LYT4221E3

LYT4221E3 Its output current/channel is 1.37A (Switch), suitable for driving most LEDs, ensuring sufficient and uniform brightness. The dimming method adopts -, which achieves more precise brightness control by precisely controlling the LED's conduction time.

Features

LYT4221E3 Its output current/channel is 1.37A (Switch), suitable for driving most LEDs, ensuring sufficient and uniform brightness. The dimming method adopts Dimming, which achieves more precise brightness control by precisely controlling the LED's conduction time.

The operating frequency of the chip is 132kHz, and the high-frequency operation ensures response speed and stability. In addition, the chip Yes has built-in switch functions, making it more adaptable to different circuit requirements. The installation type is Through Hole, which facilitates integration into LED circuit boards and improves production efficiency.

The output quantity of PMIC chip LYT4221E3 reaches 1 channels, which means that one chip can simultaneously drive 1 LEDs, greatly simplifying circuit design and reducing costs. The chip adopts eSIP-7C packaging, which has good heat dissipation effect. The operating temperature range is -40°C ~ 150°C (TJ), and the wide operating temperature range allows the chip to operate stably in various environments.

The topology structure is Flyback, Step-Down (Buck), Step-Up (Boost), which enables the chip to drive multiple LEDs in sequence, improving driving efficiency. The type is AC DC Offline Switcher driver, ensuring the stability and brightness consistency of LED driving. The voltage output is -, suitable for most LED driving needs. The maximum value of the power supply voltage is 300VAC, and the minimum value is 160VAC. This voltage range allows the chip to adapt to various power environments.

In terms of packaging and packaging, the manufacturer Power Integrations of this LYT4221E3 adopts the 7-SSIP, 6 Leads, Exposed Pad, Formed Leads packaging form, providing more options for automated production and assembly. In addition, the IC adopts a Tube packaging method, which is convenient for storage and transportation.

Applications

● Automotive Electronics

LED headlights, LED daytime running lights, LED fog lights, etc.

● Lighting equipment

Used to drive LED bulbs, LED strips, LED lighting fixtures, etc. They achieve LED brightness adjustment, color temperature adjustment, and other functions by precisely controlling the current and voltage of the LED.

● Display applications

Such as LED display screens, LED TVs, LED billboards, etc. They are responsible for driving the emission of LED pixels and achieving the display of images and text.

● Consumer sector

Mobile phones, tablets, laptops, etc. Among these devices, LED driver chips are used to drive LED components such as backlight and indicator lights, achieving the lighting and display functions of the devices.