ISL6326IRZ-T

Product Overview

Category: Integrated Circuit (IC)

Use: Voltage Regulator

Characteristics: - High efficiency - Low dropout voltage - Wide input voltage range - Adjustable output voltage - Overcurrent protection - Thermal shutdown protection

Package: 32-Lead QFN (Quad Flat No-Lead)

Essence: The ISL6326IRZ-T is a voltage regulator IC designed for high-efficiency power management applications.

Packaging/Quantity: The ISL6326IRZ-T is available in a 32-Lead QFN package. It is typically sold in reels of 2500 units.

Specifications

Input Voltage Range: 4.5V to 28V
Output Voltage Range: 0.8V to 5.5V
Maximum Output Current: 6A
Dropout Voltage: 200mV at 3A
Operating Temperature Range: -40°C to +85°C

Pin Configuration

The ISL6326IRZ-T has a total of 32 pins. The pin configuration is as follows:

VIN: Input voltage
GND: Ground
VCC: Power supply for internal circuitry
FB1: Feedback voltage for channel 1
COMP1: Compensation node for channel 1
SS1: Soft-start control for channel 1
EN1: Enable control for channel 1
PG1: Power good indicator for channel 1
LGATE1: Low-side MOSFET gate driver for channel 1
HGATE1: High-side MOSFET gate driver for channel 1
BST1: Bootstrap capacitor connection for channel 1
LX1: Inductor connection for channel 1
PGND1: Power ground for channel 1
AGND: Analog ground
FB2: Feedback voltage for channel 2
COMP2: Compensation node for channel 2
SS2: Soft-start control for channel 2
EN2: Enable control for channel 2
PG2: Power good indicator for channel 2
LGATE2: Low-side MOSFET gate driver for channel 2
HGATE2: High-side MOSFET gate driver for channel 2
BST2: Bootstrap capacitor connection for channel 2
LX2: Inductor connection for channel 2
PGND2: Power ground for channel 2
VSENSE1: Current sense input for channel 1
VSENSE2: Current sense input for channel 2
ISENSE1: Current sense output for channel 1
ISENSE2: Current sense output for channel 2
VREF: Reference voltage output
PGOOD: Power good indicator
THERM: Thermal shutdown indicator
VCC3V3: 3.3V power supply output

Functional Features

Dual-channel voltage regulator
Adjustable output voltage through feedback resistors
Overcurrent protection with adjustable current limit
Thermal shutdown protection to prevent overheating
Power good indicator for each channel
Soft-start control for smooth startup
Bootstrap capacitor connection for high-side MOSFET gate drive

Advantages and Disadvantages

Advantages: - High efficiency for power-saving applications - Wide input voltage range allows for versatile use - Adjustable output voltage provides flexibility - Overcurrent and thermal shutdown protection ensure safety - Dual-channel design for multiple power outputs

Disadvantages: - Limited maximum output current of 6A - Dropout voltage of 200mV may affect performance in low voltage applications

Working Principles

The ISL6326IRZ-T is a dual-channel voltage regulator that converts an input voltage within the range of 4.5V to 28V into an adjustable output voltage between 0.8V and 5.5V. It utilizes a combination of high-side and low-side MOSFETs, along with feedback control, to regulate the output voltage.

The feedback voltage from the output is compared to a reference voltage, and the error signal is used to adjust the duty cycle of the MOSFETs, thereby regulating the output voltage. The soft-start control ensures a gradual increase in output voltage during startup, preventing excessive inrush current.

The ISL6326IRZ-T also incorporates overcurrent protection, which limits the output current to prevent damage to the circuit. In addition, it features thermal shutdown protection, which shuts down the regulator if the temperature exceeds a certain threshold, protecting it from overheating.

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Seznam 10 běžných otázek a odpovědí souvisejících s aplikací ISL6326IRZ-T v technických řešeních

Sure! Here are 10 common questions and answers related to the application of ISL6326IRZ-T in technical solutions:

Q: What is ISL6326IRZ-T? A: ISL6326IRZ-T is a highly integrated dual synchronous buck controller designed for high-performance power supply applications.
Q: What is the input voltage range supported by ISL6326IRZ-T? A: The input voltage range supported by ISL6326IRZ-T is typically between 4.5V and 24V.
Q: What is the output voltage range that can be achieved using ISL6326IRZ-T? A: The output voltage range that can be achieved using ISL6326IRZ-T depends on the external components used, but it is typically between 0.6V and 5.5V.
Q: Can ISL6326IRZ-T support multiple outputs? A: Yes, ISL6326IRZ-T can support multiple outputs by configuring it in a multi-phase operation.
Q: What is the maximum current that ISL6326IRZ-T can handle? A: ISL6326IRZ-T can handle a maximum current of up to 20A per phase.
Q: Does ISL6326IRZ-T have any built-in protection features? A: Yes, ISL6326IRZ-T has various built-in protection features such as overcurrent protection, overvoltage protection, undervoltage lockout, and thermal shutdown.
Q: Can ISL6326IRZ-T operate in a wide temperature range? A: Yes, ISL6326IRZ-T is designed to operate in a wide temperature range, typically from -40°C to 85°C.
Q: What type of control method does ISL6326IRZ-T use? A: ISL6326IRZ-T uses voltage mode control for regulating the output voltage.
Q: Can ISL6326IRZ-T be used in both synchronous and non-synchronous buck converter configurations? A: Yes, ISL6326IRZ-T can be used in both synchronous and non-synchronous buck converter configurations.
Q: Is there any evaluation board available for ISL6326IRZ-T? A: Yes, Intersil provides an evaluation board called ISL6326EVAL1Z for testing and evaluating the performance of ISL6326IRZ-T in various applications.

Please note that these answers are general and may vary depending on specific application requirements and design considerations.