UC3843ADM
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- Mfr.Part #
- UC3843ADM
- Manufacturer
- Microsemi
- Package / Case
- 8-SOIC (0.154, 3.90mm Width)
- Datasheet
- Download
- Description
- IC REG CTRLR BUCK/BOOST 8SOIC
- Stock
- 9,604
- In Stock ：
- 9,604
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- Manufacturer :
- Microsemi
- Product Category :
- DC DC Switching Controllers
- Package / Case :
- 8-SOIC (0.154, 3.90mm Width)
- Output Voltage :
- 5V
- Mounting Type :
- Surface Mount
- Moisture Sensitivity Level (MSL) :
- 1 (Unlimited)
- Operating Supply Current :
- 11mA
- JESD-609 Code :
- e3
- Published :
- 1997
- Packaging :
- Tube
- Control Features :
- Frequency Control
- Number of Terminations :
- 8
- Number of Outputs :
- 1
- Terminal Form :
- Gull wing
- Topology :
- Boost, Buck, Flyback, Forward
- Isolation :
- Isolated
- Frequency :
- 500kHz
- Function :
- Step-Up, Step-Down, Step-Up/Step-Down
- Terminal Finish :
- Matte Tin (Sn)
- Threshold Voltage :
- 17.5V
- Weight :
- 540.001716mg
- Number of Pins :
- 8
- Control Technique :
- PULSE WIDTH MODULATION
- Input Voltage-Nom :
- 15V
- Pbfree Code :
- yes
- Base Part Number :
- UC*84
- RoHS Status :
- RoHS Compliant
- Output Type :
- Transistor Driver
- Control Mode :
- CURRENT-MODE
- Max Supply Current :
- 17mA
- Duty Cycle (Max) :
- 96%
- Synchronous Rectifier :
- No
- Output Power :
- 25W
- Rise Time :
- 50ns
- Operating Temperature :
- 0°C~70°C TA
- ECCN Code :
- EAR99
- Max Duty Cycle :
- 100 %
- Frequency - Switching :
- Up to 500kHz
- Switcher Configuration :
- Single
- Peak Reflow Temperature (Cel) :
- 260
- Terminal Position :
- Dual
- Time@Peak Reflow Temperature-Max (s) :
- 40
- Voltage - Supply (Vcc/Vdd) :
- 7.6V~30V
- Output Current :
- 1A
- Quiescent Current :
- 11mA
- Operating Supply Voltage :
- 30V
- Analog IC - Other Type :
- SWITCHING CONTROLLER
- Mount :
- Surface Mount
- Lead Free :
- Lead Free
- Output Configuration :
- Positive
- Datasheets
- UC3843ADM
DC DC Switching Controllers Microsemi UC3843ADM Overview
The UC3843ADM from Microsemi is a robust DC DC Switching Controller designed for managing power supplies in demanding environments. Its primary role is to regulate the power conversion process, ensuring high efficiency and reliability in a variety of applications. This model, encapsulated in an 8SOIC package, facilitates compact design and offers enhanced thermal performance. The UC3843ADM stands out for its ability to drive a power MOSFET while operating at a switching frequency that can be externally set, providing flexibility and customization for specific application needs. The use of this DC DC Switching Controllers Microsemi UC3843ADM ensures optimized power management with minimal loss, making it an indispensable component for high-performance electronics.
UC3843ADM Features
The UC3843ADM is equipped with a range of features that enhance its functionality and reliability in circuit designs. Key features include a programmable switching frequency up to 500 kHz, a high current totem-pole output capable of driving a power MOSFET, and an internal trim oscillator for precise frequency control. Additionally, its low startup current (0.5 mA typical) and automatic feed-forward compensation help in reducing system power consumption and improving response time.
UC3843ADM Applications
- Power Supplies: The UC3843ADM is used in both isolated and non-isolated buck, boost, and flyback power supplies, efficiently managing power delivery and conversion.
- Solar Inverters: In solar power applications, this controller helps in converting DC input from solar panels into a usable AC output, optimizing the energy conversion process for better efficiency and performance.
- Battery Chargers: Its precision in control makes the UC3843ADM ideal for battery management systems where it regulates the charging process, ensuring the longevity and safety of battery packs.
- LED Lighting: This controller is also widely utilized in LED lighting systems, driving the LEDs with stable current, thus maximizing lifespan and maintaining consistent brightness.
- Telecommunication Equipment: For telecom power systems, the UC3843ADM provides reliable and efficient switching control, crucial for maintaining system operation under varying load conditions.
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