May see from the above each request, how does the challenge lie in designs one kind of solution, can while reduce the function which, the flexibility, the system reliability and the integration rate the system cost provides needs.
One kind of possibility's solution is uses ASL1010PTK which graciousness wisdom water's edge semiconductor provides driver IC. ASL1010PTK driver IC integrated the automobile LED lamp essential core function, is one kind of compact integration solution, and does not need to increase the extra part.
Speaking of the LED module,LED Panel Light wholesale design, is advantageous in reduces the cost, the enhancement esthetic sense, to enhance the reliability. In addition, this system solution has the extremely high flexibility, not automobile platform and LED disposition limit, moreover does not need the redesign PCB circuit wafer. The integrated type design has avoided the different platform redundant function as well as sets at the micro controller's need outward, thus system cost control in low level.
ASL1010PTK driver IC uses the voltage dropping/pressure-rise topology, the use standard car battery voltage then safe actuation reaches 20 LED lamps; The output voltage is extremely nimble, the scope is 6V to 60V, supports in the present market each kind of LED, very suitable to actuate in the automobile application high luminance LED. Figure 2 the schematic drawing has demonstrated one kind of driver electric circuit's typical voltage reference design.
ASL1010PTK driver IC makes (this based on the ABCD9 technology node is graciousness wisdom water's edge impetus simulation composite signal integration automobile technology platform). Thus, the driver may work in 6V to the 60V supply voltage, thus achieves the beginning and end condition as well as the ISO7637 standard related transient voltage request.
Because the driver IC integration rate is very high, therefore using the design while only need extremely few exterior module's, but can also maintain system's flexibility. In shown in Figure 2 in the application schematic drawing, has realized the temperature feedback function through the few modules, may control LED the temperature and the performance;
The failure detection function, may when LED presents ,LED Spotlight wholesale the breakdown provides the feedback; The short circuit protection function, causes LED and driver IC is exempt from the battery and the place pin short circuit influence; Nimble electric current choice and PWM programming function; Adjustable LED internal PWM has the function, the permission identical LED lamp simultaneously serves as goes during the day the lamp and the stop light. LED undervoltage and overvoltage protection.
Is small with the aid of this section of size, the heat dispersion good component (HVSON14), driver IC may be the LED string LED Tube provides highest 1The electric current. Because has used the high accuracy integrated current supply, this driver IC may eliminate any LED ripple electric current effectively, does not need to increase the extra exterior module.
