L6388D

Product Overview

• Category: Integrated Circuit
• Use: Motor Driver
• Characteristics: High voltage, high current, half-bridge driver
• Package: SOIC-20
• Essence: Power management IC for driving motors
• Packaging/Quantity: Tape and reel, 2500 units per reel

Specifications

• Supply Voltage: 8V to 52V
• Output Current: Up to 4A
• Operating Temperature: -40°C to +150°C
• Switching Frequency: Up to 100 kHz
• Protection Features: Overcurrent, undervoltage, and overtemperature protection

Pin Configuration

The L6388D package consists of 20 pins. The pin configuration is as follows:

1. VCP - Charge pump capacitor connection
2. VCP - Charge pump capacitor connection
3. GND - Ground
4. VCC - Logic supply voltage
5. VREF - Reference voltage output
6. INH - Inhibit input
7. INL - Low-side gate driver input
8. COM - Common connection
9. OUTL - Low-side gate driver output
10. VS - Sense resistor connection
11. CS - Current sense output
12. VBOOT - Bootstrap voltage supply
13. HO - High-side gate driver output
14. LO - Low-side gate driver output
15. HIN - High-side gate driver input
16. LIN - Low-side gate driver input
17. GND - Ground
18. VCC - Logic supply voltage
19. VCP - Charge pump capacitor connection
20. VCP - Charge pump capacitor connection

Functional Features

• High voltage half-bridge driver with integrated charge pump
• Designed for driving N-channel power MOSFETs or IGBTs
• Integrated bootstrap diode for high-side driver
• Adjustable deadtime for optimized switching performance
• Overcurrent protection with adjustable threshold
• Undervoltage lockout protection
• Thermal shutdown protection

Advantages and Disadvantages

Advantages: - High voltage and current capability - Integrated charge pump simplifies the design - Adjustable deadtime for improved efficiency - Comprehensive protection features ensure system reliability

Disadvantages: - Limited to driving N-channel power devices only - Requires external sense resistor for current sensing

Working Principles

The L6388D is a half-bridge driver IC used for driving motors. It operates by controlling the switching of N-channel power MOSFETs or IGBTs in a half-bridge configuration. The integrated charge pump generates a higher voltage required for driving the high-side power device. The deadtime can be adjusted to optimize the switching performance and minimize shoot-through currents. The IC also provides various protection features such as overcurrent, undervoltage, and thermal shutdown.

Application Field Plans

The L6388D is widely used in various motor control applications, including:

1. Industrial automation systems
2. Robotics
3. Electric vehicles
4. HVAC systems
5. Appliances
6. Power tools

Alternative Models

Some alternative models that provide similar functionality to the L6388D are:

1. DRV8301 - Texas Instruments
2. IR2104 - Infineon Technologies
3. HIP4081A - Intersil Corporation
4. MC33883 - NXP Semiconductors
5. BTS7960 - Infineon Technologies

These models offer comparable features and can be considered as alternatives based on specific application requirements.

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