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
- Operating Supply Voltage :
- 30V
- Output Type :
- Transistor Driver
- JESD-609 Code :
- e3
- Moisture Sensitivity Level (MSL) :
- 1 (Unlimited)
- Weight :
- 540.001716mg
- Base Part Number :
- UC*84
- Output Power :
- 25W
- Topology :
- Boost, Buck, Flyback, Forward
- Time@Peak Reflow Temperature-Max (s) :
- 40
- Packaging :
- Tube
- Control Mode :
- CURRENT-MODE
- Analog IC - Other Type :
- SWITCHING CONTROLLER
- Voltage - Supply (Vcc/Vdd) :
- 7.6V~30V
- Input Voltage-Nom :
- 15V
- Peak Reflow Temperature (Cel) :
- 260
- Threshold Voltage :
- 17.5V
- Published :
- 1997
- Terminal Finish :
- Matte Tin (Sn)
- Frequency - Switching :
- Up to 500kHz
- Max Duty Cycle :
- 100 %
- Number of Pins :
- 8
- Quiescent Current :
- 11mA
- RoHS Status :
- RoHS Compliant
- Rise Time :
- 50ns
- Terminal Position :
- Dual
- Mount :
- Surface Mount
- Synchronous Rectifier :
- No
- Operating Supply Current :
- 11mA
- Isolation :
- Isolated
- Frequency :
- 500kHz
- Number of Terminations :
- 8
- Max Supply Current :
- 17mA
- Terminal Form :
- Gull wing
- Number of Outputs :
- 1
- Mounting Type :
- Surface Mount
- Output Current :
- 1A
- Lead Free :
- Lead Free
- ECCN Code :
- EAR99
- Duty Cycle (Max) :
- 96%
- Package / Case :
- 8-SOIC (0.154, 3.90mm Width)
- Operating Temperature :
- 0°C~70°C TA
- Output Configuration :
- Positive
- Control Technique :
- PULSE WIDTH MODULATION
- Output Voltage :
- 5V
- Function :
- Step-Up, Step-Down, Step-Up/Step-Down
- Pbfree Code :
- yes
- Control Features :
- Frequency Control
- Switcher Configuration :
- Single
- 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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