BP2525X is an ultra-low standby power non-isolated step-down constant voltage

driver chip. Suitable for 85Vac~265Vac full voltage input

Non-isolated power supply.

The BP2525X chip integrates a high-voltage power switch inside, using voltage

The current control technology does not require an external loop compensation capacitor to realize the

It has excellent constant voltage characteristics, which greatly saves the system cost and system.

product.

The BP2525X chip adopts multi-mode control technology and outputs from 3.3V.

Power supply to VCC, effectively reduce system standby power consumption, improve efficiency

rate, and reduce the noise when the system works at light load.

BP2525X is available in SOT33-5A package.

Features

Low standby power consumption <20mW at 120Vac & 230Vac

Fixed 3.3V or 5V output voltage, selectable

Support direct output 3.3V

Internal integrated high voltage power tube

Integrated high voltage start-up and power supply circuits

Excellent dynamic response

Amplitude Modulation Technology to Reduce Audio Noise

Frequency jittering technology to improve EMI

±5% output voltage accuracy

Built-in soft start

Protective function

Overload protection

Short circuit protection

Over temperature protection

Cycle-by-cycle current limit

application

Due to market changes recently, many customers are looking for DP Micro's switching power supply chips to replace them in the market. DP2525A/B/C/D/E/F is divided into 6 gears, which correspond to TB5806A/B/C and TB5812A/B one by one. They are a high-precision off-line switching power supply circuit for low-power AC/DC chargers and adapters. Using the primary side sampling for precise constant current and constant voltage control can save the optocoupler and TL431 in general applications.

TB5806

In constant current mode, the output power can be set by the sampling resistor Rs externally connected to the CS pin. In the constant voltage mode, the various working modes of the chip can ensure high overall conversion efficiency. In addition, the chip has built-in wired voltage drop compensation, thus achieving a good load regulation rate. It works in the PFM state in constant current mode, in PWM state in constant voltage mode, and works with reduced frequency under light load. Provide power-on soft-start function and various self-recovery protection functions, including cycle-by-cycle current limit protection (OCP), VDD over-voltage protection (OVP), VDD over-voltage clamp, under-voltage protection (UVLO), over-temperature protection Wait. With the frequency jittering function, it can provide better EMI performance.

The switching power supply IC TB5806/ TB5812 is mainly suitable for chargers, low-power and low-cost chargers, adapters, control board power systems, and LED lighting drive power supplies.

: The Little Prince of Wutong Mountain