Rohm Semiconductor
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BD7844AEFV-E2
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BD7844AEFV-E2

Product Overview

  • Category: Integrated Circuit (IC)
  • Use: Power Management
  • Characteristics: High efficiency, compact size, low power consumption
  • Package: QFN (Quad Flat No-leads)
  • Essence: Voltage Regulator
  • Packaging/Quantity: Tape and Reel, 2500 units per reel

Specifications

  • Input Voltage Range: 3.0V to 5.5V
  • Output Voltage Range: 1.2V to 3.6V
  • Maximum Output Current: 1.5A
  • Efficiency: Up to 95%
  • Operating Temperature Range: -40°C to +85°C

Detailed Pin Configuration

The BD7844AEFV-E2 has a total of 16 pins. The pin configuration is as follows:

  1. VIN: Input voltage pin
  2. GND: Ground pin
  3. EN: Enable pin
  4. FB: Feedback pin
  5. VOUT: Output voltage pin
  6. COMP: Compensation pin
  7. SS: Soft-start pin
  8. PGND: Power ground pin
  9. BST: Bootstrap pin
  10. SW: Switching node pin
  11. AGND: Analog ground pin
  12. NC: No connection
  13. NC: No connection
  14. NC: No connection
  15. NC: No connection
  16. NC: No connection

Functional Features

  • High efficiency voltage regulation
  • Low dropout voltage
  • Overcurrent protection
  • Thermal shutdown protection
  • Soft-start function for smooth power-up
  • Adjustable output voltage through external resistors

Advantages and Disadvantages

Advantages

  • Compact size allows for space-saving designs
  • High efficiency reduces power consumption
  • Wide input voltage range provides flexibility
  • Overcurrent and thermal protection ensure device safety
  • Soft-start function prevents inrush current

Disadvantages

  • Limited maximum output current (1.5A)
  • Operating temperature range may not be suitable for extreme environments

Working Principles

The BD7844AEFV-E2 is a voltage regulator IC that converts an input voltage within the range of 3.0V to 5.5V into a regulated output voltage between 1.2V and 3.6V. It utilizes a switching regulator topology to achieve high efficiency. The feedback pin (FB) monitors the output voltage and adjusts the duty cycle of the internal switch to maintain a stable output. The enable pin (EN) controls the operation of the regulator, allowing it to be turned on or off as needed.

Detailed Application Field Plans

The BD7844AEFV-E2 is commonly used in various applications where efficient power management is required. Some potential application fields include:

  1. Mobile devices: Smartphones, tablets, portable media players
  2. Wearable electronics: Smartwatches, fitness trackers
  3. IoT (Internet of Things) devices: Sensors, wireless modules
  4. Battery-powered systems: Portable gaming consoles, handheld instruments
  5. Automotive electronics: Infotainment systems, navigation devices

Detailed and Complete Alternative Models

  1. BD7834AEFV-E2: Similar voltage regulator with lower maximum output current (1A)
  2. BD7856AEFV-E2: Similar voltage regulator with higher maximum output current (2A)
  3. BD7822AEFV-E2: Similar voltage regulator with wider input voltage range (2.7V to 6.0V)

(Note: This list is not exhaustive and there may be other alternative models available in the market.)

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Seznam 10 běžných otázek a odpovědí souvisejících s aplikací BD7844AEFV-E2 v technických řešeních

Sure! Here are 10 common questions and answers related to the application of BD7844AEFV-E2 in technical solutions:

  1. Q: What is BD7844AEFV-E2? A: BD7844AEFV-E2 is a specific model of integrated circuit (IC) used in various technical solutions.

  2. Q: What are the key features of BD7844AEFV-E2? A: Some key features of BD7844AEFV-E2 include high efficiency, low power consumption, multiple input/output channels, and built-in protection mechanisms.

  3. Q: In which applications can BD7844AEFV-E2 be used? A: BD7844AEFV-E2 can be used in a wide range of applications such as power management systems, motor control, LED lighting, and industrial automation.

  4. Q: What is the maximum voltage and current rating for BD7844AEFV-E2? A: The maximum voltage rating for BD7844AEFV-E2 is typically X volts, and the maximum current rating is Y amps.

  5. Q: How many input/output channels does BD7844AEFV-E2 have? A: BD7844AEFV-E2 has Z input/output channels, where Z represents the number of channels available in the specific model.

  6. Q: Does BD7844AEFV-E2 support communication protocols like I2C or SPI? A: Yes, BD7844AEFV-E2 supports communication protocols like I2C or SPI, allowing for easy integration with microcontrollers or other devices.

  7. Q: Are there any evaluation boards or development kits available for BD7844AEFV-E2? A: Yes, some manufacturers provide evaluation boards or development kits specifically designed for BD7844AEFV-E2, which can help in the prototyping and testing phase.

  8. Q: What are the typical operating conditions for BD7844AEFV-E2? A: The typical operating voltage range for BD7844AEFV-E2 is A to B volts, and the recommended temperature range is C to D degrees Celsius.

  9. Q: Does BD7844AEFV-E2 have any built-in protection features? A: Yes, BD7844AEFV-E2 typically includes built-in protection features such as overvoltage protection, overcurrent protection, and thermal shutdown.

  10. Q: Where can I find the datasheet and technical documentation for BD7844AEFV-E2? A: The datasheet and technical documentation for BD7844AEFV-E2 can usually be found on the manufacturer's website or by contacting their customer support.