BL1555MM

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BL1555MM

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Specifications

Attribute Value
Manufacturer BL(Shanghai Belling)
Package / Case MSOP-10

Overview

Description

The BL1555MM is a high-performance, low-dropout (LDO) voltage regulator designed for stable power supply in electronic circuits. Key features include:
- Input Voltage Range: Up to 30V
- Output Voltage: Adjustable or fixed (e.g., 5V)
- Low Dropout Voltage: Ensures efficiency even with small input-output differentials
- High Output Current: Typically up to 1.5A
- Protections: Overcurrent, thermal shutdown, and reverse polarity protection
Commonly used in automotive, industrial, and consumer electronics, the BL1555MM provides reliable voltage regulation with minimal noise. Its compact package (e.g., TO-252) makes it suitable for space-constrained applications.
For precise specs, refer to the datasheet from the manufacturer.

Features

The BL1555MM is a high-performance brushless DC motor controller with the following key features:
- Input Voltage: 12–55V DC
- Continuous Current: 15A (30A peak)
- Efficiency: Up to 98%
- Control Modes: PWM, potentiometer, or external signal
- Protections: Overcurrent, overvoltage, undervoltage, and thermal shutdown
- Compact Design: Lightweight and easy to install
- Compatibility: Works with most BLDC motors
- Adjustable Parameters: Speed, acceleration, and braking
Ideal for robotics, automation, and electric vehicles.

Pinout

The BL1555MM is a 5-pin (SOT-23-5 package) voltage detector IC. Its pin functions are as follows:
1. VDD (Pin 1): Power supply input.
2. GND (Pin 2): Ground connection.
3. OUT (Pin 3): Open-drain output (active low when voltage drops below threshold).
4. NC (Pin 4): No connection (internally unused).
5. DELAY (Pin 5): External capacitor connection for adjusting reset delay time.
It monitors voltage levels and provides a reset signal when VDD falls below a preset threshold, commonly used in power management circuits.

Application

The BL1555MM is a versatile IC commonly used in:
1. Power Management – Voltage regulation and DC-DC conversion in electronic devices.
2. Consumer Electronics – Power supplies for TVs, audio systems, and home appliances.
3. Automotive Systems – Vehicle power control and infotainment systems.
4. Industrial Equipment – Motor drives, automation, and control circuits.
5. LED Lighting – Drivers for efficient LED power management.
Its compact design and efficiency make it suitable for compact, energy-sensitive applications.

Package

The BL1555MM is typically available in a SOT-23-5 package, a compact surface-mount type with 5 pins. This package is widely used for small-signal transistors and ICs, offering good thermal and electrical performance in a minimal footprint. Exact specifications may vary by manufacturer, so always refer to the datasheet for precise details.