Applicationt:
Acura, Alfa romeo, Aston martin, audi, Aux, Baolong, Beiqi, Bentley, BMW, Bugatti, Buick, BYD, cadillac, Changan, Changfeng, Chery, chevolet, Chrysler, Citroen, Changhe Auto, Dadi, DAEWOO, Daihatsu, Dodge, Dongfeng, DADI Auto, Ferrari, fiat, Ford, Foton, Fuqi, Geely, GMC, Gonow, Great wall, Hafei, HAMA, Honda, Hongqi, Huandai, Huizhong, Hummer, Hyundai, Huanghai Auto, Infiniti, iveco, Jaguar, Jeep, Jinbei, JMC, JAC, Kia, Lamborghini, Land rover, Landwind, Lexus, Lincoln, Lotus, LIFAN, Maserati, Maybach, Mazda, Mercedes Benz, MG, Mini, Misubishi, Mitsubishi, Monaro, Nissan, OPEL, Pagani, Peugeot, Porsche, Polarsun Automobile, Renault, Rolls Royce, Rowe, SAAB, Shuanghuan, Shuguang, Skoda, Smart, Soueast, Spyker, ssangyong, SUBARU, Suzuki, Shanghai Maple, Tianma, Toyota, Toyota, volkswagen, volvo, VW, Wanfeng, Wuling, Xiali, Ycaco, Zhonghua, Zhongxing, Zotye
Production Description:
Description
The bipolar integrated circuit LT4761 is used in relay-controlled automotive flashers where a high-level EMC is required.
Lamp outage is indicated by frequency doubling during hazard warning as well as direction mode.
Features
Quiescent current <5mA
Wide operating voltage, up to 33V
Strong anti-interference abilityFeatures
Quiescent current <5mA
Wide operating voltage, up to 33V
Strong anti-interference ability
Functional Description
The circuit is directly coupled by an external RC circuit that input triangular wave oscillation signal, through a controlled oscillator, current amplification, the output drive capability with a strong square wave pulse.
When the sampling resistor Rs monitoring to reduce the half of lamp load, the corresponding voltage comparator action, causing changes in the oscillation frequency doubles.
When the supply voltage produces a transient pulse (±100V), the protection circuit automatically turns on shunting and clamping limit, to interference protection purposes.
The relay drive current output of the circuit is 120-200mA.