Antec's power management solutions for white LED controllers: APW7003, APW7008, APW7071 and APW7005, with low volume, low heat, long life, fast response, environmental protection and easy development of flat package Light and short products and other advantages. The APW7003 and APW7008 are non-inductive charge pump ICs. They require few external components, save application circuit volume, and have no inductive EMI interference. They are quite easy to use.
The APW7003 provides a stable 5V output voltage with an output current of 100mA. It can meet the application of 5 white LEDs in parallel (20mA each) and allows the PWM brightness to be adjusted by a PWM signal. The APW7008 is a 4-channel. The white LED driver IC, through three logic control pins, allows switching of multiple LED combinations, each channel providing high accuracy and high matching LED current, and allowing LEDs to be adjusted with a PWM signal. brightness. The APW7008 is capable of detecting input voltage changes and automatically operates in 1x, 1.5x, and 2x charge modes. When the IC is operating in 1x mode, the efficiency is as high as 80% to 90%.
In terms of protection functions, APW7003 and APW7008 are also quite complete, including functions such as thermal shutdown, overvoltage protection (APW7008), output short circuit protection and soft start activation. In addition, both ICs provide standby mode function and static when entering standby mode. The operating current can be less than 1 uA. The APW7003 is packaged in a lead-free package of SOT-23-6, and the APW7008 is a QFN-163×3 lead-free package. Both input voltage ranges are suitable for general single lithium battery applications.
The APW7005 (high current 950) and APW7071 (small current 400) operate at frequencies up to 1MHz, and only 0.1uF capacitor is required at the output to minimize external component performance. It operates between 2.5V to 6V input voltage range and is suitable for single lithium battery powered applications. A single lithium battery can drive 4 series white LEDs with built-in 18V overvoltage protection to avoid load emptying. Produces unexpected high pressure. Using PFM's control architecture, the efficiency can reach 85% at light load (Vin=3.5V, Loading=1mA, Vout=12V), and the highest efficiency can be as high as 87%. The internal 0.25V reference voltage, as the LED current limit can get the highest efficiency, and extend the battery life, APW7005 / APW7071 built-in current limit is 900mA / 400mA, both use SOT-23-6 packaging to save board space great help.
1
UTP Cat6 Cable
Lianxun Industries Co.Ltd. , http://www.szlxcable.com