TPS92640PWPR/NOPB

Due to market price fluctuations, if you need to purchase or consult the price. You can contact us or emial to us:   sales@allicdata.com

PMIC - LED Drivers

TPS92640PWPR/NOPB is a three-channel LED driver system-on-chip that enables designers to cost-effectively drive up to nine LED strings with one LED driver IC. The LED string consists of up to nine channels, each having six LEDs in series. The TPS92640PWPR/NOPB is designed for driving a wide range of LED strings with fixed currents. This LED driver integrates three independent LED drivers that can operate either independently or simultaneous. It supports white, amber and red LEDs.

Application Field

The TPS92640PWPR/NOPB is suitable for applications that require cost effective and adjustable LED string current drive, such as:
• LCD backlighting
• Digital cameras
• Automotive lamps
• Rear projection displays
• Handheld/wireless devices
• LCD/OLED displays
• Illuminated automotive controls

Working Principle

The operating principle of the TPS92640PWPR/NOPB is based on a pulse width modulation (PWM) control. This is a common control mode for LED driver applications. PWM control works by modulating the width of the LED current pulses. By increasing the pulse width, the LED current increases. The LED driver can be programmed to operate in either a linear or a pulse width modulation mode. In the linear mode, the LED current is ramped up/down linearly, while in the PWM mode, the LED current is constantly changing.The TPS92640PWPR/NOPB includes a 3-channel PWM output stage, 3-channel LED current source and a PWM block. The LED current source is controlled by a dedicated PWM channel, while the PWM stage is controlled by the PWM block. Each PWM output has an LED current limit, a short-circuit/overtemperature protection and a voltage-clamp.The LED driver can be programmed through the I2C port, allowing adjustment of the LED current, dimming ratio and PWM frequency. The I2C interface also allows you to monitor the LED current and temperature.

The TPS92640PWPR/NOPB offers several features designed to ensure the safety and reliability of the LED array. These include over-voltage protection, current limiting, over-temperature protection and short-circuit protection. Optional features include programmable dimming ratio and on/off control.

In summary, the TPS92640PWPR/NOPB is a three-channel cost-effective LED driver solution that enables designers to drive up to nine LED strings with one LED driver IC. With its PWM control, adjustable LED current, short-circuit and over-temperature protection and I2C control interface, the TFS92640PWPR/NOPB is an ideal solution for many LED lighting applications.

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