UC3845ANG4
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- Mfr.Part #
- UC3845ANG4
- Manufacturer
- Unitrode
- Package / Case
- 8-DIP (0.300, 7.62mm)
- Datasheet
- Download
- Description
- UC3845A CURRENT MODE PWM CONTROL
- Stock
- 24,467
- In Stock ：
- 24,467
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- Manufacturer :
- Unitrode
- Product Category :
- DC DC Switching Controllers
- Base Part Number :
- UC3845
- Lifecycle Status :
- ACTIVE (Last Updated: 4 days ago)
- Max Duty Cycle :
- 50 %
- Rise Time :
- 50ns
- Function :
- Step-Up, Step-Down, Step-Up/Step-Down
- Frequency :
- 450kHz
- JESD-609 Code :
- e4
- Control Mode :
- CURRENT-MODE
- Terminal Position :
- Dual
- Terminal Finish :
- Nickel/Palladium/Gold (Ni/Pd/Au)
- Supply Current-Max (Isup) :
- 25mA
- Topology :
- Buck, Boost, Flyback, Forward Converter
- Output Current :
- 200mA
- Control Technique :
- PULSE WIDTH MODULATION
- Pbfree Code :
- yes
- Nominal Input Voltage :
- 25V
- Control Features :
- Frequency Control
- Mounting Type :
- Through Hole
- Factory Lead Time :
- 6 Weeks
- Output Voltage :
- 15V
- Switcher Configuration :
- Buck-Boost
- Number of Terminations :
- 8
- Weight :
- 528.605208mg
- Operating Temperature :
- 0°C~70°C TA
- Thickness :
- 3.9mm
- Moisture Sensitivity Level (MSL) :
- 1 (Unlimited)
- Package / Case :
- 8-DIP (0.300, 7.62mm)
- Packaging :
- Tube
- Analog IC - Other Type :
- SWITCHING CONTROLLER
- Synchronous Rectifier :
- No
- Input Voltage-Nom :
- 15V
- Supply Voltage :
- 11V
- Frequency - Switching :
- 500kHz
- Duty Cycle (Max) :
- 48%
- Number of Pins :
- 8
- Voltage - Supply (Vcc/Vdd) :
- 7.6V~30V
- Number of Outputs :
- 1
- Height :
- 5.08mm
- ECCN Code :
- EAR99
- RoHS Status :
- ROHS3 Compliant
- Output Type :
- Transistor Driver
- Surface Mount :
- No
- Terminal Pitch :
- 2.54mm
- Lead Free :
- Lead Free
- Width :
- 6.35mm
- Length :
- 9.81mm
- Output Configuration :
- Positive, Isolation Capable
- Fall Time (Typ) :
- 50 ns
- Datasheets
- UC3845ANG4
DC DC Switching Controllers Unitrode UC3845ANG4 Overview
The UC3845ANG4 by Unitrode represents a sophisticated solution in the realm of DC DC Switching Controllers. This component is engineered to facilitate efficient and reliable current mode PWM control, which is crucial for managing power supplies in a variety of demanding applications. The UC3845ANG4 is designed to enhance system performance while ensuring stability and precision in power conversion processes. Its robust design and advanced technology make it an ideal choice for developers looking to optimize their power management systems. The DC DC Switching Controllers Unitrode UC3845ANG4 integrates seamlessly into existing circuits, offering a versatile and powerful solution that enhances both functionality and efficiency.
UC3845ANG4 Features
The UC3845ANG4 boasts numerous features that make it a standout option for power management applications. Key features include an extended duty cycle for greater flexibility in power conversion, enhanced frequency stability under various conditions, and a programmable maximum duty cycle. Additionally, this model offers under-voltage lockout with hysteresis, low startup and operating current, and automatic feed-forward compensation. These features collectively contribute to a high-performance profile that ensures reliable and efficient operation.
UC3845ANG4 Applications
- Power Supply Units: The UC3845ANG4 is used in the design of both isolated and non-isolated power supplies, ensuring stable and controlled output under variable load conditions.
- DC-DC Converters: This controller is pivotal in developing efficient converters for stepping down or stepping up voltage levels, crucial for battery-powered devices and renewable energy applications.
- LED Drivers: It facilitates the design of drivers that require accurate PWM control to maintain consistent brightness and improve the efficiency of LED lighting systems.
- Telecommunications Equipment: The UC3845ANG4 is utilized in telecom power systems where reliable and efficient power conversion is necessary for uninterrupted service and operation.
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