UC3842AD
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- Mfr.Part #
- UC3842AD
- Manufacturer
- Texas Instruments
- Package / Case
- 8-SOIC (0.154, 3.90mm Width)
- Datasheet
- Download
- Description
- IC REG CTRLR PWM CM 14SOIC
- Stock
- 7,525
- In Stock ：
- 7,525
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- Manufacturer :
- Texas Instruments
- Product Category :
- DC DC Switching Controllers
- Frequency - Switching :
- Up to 500kHz
- Max Duty Cycle :
- 100 %
- Lead Free :
- Lead Free
- Duty Cycle (Max) :
- 96%
- Supply Current-Max (Isup) :
- 25mA
- Analog IC - Other Type :
- SWITCHING CONTROLLER
- Height :
- 1.75mm
- REACH SVHC :
- No SVHC
- Termination :
- SMD/SMT
- Pbfree Code :
- yes
- Width :
- 3.91mm
- ECCN Code :
- EAR99
- Control Technique :
- PULSE WIDTH MODULATION
- Packaging :
- Tube
- Terminal Form :
- Gull wing
- Number of Pins :
- 8
- Output Voltage :
- 5V
- Operating Temperature :
- 0°C~70°C TA
- Weight :
- 72.603129mg
- Synchronous Rectifier :
- No
- JESD-609 Code :
- e4
- Power Dissipation :
- 1W
- Max Input Voltage :
- 25V
- Factory Lead Time :
- 6 Weeks
- RoHS Status :
- ROHS3 Compliant
- Peak Reflow Temperature (Cel) :
- 260
- Number of Outputs :
- 1
- Rise Time :
- 50ns
- Control Features :
- Frequency Control
- Control Mode :
- CURRENT-MODE
- Output Configuration :
- Positive
- Base Part Number :
- UC3842
- Mounting Type :
- Surface Mount
- Surface Mount :
- yes
- Lifecycle Status :
- ACTIVE (Last Updated: 6 days ago)
- Output Current :
- 1A
- Fall Time (Typ) :
- 50 ns
- Number of Terminations :
- 8
- Terminal Position :
- Dual
- Frequency :
- 450kHz
- Topology :
- Boost, Buck, Buck-Boost, Flyback, Forward
- Voltage - Supply (Vcc/Vdd) :
- 10V~30V
- Package / Case :
- 8-SOIC (0.154, 3.90mm Width)
- Input Voltage-Nom :
- 15V
- Input Current :
- 11mA
- Nominal Input Voltage :
- 15V
- Thickness :
- 1.58mm
- Output Type :
- Transistor Driver
- Moisture Sensitivity Level (MSL) :
- 1 (Unlimited)
- Max Output Current :
- 1A
- Function :
- Step-Up, Step-Down, Step-Up/Step-Down
- Max Power Dissipation :
- 1W
- Terminal Finish :
- Nickel/Palladium/Gold (Ni/Pd/Au)
- Supply Voltage :
- 11V
- Length :
- 4.9mm
- Datasheets
- UC3842AD
DC DC Switching Controllers Texas Instruments UC3842AD Overview
The UC3842AD from Texas Instruments is a high-performance PWM (Pulse Width Modulation) controller IC specifically designed for DC to DC switching power supplies. This 14SOIC package device is engineered to facilitate efficient power conversion and management, making it an ideal choice for sophisticated electronic applications requiring stable and reliable power supply solutions. The Texas Instruments UC3842AD enhances system reliability and simplifies the design process, offering a robust feature set that accommodates a wide range of power systems. With its precision voltage reference and an oscillator that is adjustable over a wide frequency range, this controller is perfectly suited to meet the diverse needs of modern electronic environments.
UC3842AD Features
The UC3842AD boasts an array of features designed to enhance its efficiency and flexibility. Key features include programmable output control, under-voltage lockout with hysteresis, optimized dead-time for improved efficiency, and a minimal number of external components required for operation. Its high-current totem pole output is capable of driving a power MOSFET or IGBT directly, which simplifies the design and integration process in power supply applications. Additionally, its built-in error amplifier contributes to enhanced performance by facilitating tight voltage regulation and feedback control.
UC3842AD Applications
- Power Supplies: Used in server power supplies to ensure efficient power conversion and reliable operation. The UC3842AD regulates voltage and provides PWM control, which helps maintain stability and efficiency in power supply units.
- LED Drivers: Applicable in driving LEDs for lighting applications where constant current is required. The device's PWM capability allows for precise brightness control and improved energy efficiency.
- Telecommunications Equipment: Vital in telecom power systems to manage power distribution and ensure uninterrupted service. The UC3842AD's robust control features help in maintaining optimal performance even under varying load conditions.
- Battery Chargers: Utilized in charging circuits for battery management systems to ensure the safe and efficient charging of batteries. Its accurate control helps in extending battery life and enhancing safety.
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