UC2844AN
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- Mfr.Part #
- UC2844AN
- Manufacturer
- STMicroelectronics
- Package / Case
- 8-DIP (0.300, 7.62mm)
- Datasheet
- Download
- Description
- IC REG CTRLR PWM CM 8DIP
- Stock
- 8,956
- In Stock ：
- 8,956
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- Manufacturer :
- STMicroelectronics
- Product Category :
- DC DC Switching Controllers
- Lead Free :
- Lead Free
- Output Current :
- 200mA
- Lifecycle Status :
- ACTIVE (Last Updated: 5 days ago)
- ECCN Code :
- EAR99
- Max Duty Cycle :
- 50 %
- Topology :
- Boost, Buck, Buck-Boost, Flyback, Forward
- JESD-609 Code :
- e4
- Synchronous Rectifier :
- No
- Input Current :
- 11mA
- Terminal Pitch :
- 2.54mm
- Moisture Sensitivity Level (MSL) :
- 1 (Unlimited)
- Output Type :
- Transistor Driver
- Voltage - Supply (Vcc/Vdd) :
- 10V~30V
- Terminal Position :
- Dual
- Weight :
- 528.605208mg
- Output Configuration :
- Positive
- Supply Voltage :
- 11V
- Fall Time (Typ) :
- 50 ns
- Package / Case :
- 8-DIP (0.300, 7.62mm)
- Width :
- 6.35mm
- Packaging :
- Tube
- Pbfree Code :
- yes
- Control Features :
- Frequency Control
- Output Voltage :
- 15V
- Frequency - Switching :
- Up to 500kHz
- Thickness :
- 3.9mm
- Surface Mount :
- No
- Input Voltage-Nom :
- 15V
- Length :
- 9.81mm
- Factory Lead Time :
- 6 Weeks
- Base Part Number :
- UC2844
- Nominal Input Voltage :
- 25V
- Operating Temperature :
- -40°C~85°C TA
- Supply Current-Max (Isup) :
- 25mA
- Duty Cycle (Max) :
- 48%
- Control Technique :
- PULSE WIDTH MODULATION
- Control Mode :
- CURRENT-MODE
- Height :
- 5.08mm
- Number of Outputs :
- 1
- REACH SVHC :
- No SVHC
- Analog IC - Other Type :
- SWITCHING CONTROLLER
- Number of Terminations :
- 8
- Terminal Finish :
- Nickel/Palladium/Gold (Ni/Pd/Au)
- Mounting Type :
- Through Hole
- RoHS Status :
- ROHS3 Compliant
- Frequency :
- 500kHz
- Rise Time :
- 50ns
- Number of Pins :
- 8
- Function :
- Step-Up, Step-Down, Step-Up/Step-Down
- Datasheets
- UC2844AN
DC DC Switching Controllers STMicroelectronics UC2844AN Overview
The UC2844AN, manufactured by STMicroelectronics, is a high-performance PWM (Pulse Width Modulation) controller specifically designed for DC to DC switching power supplies. This controller integrates all the necessary features to implement off-line or DC to DC fixed frequency current mode control schemes with a minimal number of external components. This product is particularly suitable for applications requiring efficient power management and reliability in a compact footprint. Utilizing the DC DC Switching Controllers STMicroelectronics UC2844AN ensures high efficiency and performance, making it an excellent choice for manufacturers looking to enhance their power supply solutions.
UC2844AN Features
The UC2844AN boasts a range of features that make it an ideal controller for power management solutions. Key features include a wide operating range of 8.4V to 36V, a 500 kHz capable oscillator with a precision 5% trimmed frequency, and a high-current totem pole output capable of driving a 1A MOSFET directly. Additionally, the device offers built-in features such as under-voltage lockout, leading-edge blanking on the current sense input, and automatic feed-forward compensation. These features contribute to enhanced system reliability and response under varying load and input conditions.
UC2844AN Applications
- Power Supplies for Telecommunications Equipment: The UC2844AN is utilized in telecom power systems to regulate and control power with precision, ensuring stable operation even under fluctuating load conditions.
- LED Drivers: Leveraging its efficient PWM control, the UC2844AN is used in LED driver circuits to provide constant current for high brightness and uniformity across display and lighting solutions.
- Battery Chargers: This controller is adapted for battery charging applications where accurate control of voltage and current is crucial for safety and efficiency in devices such as electric vehicles and consumer electronics.
- Solar Power Inverters: In solar applications, the UC2844AN helps manage and convert the DC output of solar panels to a usable AC form, optimizing the power conversion process for better solar energy utilization.
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