BD9890FV-E2

Product Overview

Category: Integrated Circuit (IC)

Use: Power Management IC

Characteristics: - High efficiency voltage regulator - Low power consumption - Compact size - Wide input voltage range - Overcurrent protection - Thermal shutdown protection

Package: SOP-8 (Small Outline Package)

Essence: The BD9890FV-E2 is a power management IC designed to regulate voltage efficiently in various electronic devices.

Packaging/Quantity: Available in reels of 2500 units per reel.

Specifications

• Input Voltage Range: 4.5V - 18V
• Output Voltage Range: 1.2V - 12V
• Output Current: Up to 1A
• Quiescent Current: 50μA (typical)
• Operating Temperature Range: -40°C to +85°C

Detailed Pin Configuration

The BD9890FV-E2 has the following pin configuration:

1. VCC: Power supply input
2. GND: Ground reference
3. FB: Feedback pin for output voltage regulation
4. EN: Enable pin to control the device operation
5. SS: Soft-start capacitor connection
6. COMP: Compensation pin for stability adjustment
7. PG: Power Good indicator output
8. OUT: Regulated output voltage

Functional Features

• High efficiency voltage regulation
• Overcurrent protection to prevent damage to the IC and connected devices
• Thermal shutdown protection to prevent overheating
• Soft-start function for smooth power-up
• Power Good indicator for system monitoring

Advantages

• High efficiency results in reduced power consumption
• Wide input voltage range allows compatibility with various power sources
• Compact size enables space-saving designs
• Overcurrent and thermal protection enhance system reliability
• Soft-start function prevents excessive inrush current during startup

Disadvantages

• Limited output current capacity (up to 1A)
• Requires external compensation for stability adjustment

Working Principles

The BD9890FV-E2 operates as a voltage regulator by converting the input voltage to a stable and regulated output voltage. It utilizes internal circuitry to monitor and adjust the output voltage based on the feedback received from the FB pin. The IC also incorporates overcurrent and thermal protection mechanisms to ensure safe operation.

Detailed Application Field Plans

The BD9890FV-E2 is widely used in various electronic devices that require efficient voltage regulation, such as: - Mobile phones - Tablets - Portable gaming consoles - Digital cameras - Portable audio players

Detailed and Complete Alternative Models

1. BD9890FV: Similar specifications and features, but available in a different package (SSOP-8).
2. BD9876G: Power management IC with higher output current capacity (up to 3A) and additional features like adjustable output voltage and power sequencing.
3. BD9845FV: Voltage regulator IC with lower output current capacity (up to 500mA) but smaller package size (SOT-23).

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

In conclusion, the BD9890FV-E2 is a highly efficient power management IC designed for voltage regulation in various electronic devices. Its compact size, wide input voltage range, and built-in protection features make it suitable for a wide range of applications. However, its limited output current capacity and requirement for external compensation should be considered when selecting alternative models.