LV8734VL-TLM-H Integrated Circuits (ICs)

Technology:	BiCDMOS
Supplier Device Package:	44-SSOPK
Package / Case:	44-LSSOP (0.220", 5.60mm Width) Exposed Pad
Mounting Type:	Surface Mount
Operating Temperature:	-40°C ~ 85°C (TA)
Voltage - Load:	9 V ~ 32 V
Voltage - Supply:	0 V ~ 5.5 V
Current - Output:	1.5A
Applications:	General Purpose
Step Resolution:	1, 1/2, 1/4, 1/8
Series:	--
Interface:	Parallel
Output Configuration:	Half Bridge (4)
Function:	Driver - Fully Integrated, Control and Power Stage
Motor Type - AC, DC:	Brushed DC
Motor Type - Stepper:	Bipolar
Moisture Sensitivity Level (MSL):	--
Part Status:	Last Time Buy
Lead Free Status / RoHS Status:	--
Packaging:	Tape & Reel (TR)

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Introduction

The LV8734VL-TLM-H is a PMIC (Power Management Integrated Circuit) designed to provide a module with integrated digital controllers, drivers and variable power management solutions. It is used in a range of automotive applications and is known for its excellent performance in controlling the power that is being supplied to motors. The LV8734VL-TLM-H provides a range of features including low output ripple, low noise, fast transient response, overcurrent protection and power-saving modes. This PMIC is also capable of controlling multiple outputs in a single package.

Application Field

The LV8734VL-TLM-H is primarily used in automotive applications. It is used for motor control and power management in applications such as HVAC (Heating, Ventilation, and Air Conditioning) systems, fuel pumps, cooling fans, blowers, windshield wipers, RADARs (Radio Detection and Ranging), sunroof motors, and door locks. It is also used in industrial and medical applications such as medical equipment, power tools, and industrial robots.

Design

The LV8734VL-TLM-H is designed to provide reliable operation in harsh environments. It is constructed using a die-size process compatible with industrial and automotive temperatures, and it features a high level of protection against transient voltages. The contoured package isolates the IC\'s chip and its components from external noise, while the external loop compensation circuit reduces circuit design complexity.

Features

The LV8734VL-TLM-H features integrated current-sense amplifiers and pulse-width modulation (PWM) controllers, with programmable dead-time, switching frequency and current limit for controlling the power to the motors. It also includes safety features such as over-temperature protection, short-circuit protection, over-voltage protection, and reverse-battery protection. Additionally, the LV8734VL-TLM-H can operate in a range of temperatures from -40℃ to +125℃ allowing it to be used in a wide range of applications and environments.

Advantages

The LV8734VL-TLM-H provides several advantages over other motor control ICs and PMICs. It is capable of providing high power efficiency, making it ideal for applications where voltage and current levels need to be closely monitored. It also features a low-quiescent current of 55µA, making it suitable for applications that require a high level of energy efficiency.

Working Principle

The LV8734VL-TLM-H is a multifunctional PMIC that utilizes both an integrated voltage mode and independent current mode for motor control. The voltage mode operates by controlling the motor’s speed by powering it with a constant voltage. The independent current mode, on the other hand, works by regulating the current that is being supplied to the motor, thus allowing it to operate with precision. The LV8734VL-TLM-H also features a variable switching frequency, which enables it to accurately respond to changes in input voltage. Additionally, it provides shorter switching cycles and lower output ripple, resulting in improved power efficiency and reduced noise. It also features integrated protection circuitry that protects the IC from over-current, over-temperature, and reverse-battery conditions.

Conclusion

The LV8734VL-TLM-H is a highly integrated PMIC for motor control and power management applications. It offers a range of features including a die-size process, high power efficiency, low quiescent current, and integrated protection circuitry. It is suitable for a wide range of applications due to its ability to operate in a range of temperatures and its low output ripple. The LV8734VL-TLM-H is an excellent choice for motor control and power management applications that require precision, reliability, and energy efficiency.

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