UC3843AD8G4
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- Mfr.Part #
- UC3843AD8G4
- Manufacturer
- Texas Instruments
- Package / Case
- 8-SOIC (0.154, 3.90mm Width)
- Datasheet
- Download
- Description
- IC REG CTRLR MULT TOPOLOGY 8SOIC
- Stock
- 51,901
- In Stock ：
- 51,901
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- Manufacturer :
- Texas Instruments
- Product Category :
- DC DC Switching Controllers
- ECCN Code :
- EAR99
- Operating Temperature :
- 0°C~70°C TA
- Base Part Number :
- UC3843
- Fall Time (Typ) :
- 50 ns
- Rise Time :
- 50ns
- Moisture Sensitivity Level (MSL) :
- 1 (Unlimited)
- Lifecycle Status :
- ACTIVE (Last Updated: 2 days ago)
- Length :
- 4.9mm
- JESD-609 Code :
- e4
- Control Features :
- Frequency Control
- Number of Pins :
- 8
- Terminal Form :
- Gull wing
- Terminal Position :
- Dual
- Output Voltage :
- 15V
- Number of Terminations :
- 8
- Package / Case :
- 8-SOIC (0.154, 3.90mm Width)
- Control Mode :
- CURRENT-MODE
- Weight :
- 72.603129mg
- Surface Mount :
- yes
- Output Current :
- 200mA
- Factory Lead Time :
- 6 Weeks
- Nominal Input Voltage :
- 25V
- Function :
- Step-Up, Step-Down, Step-Up/Step-Down
- Frequency :
- 450kHz
- Pbfree Code :
- yes
- Analog IC - Other Type :
- SWITCHING CONTROLLER
- Number of Outputs :
- 1
- Supply Voltage :
- 11V
- Width :
- 3.91mm
- Max Duty Cycle :
- 100 %
- Synchronous Rectifier :
- No
- Topology :
- Boost, Buck, Buck-Boost, Flyback, Forward
- Voltage - Supply (Vcc/Vdd) :
- 7.6V~30V
- Output Type :
- Transistor Driver
- Duty Cycle (Max) :
- 96%
- Control Technique :
- PULSE WIDTH MODULATION
- Supply Current-Max (Isup) :
- 25mA
- Frequency - Switching :
- Up to 500kHz
- Mounting Type :
- Surface Mount
- RoHS Status :
- ROHS3 Compliant
- Output Configuration :
- Positive
- Height :
- 1.75mm
- Thickness :
- 1.58mm
- Input Voltage-Nom :
- 15V
- Lead Free :
- Lead Free
- Packaging :
- Tube
- Terminal Finish :
- Nickel/Palladium/Gold (Ni/Pd/Au)
- Peak Reflow Temperature (Cel) :
- 260
- Datasheets
- UC3843AD8G4
DC DC Switching Controllers Texas Instruments UC3843AD8G4 Overview
The UC3843AD8G4 from Texas Instruments is a highly efficient DC DC Switching Controller designed to facilitate reliable voltage regulation and power conversion in a wide range of applications. This IC (Integrated Circuit) operates in multiple topologies, making it a versatile choice for designers focusing on enhancing the performance and durability of their power supply systems. Its compact 8SOIC form factor allows for integration in space-constrained environments, ensuring a seamless fit for both new designs and upgrades to existing systems. The UC3843AD8G4 is engineered to deliver precision control, enabling systems to achieve stable performance under varying load conditions, which is critical for high-dependability applications.
UC3843AD8G4 Features
The UC3843AD8G4 offers a range of features that make it a standout choice for power management solutions. Key features include its ability to operate at a switching frequency up to 500 kHz, which provides the flexibility to optimize inductor size and efficiency, while reducing overall component count. Additionally, it includes programmable soft start functionality, enhancing the management of inrush current upon system startup. The controller also supports a wide input voltage range, which is crucial for handling different levels of input supplies and reducing power waste. Enhanced safety features such as over-current protection and thermal shutdown are integral to prevent damage from abnormal operating conditions.
UC3843AD8G4 Applications
- Power Supplies: Utilized in switching power supplies to enhance efficiency and manage voltage variations, ensuring stable output for critical operations.
- LED Drivers: Can be employed in LED driver circuits to provide constant current control, which is essential for maintaining consistent brightness and extending LED life.
- Battery Chargers: Applied in battery charging systems to optimize charging cycles and improve safety through precise control of voltage and current.
- DC-DC Converters: Used in DC-DC conversion systems to efficiently step up or step down voltages while maintaining a compact system footprint.
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