- Step-Up, Step-Up/Step-Down
- Topology :
- Boost, Flyback
- Lead Free :
- Lead Free
- Operating Temperature :
- 0°C~70°C TA
- REACH SVHC :
- No SVHC
- Input Voltage (Max) :
- 25V
- Terminal Form :
- Gull wing
- Analog IC - Other Type :
- SWITCHING CONTROLLER
- Number of Outputs :
- 1
- Halogen Free :
- Halogen Free
- Length :
- 8.75mm
- JESD-609 Code :
- e3
- Control Technique :
- PULSE WIDTH MODULATION
- RoHS Status :
- ROHS3 Compliant
- Rise Time :
- 50ns
- Mount :
- Surface Mount
- Width :
- 4mm
- Number of Pins :
- 14
- Output Type :
- Transistor Driver
- Input Voltage-Nom :
- 15V
- Control Mode :
- CURRENT-MODE
- Switcher Configuration :
- Single
- ECCN Code :
- EAR99
- Output Current :
- 200mA
- Base Part Number :
- UC384*B
- Datasheets
- UC3843BDG
DC DC Switching Controllers onsemi UC3843BDG Overview
The UC3843BDG by onsemi is a high-performance IC specifically designed for controlling DC DC switching power supplies. This controller integrates a 500 kHz fixed-frequency current-mode PWM control circuit, making it an ideal choice for developing compact, efficient, and reliable power supplies. Its ability to operate over a wide voltage range and incorporate various protection features, such as under-voltage lockout and current limiting, enhances system reliability. The DC DC Switching Controllers onsemi UC3843BDG is perfect for designers looking to implement advanced power solutions in energy-sensitive applications.
UC3843BDG Features
- High-performance PWM controller
- Operating frequency up to 500 kHz
- Low startup current (<1.0 mA)
- High current totem pole output
- Automatic feed forward compensation
- Pulse-by-pulse current limiting
- Under-voltage lockout with hysteresis
- Double pulse suppression
UC3843BDG Applications
- Power supplies for consumer electronics: Utilizes PWM for efficient power conversion in devices like TVs and game consoles.
- DC-DC converters: Integral in stepping down or stepping up voltages in various electronic applications, enhancing overall efficiency and stability.
- Battery chargers: Controls the power management required for charging batteries in devices such as smartphones and laptops.
- LED drivers: Regulates and supplies consistent current for LED lighting systems, ensuring optimal performance and longevity.
- Telecommunication equipment: Provides reliable power control in telecommunication infrastructures, crucial for uninterrupted service.
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