【代理台湾聚积LED显示屏驱动IC--MBI5037】价格_厂家

类型

模数结合集成电路

用途

其他

功能

驱动电路

导电类型

双极型

封装外形

扁平型

集成度

超大规模>10000

工作电源电压

00V

最大功率

00W

工作温度

00℃

外形尺寸

00mm

品牌

其他

型号

MBI5037

加工定制

否

MBI5037 is an enhanced 16-channel constant current LED sink driver with advanced error detection functions and smart power-saving modes. MBI5037 succeeds MBI5026 and also exploits PrecisionDrive™ technology to enhance its output characteristics. Furthermore, MBI5037 uses the concept of Share-I-O™ technology to make MBI5037 package compatible with MBI5026 and extend its advanced functions, such as silent LED open circuit detection, silent LED short detection, leakage diagnosis, and temperature warning. With the Share-I-O™ technique, the printed circuit board originally designed for MBI5026 may be also applicable to MBI5037, if the /OE is controllable. In addition, MBI5037 features two power saving modes: sleep mode and 0-Power mode to increase the power efficiency. Therefore, MBI5037 is especially suitable for LED traffic sign and message sign applications.

MBI5037 provides “compulsory silent error detection”. Once the dedicated command is issued, all of the current output ports will be turned on in about 700ns interval with small current. The image will not be impacted since the turn-on duration and current are so small. MBI5037 may detect all of the current output ports and report the LED error status without comparing original data. Moreover, the settable threshold voltages for short-circuit detection and leakage diagnosis may comply with the variation of different LED forward voltage. Additionally, to ensure the system reliability, MBI5037 is built with thermal error flag to prevent IC from over temperature (160°C).

MBI5037 also features two power saving modes: sleep mode and 0-Power mode. Both modes reduce the supply current of MBI5037 to 200uA to save the power. Flexible for different applications, sleep mode can be issued by command, while 0-power mode is automatically activated when all the output data are 0. For the power saving purposes, MBI5037 is especially designed to save the supply current of LED drivers when most LEDs on LED traffic signs and message signs are usually turned off.

MBI5037 contains a 16-bit shift register and a 16-bit output latch, which convert serial input data into parallel output format. At MBI5037 output stages, sixteen regulated current output ports are designed to provide uniform and constant current sinks with small current variation between current output ports for driving LEDs within a wide range of forward voltage (VF) variations. Users may adjust the output current from 3mA to 80mA with an external resistor Rext, which gives users flexibility in controlling the light intensity of LEDs. MBI5037 guarantees to endure maximum 17V at the output ports. Besides, the high clock frequency up to 30MHz also satisfies the system requirements of high-volume data transmission.

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