深圳深爱半导体股份有限公司

产品规格书

Shenzhen SI Semiconductors Co., LTD.

Product Specification

High Precision Non-Isolated BUCK LED Driver

SIC9521/9522

Si semiconductors

SIC9521/SIC9522_EN_Rev2.0

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General Description

The SIC9521/SIC9522 are high precision Non-Isolation LED drivers for buck LED lighting

application. They are suited AC 85V-265V non-isolated LED driver supply Typical ± 5% Output

current accuracy achieved by built-in high precision sampling and compensation circuit.

Integrated 500V power MOSFET, without secondary feedback circuit, also need not compensation

circuit, the drivers have good performance with very simple peripheral circuits.

The SIC9521/SIC9522 have multi-protection functions which largely enhance the safety and

reliability of the system, including VCC over-voltage protection, VCC UVLO, short-circuit

protection, cycle-by-cycle current limit and over-temperature protection.

The SIC9521/SIC9522 are available in compact TO-94 package.

Features

• Simple peripheral circuits

• Integrated 500V power MOSFET

• Typical ± 5% Output current accuracy

• Ultra-low operating current, without auxiliary

winding detection and power supply

• Continuous inductor current mode

• LED short protection

• Sampling resistor open circuit protection

• Over temperature protection

Typical Application