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LP87702DRHBTQ1
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LP87702DRHBTQ1

Product Overview

  • Category: Integrated Circuit (IC)
  • Use: Power management for automotive applications
  • Characteristics: High efficiency, compact size, automotive-grade reliability
  • Package: QFN (Quad Flat No-Lead) package
  • Essence: Power management IC designed specifically for automotive systems
  • Packaging/Quantity: Tape and reel packaging, quantity varies based on customer requirements

Specifications

  • Input Voltage Range: 4.5V to 40V
  • Output Voltage Range: 0.8V to 5.5V
  • Number of Outputs: 7
  • Maximum Output Current: 2A per output
  • Operating Temperature Range: -40°C to +125°C
  • Efficiency: Up to 95%
  • Protection Features: Overvoltage protection, overcurrent protection, thermal shutdown, reverse polarity protection

Detailed Pin Configuration

The LP87702DRHBTQ1 has a total of 32 pins. Here is the detailed pin configuration:

  1. VIN: Input voltage
  2. VCC: Internal power supply
  3. GND: Ground
  4. EN: Enable pin
  5. PG: Power good indicator
  6. VSENSE1: Current sense input for output 1
  7. VOUT1: Output voltage for channel 1
  8. BST1: Boost capacitor connection for channel 1
  9. SW1: Switching node for channel 1
  10. FB1: Feedback pin for channel 1
  11. VSENSE2: Current sense input for output 2
  12. VOUT2: Output voltage for channel 2
  13. BST2: Boost capacitor connection for channel 2
  14. SW2: Switching node for channel 2
  15. FB2: Feedback pin for channel 2
  16. VSENSE3: Current sense input for output 3
  17. VOUT3: Output voltage for channel 3
  18. BST3: Boost capacitor connection for channel 3
  19. SW3: Switching node for channel 3
  20. FB3: Feedback pin for channel 3
  21. VSENSE4: Current sense input for output 4
  22. VOUT4: Output voltage for channel 4
  23. BST4: Boost capacitor connection for channel 4
  24. SW4: Switching node for channel 4
  25. FB4: Feedback pin for channel 4
  26. VSENSE5: Current sense input for output 5
  27. VOUT5: Output voltage for channel 5
  28. BST5: Boost capacitor connection for channel 5
  29. SW5: Switching node for channel 5
  30. FB5: Feedback pin for channel 5
  31. VSENSE6: Current sense input for output 6
  32. VOUT6: Output voltage for channel 6

Functional Features

  • High efficiency power conversion
  • Wide input voltage range for automotive applications
  • Multiple outputs with individual current sensing and voltage regulation
  • Overvoltage, overcurrent, and reverse polarity protection
  • Thermal shutdown to prevent overheating
  • Power good indicator for system monitoring

Advantages and Disadvantages

Advantages

  • Compact size and high integration
  • Automotive-grade reliability and durability
  • Efficient power management for automotive systems
  • Protection features ensure safe operation
  • Flexible output voltage options

Disadvantages

  • Limited number of outputs (7 channels)
  • Requires careful thermal management in high-temperature environments

Working Principles

The LP87702DRHBTQ1 is a power management IC designed specifically for automotive applications. It efficiently converts the input voltage to multiple regulated output voltages required by various components in the system. The IC incorporates a boost converter, buck converters, and LDOs (Low Dropout Regulators) to provide stable and efficient power supply to different loads.

The IC monitors the input voltage, output currents, and temperatures to ensure safe operation. It includes protection features such as overvoltage protection, overcurrent protection, thermal shutdown, and reverse polarity protection to safeguard the system from potential faults or failures.

Detailed Application Field Plans

The LP87702DRHBTQ1 is widely used in automotive systems where efficient power management is crucial. Some of the common application fields include:

  1. Electric vehicles: Powering the motor drive system, battery management system, and other auxiliary systems.
  2. Advanced driver-assistance systems (ADAS): Providing power to cameras, sensors, and control units.
  3. Infotainment systems: Supplying power to displays, audio systems, and connectivity modules.
  4. Lighting systems: Driving LED headlights, taillights, and interior lighting.
  5. Safety systems: Powering airbag control units, ABS

Senaraikan 10 soalan dan jawapan biasa yang berkaitan dengan aplikasi LP87702DRHBTQ1 dalam penyelesaian teknikal

  1. What is the input voltage range of LP87702DRHBTQ1?
    - The input voltage range of LP87702DRHBTQ1 is 2.7V to 5.5V.

  2. What is the maximum output current of LP87702DRHBTQ1?
    - LP87702DRHBTQ1 can provide a maximum output current of 2A per channel.

  3. Can LP87702DRHBTQ1 be used in automotive applications?
    - Yes, LP87702DRHBTQ1 is designed for automotive applications and is AEC-Q100 qualified.

  4. What is the thermal resistance of LP87702DRHBTQ1?
    - The thermal resistance of LP87702DRHBTQ1 is 40°C/W.

  5. Is LP87702DRHBTQ1 suitable for LED lighting applications?
    - Yes, LP87702DRHBTQ1 is well-suited for LED lighting applications with its high efficiency and dimming control features.

  6. Does LP87702DRHBTQ1 have built-in overcurrent protection?
    - Yes, LP87702DRHBTQ1 includes built-in overcurrent protection for each channel.

  7. Can LP87702DRHBTQ1 operate in a wide temperature range?
    - LP87702DRHBTQ1 is designed to operate in a wide temperature range from -40°C to 125°C.

  8. What is the typical quiescent current of LP87702DRHBTQ1?
    - The typical quiescent current of LP87702DRHBTQ1 is 60µA per channel.

  9. Is LP87702DRHBTQ1 compatible with I2C interface for control and monitoring?
    - Yes, LP87702DRHBTQ1 features an I2C interface for control and monitoring purposes.

  10. Can LP87702DRHBTQ1 be used in battery-powered devices?
    - Yes, LP87702DRHBTQ1 is suitable for battery-powered devices due to its low power consumption and wide input voltage range.