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UC2842BDR2G
Product Overview
- Category: Integrated Circuit
- Use: Switching Regulator Controller
- Characteristics: High Performance, Low Start-Up Current, Wide Supply Voltage Range
- Package: SOIC-14
- Essence: Efficient Power Management
- Packaging/Quantity: Tape & Reel, 2500 units per reel
Specifications
- Input Voltage: 7V to 35V
- Output Voltage: Up to 30V
- Operating Temperature: -40°C to 85°C
- Frequency Range: 50kHz to 1MHz
- Output Current: 1A
Detailed Pin Configuration
- COMP: Compensation pin for error amplifier
- RT/CT: Timing resistor and capacitor connection
- UVLO: Under-voltage lockout
- OUTPUT: Output of the error amplifier
- GND: Ground
- FB: Feedback input
- Ipk Sense: Peak current sense input
- Vcc: Supply voltage input
- CS: Current sense input
- RT/CT: Timing resistor and capacitor connection
- SYNC: Synchronization input
- SD: Shutdown input
- Vref: Reference voltage output
- Driver Out: Gate driver output
Functional Features
- High Efficiency: Enables energy-efficient power conversion
- Low Start-Up Current: Allows for easy start-up in various applications
- Wide Supply Voltage Range: Accommodates diverse power supply configurations
Advantages and Disadvantages
Advantages
- High performance in power management
- Versatile application in various power supply designs
- Compact package size for space-constrained applications
Disadvantages
- Limited output current compared to some competing models
- Sensitive to external noise in certain operating conditions
Working Principles
The UC2842BDR2G is a switching regulator controller that operates by modulating the duty cycle of a power switch to regulate the output voltage. It utilizes a voltage mode control loop to maintain stable output voltage under varying load conditions.
Detailed Application Field Plans
The UC2842BDR2G is widely used in: - DC-DC converters - LED drivers - Battery chargers - Uninterruptible power supplies (UPS) - Industrial power systems
Detailed and Complete Alternative Models
- UC3842BDR2G: Higher output current capability
- LM5117: Wide input voltage range with integrated MOSFET
- LT1370: High efficiency synchronous step-down switching regulator
In conclusion, the UC2842BDR2G is a versatile and efficient switching regulator controller suitable for a wide range of power management applications.
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Énumérez 10 questions et réponses courantes liées à l'application de UC2842BDR2G dans les solutions techniques
What is the UC2842BDR2G?
- The UC2842BDR2G is a high-performance current mode PWM controller designed for applications such as DC-DC converters and LED drivers.
What is the input voltage range of UC2842BDR2G?
- The input voltage range of UC2842BDR2G is typically 7V to 30V.
What is the maximum duty cycle of UC2842BDR2G?
- The maximum duty cycle of UC2842BDR2G is around 50%.
What are the typical applications of UC2842BDR2G?
- Typical applications include off-line and DC-DC converters, LED drivers, and power supplies.
What is the operating frequency range of UC2842BDR2G?
- The operating frequency range of UC2842BDR2G is typically 100kHz to 500kHz.
What protections does UC2842BDR2G offer?
- UC2842BDR2G offers protections such as overcurrent protection, overvoltage protection, and thermal shutdown.
What is the output drive capability of UC2842BDR2G?
- The output drive capability of UC2842BDR2G is typically 1A.
What is the reference voltage of UC2842BDR2G?
- The reference voltage of UC2842BDR2G is typically 5V.
What is the temperature range for operation of UC2842BDR2G?
- The temperature range for operation of UC2842BDR2G is typically -40°C to 105°C.
What are the key features of UC2842BDR2G?
- Key features include a precision reference, low start-up current, and high output drive capability.