Maxim introduces the industry's only two-string HB (high-brightness) LED driver, the MAX16838, ideal for automotive electronics. The device integrates a boost or SEPIC switching converter, a 2-channel current sink regulator, and all necessary power MOSFETs. The MAX16838 optimizes conversion efficiency, provides complete fault protection, and achieves a 5,000:1 brightness adjustment range without the need for any external components. This HB LED driver is ideal for LCD backlight applications, especially for LCD backlights in automotive displays.
The MAX16838 optimizes conversion efficiency by automatically adjusting the output voltage of the switching converter to the supply voltage required by the LED. The device's patent-pending architecture enables a 5,000:1 ultra-wide LED brightness adjustment range at 200Hz and a 200kHz to 2MHz switching frequency that can be synchronized to an external clock to improve EMC performance. In addition, the MAX16838 offers a comprehensive range of protection features including LED fault protection, overtemperature and overvoltage protection. If an LED is open or shorted, the drive will automatically turn off the affected LED string and keep the other string working, which increases system reliability.
The MAX16838 is capable of delivering 150mA per string of LEDs and operates over the -40°C to +125°C automotive temperature range with a wide input voltage range of 4.75V to 40V. The device is available in thermally enhanced 4 x 4mm, 20-pin TQFN and TSSOP packages.
Recorder speaker is a kind of micro speaker unit which uses a diaphragm made of Mylar material. Mylar speakers are of ultrathin design and lightweight and clear voice. It is widely used in education industry (storyteller, voice E-book, repeater, reading pen-).
There are two types of Mylar speakers from the shapes:
1) Round shapes, we have products from 10mm to 57mm in diameter.
2) Oblong shape, we have products in sizes of 1510/1712/1813-..
FAQ
Q1. What is the MOQ?
XDEC: 2000pcs for one model.
Q2. What is the delivery lead time?
XDEC: 15 days for normal orders, 10 days for urgent orders.
Q3. What are the payment methods?
XDEC: T/T, PayPal, Western Union, Money Gram.
Q4. Can you offer samples for testing?
XDEC: Yes, we offer free samples.
Q5. How soon can you send samples?
XDEC: We can send samples in 3-5 days.
Recorder Speaker
Recorder Speaker,Car Recorder Speaker,Recording Pen Speaker,Dvr Speaker
Shenzhen Xuanda Electronics Co., Ltd , http://www.xdecspeaker.com