BD9882F-E2
Product Overview
Category: Integrated Circuit (IC)
Use: Power Management IC for LED Lighting Applications
Characteristics: - High efficiency - Low power consumption - Compact size - Wide input voltage range - Overcurrent protection - Thermal shutdown protection
Package: SOP-8
Essence: The BD9882F-E2 is a power management IC specifically designed for LED lighting applications. It provides efficient and reliable power supply to drive LEDs in various lighting systems.
Packaging/Quantity: The BD9882F-E2 is available in a standard SOP-8 package. It is typically sold in reels containing 2500 units.
Specifications
- Input Voltage Range: 4.5V - 40V
- Output Voltage Range: 1.2V - 36V
- Maximum Output Current: 1.5A
- Switching Frequency: 300kHz
- Operating Temperature Range: -40°C to +85°C
Detailed Pin Configuration
The BD9882F-E2 has the following pin configuration:
- VCC: Power supply input
- GND: Ground
- FB: Feedback pin for output voltage regulation
- EN: Enable pin to control the IC's operation
- VIN: Input voltage pin
- SW: Switching pin for driving the external power switch
- LX: Inductor connection pin
- COMP: Compensation pin for stability control
Functional Features
- Constant current control for LED driving
- Built-in overcurrent protection
- Thermal shutdown protection
- Soft-start function to prevent excessive inrush current
- Adjustable output voltage through feedback pin
- Wide input voltage range for versatile applications
Advantages and Disadvantages
Advantages: - High efficiency resulting in energy savings - Compact size for space-constrained applications - Wide input voltage range allows for flexibility in design - Overcurrent and thermal protection ensure system reliability - Soft-start function prevents damage from excessive current
Disadvantages: - Maximum output current limited to 1.5A, may not be suitable for high-power LED applications - Switching frequency of 300kHz may cause audible noise in certain applications
Working Principles
The BD9882F-E2 operates as a buck converter, converting the input voltage to a lower regulated output voltage suitable for driving LEDs. It utilizes pulse width modulation (PWM) to control the duty cycle of the switching transistor, regulating the output current to maintain constant brightness in the LEDs.
Detailed Application Field Plans
The BD9882F-E2 is widely used in various LED lighting applications, including: - Indoor and outdoor lighting systems - Automotive lighting - Backlighting for LCD displays - Street lighting - Architectural lighting
Detailed and Complete Alternative Models
- BD9882F-E2R: Same specifications and features as BD9882F-E2, but with reverse pin configuration.
- BD9883F-E2: Higher maximum output current of 2.5A, suitable for higher power LED applications.
- BD9884F-E2: Similar specifications to BD9882F-E2, but with additional dimming control feature.
Note: This is not an exhaustive list of alternative models. Please refer to the manufacturer's datasheet for a complete list of alternatives.
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기술 솔루션에 BD9882F-E2 적용과 관련된 10가지 일반적인 질문과 답변을 나열하세요.
Sure! Here are 10 common questions and answers related to the application of BD9882F-E2 in technical solutions:
Q: What is BD9882F-E2? A: BD9882F-E2 is a power management IC (PMIC) designed for use in various technical solutions, including consumer electronics, industrial equipment, and automotive applications.
Q: What are the key features of BD9882F-E2? A: Some key features of BD9882F-E2 include multiple voltage regulators, overcurrent protection, thermal shutdown, and low standby current consumption.
Q: How many voltage regulators does BD9882F-E2 have? A: BD9882F-E2 has three voltage regulators: one step-down (buck) regulator and two LDO (low-dropout) regulators.
Q: What is the input voltage range supported by BD9882F-E2? A: The input voltage range supported by BD9882F-E2 is typically between 4.5V and 18V.
Q: Can BD9882F-E2 handle high currents? A: Yes, BD9882F-E2 is capable of handling high currents, with a maximum output current of up to 2A for the buck regulator and up to 500mA for each LDO regulator.
Q: Does BD9882F-E2 provide any protection features? A: Yes, BD9882F-E2 includes overcurrent protection, thermal shutdown, and undervoltage lockout (UVLO) features to ensure safe operation.
Q: Is BD9882F-E2 suitable for automotive applications? A: Yes, BD9882F-E2 is designed to meet the requirements of automotive applications, including a wide operating temperature range and AEC-Q100 qualification.
Q: Can BD9882F-E2 be used in battery-powered devices? A: Yes, BD9882F-E2 is suitable for battery-powered devices as it offers low standby current consumption, helping to extend battery life.
Q: What are the typical applications of BD9882F-E2? A: BD9882F-E2 can be used in a wide range of applications, including smartphones, tablets, set-top boxes, industrial control systems, and automotive infotainment systems.
Q: Are there any evaluation boards or reference designs available for BD9882F-E2? A: Yes, ROHM Semiconductor provides evaluation boards and reference designs for BD9882F-E2, which can help developers quickly prototype and integrate the IC into their solutions.
Please note that these answers are general and may vary depending on the specific requirements and use cases. It's always recommended to refer to the datasheet and application notes provided by the manufacturer for detailed information.