UC2844AQDR
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- Mfr.Part #
- UC2844AQDR
- Manufacturer
- Texas Instruments
- Package / Case
- 14-SOIC (0.154, 3.90mm Width)
- Datasheet
- Download
- Description
- IC CURR-MODE PWM CTLR 14-SOIC
- Stock
- 1
- In Stock ：
- 1
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- Manufacturer :
- Texas Instruments
- Product Category :
- DC DC Switching Controllers
- Terminal Finish :
- Nickel/Palladium/Gold (Ni/Pd/Au)
- Terminal Form :
- Gull wing
- Factory Lead Time :
- 6 Weeks
- Output Configuration :
- Positive
- Synchronous Rectifier :
- No
- Surface Mount :
- yes
- Number of Pins :
- 14
- Frequency - Switching :
- Up to 500kHz
- Supply Current-Max (Isup) :
- 25mA
- Mounting Type :
- Surface Mount
- Length :
- 8.65mm
- Output Current :
- 200mA
- Operating Temperature :
- -40°C~125°C TA
- Fall Time (Typ) :
- 50 ns
- Number of Terminations :
- 14
- ECCN Code :
- EAR99
- Weight :
- 145.603151mg
- Width :
- 3.91mm
- Quiescent Current :
- 11mA
- Function :
- Step-Up, Step-Down, Step-Up/Step-Down
- Moisture Sensitivity Level (MSL) :
- 1 (Unlimited)
- Number of Outputs :
- 1
- Package / Case :
- 14-SOIC (0.154, 3.90mm Width)
- Lifecycle Status :
- ACTIVE (Last Updated: 6 days ago)
- Input Voltage-Nom :
- 15V
- Control Mode :
- CURRENT-MODE
- Operating Supply Voltage :
- 30V
- Control Technique :
- PULSE WIDTH MODULATION
- Terminal Position :
- Dual
- Peak Reflow Temperature (Cel) :
- 260
- Supply Voltage :
- 11V
- Topology :
- Boost, Buck, Buck-Boost, Flyback, Forward
- Height :
- 1.75mm
- Thickness :
- 1.58mm
- Lead Free :
- Lead Free
- Max Duty Cycle :
- 50 %
- Duty Cycle (Max) :
- 48%
- Analog IC - Other Type :
- SWITCHING CONTROLLER
- Frequency :
- 450kHz
- Input Voltage (Max) :
- 25V
- Pbfree Code :
- yes
- Control Features :
- Frequency Control
- Packaging :
- Cut Tape (CT)
- Rise Time :
- 50ns
- Output Voltage :
- 15V
- Base Part Number :
- UC2844
- RoHS Status :
- ROHS3 Compliant
- JESD-609 Code :
- e4
- Voltage - Supply (Vcc/Vdd) :
- 10V~30V
- Output Type :
- Transistor Driver
- Datasheets
- UC2844AQDR
DC DC Switching Controllers Texas Instruments UC2844AQDR Overview
The DC DC Switching Controllers Texas Instruments UC2844AQDR is a current mode pulse width modulation (PWM) controller integrated circuit (IC) designed by Texas Instruments. Renowned for its efficiency and reliability, this controller IC stands as a premium choice for addressing sophisticated power management challenges. Optimized for DC to DC conversion, this component ensures stable performance with its built-in features including programmable frequency, precision reference voltage, and error amplification. With its robust design encapsulated in a 14-SOIC package, UC2844AQDR is suitable for a wide array of applications requiring stringent power supply regulation and provides the versatility demanded by today's advanced electronics systems.
UC2844AQDR Features
- Pulse-by-pulse current limiting for enhanced protection
- Programmable switching frequency up to 500kHz
- High-current totem-pole output for direct driving of the MOSFET
- Low startup and operating current maximizing efficiency
- Trimmed oscillator discharge current for precise duty cycle control
- Highly stable 5V reference voltage with a tolerance of ±1%
UC2844AQDR Applications
- Switch Mode Power Supplies (SMPS):
The IC's accurate duty cycle control makes it ideal for designing efficient and compact SMPS units used in industrial systems and consumer electronics.
- DC to DC Converters:
UC2844AQDR's high-frequency operation and current mode control facilitate miniaturized converter designs, commonly used in telecommunications and network equipment.
- Power Factor Correction (PFC):
With current mode control, the IC enhances power factor correction in high-performance power supply units, contributing to energy-saving initiatives.
- Battery Chargers:
The adjustable output and consistent control under varying load conditions render this IC suitable for precision battery charging applications.
- LED Drivers:
UC2844AQDR can regulate power efficiently for LED lighting solutions, ensuring long-term stability and brightness control.
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