Overview
The LM3410YMY/NOPB is a high-frequency, constant-current LED driver IC produced by Texas Instruments. This device is part of the LM3410 series, which includes the LM3410 and LM3410-Q1 models. It operates as a boost regulator, regulating the output current that passes through LEDs, making it ideal for various LED lighting applications. The LM3410YMY/NOPB is available in an 8-pin HVSSOP (DGN) package and features internal compensation, reducing the need for external components and simplifying the design process.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Input Voltage | 2.7 to 5.5 | V |
| Output Voltage | 3 to 24 | V |
| Switching Frequency | 525 kHz (LM3410Y) | kHz |
| Switch Current Limit | 2.1 to 2.8 | A |
| Switch On Resistance | 170 to 330 | mΩ |
| Feedback Voltage | 178 to 202 | mV |
| Operating Junction Temperature | -40 to 125 | °C |
| Thermal Shutdown Temperature | 165 | °C |
| Package Type | 8-pin HVSSOP (DGN) |
Key Features
- Qualified for automotive applications with AEC-Q100 compliance and device temperature grade 1: -40°C to 125°C ambient operating temperature range.
- High switching frequency options: 525 kHz (LM3410Y) and 1.6 MHz (LM3410X), allowing the use of small surface mount inductors and capacitors.
- Internal compensation and current-mode, PWM operation for high-performance over a wide range of operating conditions.
- Internal soft start and thermal shutdown for enhanced reliability.
- PWM dimming capability with duty cycle control from 0% to 100% using the DIM pin.
- Ultra-low standby current of 80 nA during shutdown.
- Cycle-by-cycle current limiting to protect the internal NMOS switch.
Applications
- LED backlight current sources for displays and lighting systems.
- Lithium-ion battery-powered backlight OLED and HB LED drivers.
- Handheld devices requiring efficient LED lighting.
- LED flash drivers for camera and other applications.
- Automotive lighting systems, including dashboard and interior lighting.
Q & A
- What is the input voltage range of the LM3410YMY/NOPB?
The input voltage range is from 2.7 V to 5.5 V.
- What are the switching frequency options for the LM3410 series?
The LM3410 series offers switching frequencies of 525 kHz (LM3410Y) and 1.6 MHz (LM3410X).
- What is the typical switch current limit of the LM3410YMY/NOPB?
The typical switch current limit is 2.8 A).
- How does the LM3410YMY/NOPB regulate LED current?
The device regulates the output current using current-mode control and an internal feedback voltage of 190 mV).
- What is the thermal shutdown temperature of the LM3410YMY/NOPB?
The thermal shutdown temperature is 165°C).
- Can the LM3410YMY/NOPB be used in automotive applications?
Yes, it is qualified for automotive applications with AEC-Q100 compliance).
- How does the DIM pin control the LED brightness?
The DIM pin allows PWM dimming with a duty cycle control from 0% to 100%).
- What is the standby current during shutdown?
The standby current during shutdown is 80 nA).
- What type of package does the LM3410YMY/NOPB come in?
The LM3410YMY/NOPB comes in an 8-pin HVSSOP (DGN) package).
- What are some common applications of the LM3410YMY/NOPB?
Common applications include LED backlight current sources, handheld devices, LED flash drivers, and automotive lighting systems).
