TOP253GN-TL

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

The TOP253GN-TL is a low-cost, off-line switcher IC for use in a high-efficiency and current-mode offline converters. The device is a single-chip and is optimized to meet the demanding efficiency requirements of low-cost, universal power supply systems. The device is primarily targeted for use in adapter, charger and LED driver applications for both commercial and industrial systems.

The TOP253GN-TL is a current mode PWM controller that operates from 230V AC mains. It features low power consumption, minimal total bill of materials, high efficiency, high power density, wide input voltage range, current source regulation and precise output voltage. The device contains a power switch, a sensed current circuit, an RCD clamp, an over current protection circuit, an overvoltage protection circuit, and a feedback control circuit. The voltage mode architecture of the controller allows a wide range of converter topologies including flyback, buck and boost. The device utilizes low-cost passive components including a low-cost, low-coverage primary side transformer and low-ESR secondary side output capacitors.

The TOP253GN-TL converter works in the primary side of the AC-DC converter and it provides the necessary voltage for secondary side PWM control providing isolated and isolated power supply. It also provides low-cost current sensing from the main transformer and also provides a wide over-current protection margin by controlling peak inductor current. In addition, the device is also equipped with a test pin to allow performance monitoring. It also provides fixed frequency constant-primary current mode PWM control for continuous production or burst mode control for light load problem.

The TOP253GN-TL converter supports a wide range of input voltage and is designed for input voltage up to 230V AC. It is designed with a built-in buffered rectifier circuit which helps minimize EMI. In addition, the device features a high-precision current source controller with wide open loop control to minimize the voltage on the output side of the switching transistor by providing a constant current regulation. The device also provides over-current protection and short circuit protection to ensure safe and efficient operation. In addition, the device can be operated in burst or discontinuous mode to further increase efficiency during few-load conditions.

The TOP253GN-TL is suitable for both commercial and industrial AC-DC applications, such as adapter, charger, and LED driver applications. It is designed to provide high efficiency while keeping low bill of materials, a low power consumption and a wide input voltage range.

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