ISL97636AIRZ-T

Product Overview

Category: Integrated Circuit (IC)

Use: LED Driver

Characteristics: - High efficiency - Wide input voltage range - Dimming control - Over-temperature protection - Short-circuit protection

Package: 16-Lead QFN (Quad Flat No-Lead)

Essence: The ISL97636AIRZ-T is a high-efficiency LED driver IC designed for driving multiple strings of LEDs in backlighting applications.

Packaging/Quantity: The ISL97636AIRZ-T is available in a 16-Lead QFN package. The quantity per reel is 2500 units.

Specifications

• Input Voltage Range: 4.5V to 26V
• Output Voltage Range: Up to 40V
• Maximum Output Current: 30mA per channel
• Dimming Control: PWM (Pulse Width Modulation)
• Operating Temperature Range: -40°C to +85°C

Detailed Pin Configuration

The ISL97636AIRZ-T has a total of 16 pins. Here is the detailed pin configuration:

1. VIN: Input voltage
2. GND: Ground
3. VCC: Power supply voltage
4. EN: Enable pin
5. DIM: Dimming control input
6. FB1: Feedback pin for channel 1
7. FB2: Feedback pin for channel 2
8. FB3: Feedback pin for channel 3
9. FB4: Feedback pin for channel 4
10. FB5: Feedback pin for channel 5
11. FB6: Feedback pin for channel 6
12. FB7: Feedback pin for channel 7
13. FB8: Feedback pin for channel 8
14. FB9: Feedback pin for channel 9
15. FB10: Feedback pin for channel 10
16. VOUT: Output voltage

Functional Features

• High efficiency conversion of input voltage to output voltage for LED driving
• Multiple feedback channels for precise current regulation
• Dimming control through PWM signal input
• Over-temperature protection to prevent damage to the IC
• Short-circuit protection to safeguard the LEDs and the driver circuitry

Advantages and Disadvantages

Advantages: - High efficiency results in lower power consumption - Wide input voltage range allows for versatile applications - Dimming control enables brightness adjustment - Over-temperature and short-circuit protection enhance reliability

Disadvantages: - Limited maximum output current per channel (30mA)

Working Principles

The ISL97636AIRZ-T operates by converting the input voltage to a higher output voltage suitable for driving multiple strings of LEDs. The feedback pins sense the current flowing through each LED string, allowing for precise current regulation. The dimming control input accepts a PWM signal, which modulates the LED brightness by adjusting the duty cycle of the signal.

Detailed Application Field Plans

The ISL97636AIRZ-T is commonly used in various backlighting applications, including: - LCD monitors and televisions - Automotive displays - Industrial control panels - Signage and advertising displays

Detailed and Complete Alternative Models

Here are some alternative models that can be considered as alternatives to the ISL97636AIRZ-T:

1. LT3474: LED driver IC with similar features and package options.
2. TPS61165: High-efficiency LED driver IC with integrated boost converter.
3. MAX16834: LED driver IC with built-in fault protection features.

These alternative models offer similar functionality and can be used as replacements depending on specific application requirements.

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