L6911C Allicdata Electronics
Allicdata Part #:

L6911C-ND

Manufacturer Part#:

L6911C

Price: $ 0.00
Product Category:

Integrated Circuits (ICs)

Manufacturer: STMicroelectronics
Short Description: IC REG CTRLR BUCK 20SOIC
More Detail: Buck Regulator Positive Output Step-Down DC-DC Co...
DataSheet: L6911C datasheetL6911C Datasheet/PDF
Quantity: 1000
1 +: 0.00000
Stock 1000Can Ship Immediately
$ 0
Specifications
Frequency - Switching: 200kHz
Base Part Number: L6911
Supplier Device Package: 20-SO
Package / Case: 20-SOIC (0.295", 7.50mm Width)
Operating Temperature: 0°C ~ 125°C (TJ)
Control Features: Current Limit, Frequency Control, Phase Control, Power Good, Soft Start
Serial Interfaces: --
Clock Sync: No
Synchronous Rectifier: Yes
Duty Cycle (Max): 100%
Series: --
Voltage - Supply (Vcc/Vdd): 5 V ~ 12 V
Output Phases: 1
Number of Outputs: 1
Topology: Buck
Output Configuration: Positive
Function: Step-Down
Output Type: Transistor Driver
Part Status: Obsolete
Packaging: Tube 
Description

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Introduction

The L6911C is an integrated circuit (IC) designed by ST Microelectronics. It is an advanced integrated buck-boost DC-DC controller integrated with an advanced gate driver and multiple safety features, making it ideal for low- and mid-power applications. It provides a motor driver solution that enables high-performance and efficient motor control with a wide voltage range. This article will explain the application fields and working principle of the L6911C.

Application Fields

The L6911C is suitable for a wide range of application fields and has multiple features that make it an ideal choice for various low- and mid-power applications, including:

  • Automobile Services: Automobile services such as electric power steering, anti-locking brake systems, and air conditioning, require efficient motor control with wide voltage range.
  • Industrial and Home Appliances: The L6911C can be used in household and industrial appliances such as washing machines, vacuum cleaners, dust collectors, and blenders.
  • Medical Devices: Medical devices and equipment that require precise motor control with a wide voltage range.
  • Security and Surveillance: Security and surveillance systems like video or security cameras require efficient motor control with wide voltage range.

The L6911C has several features that make it suitable and efficient for these applications, including a wide 4.5V-42V voltage range, adjustable output current limit, integrated gate driver, and multiple safety features.

Working Principle

The L6911C is composed of a synchronous buck-boost DC-DC controller and a gate driver with multiple protection features, making it suitable for a wide variety of applications. The operating principle of the L6911C can be divided into two parts:

1. Buck-Boost DC-DC Controller

The buck-boost controller is a type of DC-DC converter that can provide a regulated output voltage over a wide range of input voltages. The controller uses a pulse width modulation (PWM) technique to control the voltage and current of the DC-DC converter. It operates by switching an internal switching transistor at a certain frequency, which changes the output voltage based on the input voltage.

2. Gate Driver

The integrated gate driver of the L6911C provides a higher switching speed and enhanced dead time control. It features advanced over-current protection, over-temperature protection, and short-circuit protection. The gate driver is used to ensure that the device operates safely and efficiently. It is also used to ensure that the output current is always maintained within a specified range.

Conclusion

The L6911C is an advanced integrated buck-boost DC-DC controller integrated with an advanced gate driver and multiple safety features, making it ideal for low- and mid-power applications. It is suitable for a wide range of application fields, including automobile services, industrial and home appliances, medical devices, and security and surveillance systems. This article detailed the application fields and working principle of the L6911C.

The specific data is subject to PDF, and the above content is for reference

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