t hab0022_ thl350 4_rev .1.00_e _ brie f 1 copyright?2012 thine electronics, inc. thine electronics, inc. thl3504 24-channel constant current led driver with lvds interface descriptions the thl3504 is an led driver with 24 channel constant current sink outputs. the constant current values for three output groups are determ ined by external resistors. the embedded oscillat or and pwm controller individually generates 256-step brightness set by the dedicated registers for each channel. the serial interface of 2-pa ir lvds lines (clock and data) features high-level noise tolerance, high-speed, and long-distance transmission. the lvds allowing cascaded and multidrop connection offers the maximum flexibility for designers to place and connect led drivers. the simple and one-way co mmunication protocol is easily-controlled and requires less cpu resources. applications amusement led backlight led display digital signage illumination features < driver part > - constant current output: 24 channels - output sink current: up to 40ma/ch - output voltage: up to 40v - individual brightness control: 256 steps - group brightness control: 64 steps - output disable/enable < serial interface part > - 2-pair serial lvds input or 3-wire serial cmos input up to 10mbps - bridge function converting 3-wire serial cmos input to 2-pair serial lvds output - repeater function of 2-pair serial lvds input / output with waveform a nd timing correction - device address selection up to 62 addresses - general call to all devices protection circuits uvlo, short circuit pr otection, thermal shutdown supply voltage: 3.0~5.5v package: qfn 48-pin exposed pad input logic registers constant address data pwm controller a0~a5 scl_outn scl_outp sda_outn sda_outp scl_inn scl_inp sda_inn sda_inp oscillator mode csn si sck scl sda block diagram scl sda rext0 rext1 rext2 current generator current sink 3-wire to 2-wire re-timing conversion lvds input lvds output out0~out7 out8~out15 out16~out23 current sink current sink
t hab0022_ thl350 4_rev .1.00_e _ brief 2 copyright?2012 thine electronics, inc. thine electronics, inc. notices and requests 1. the product specifications described in this material are subject to change without prior notice. 2. the circuit diagrams described in this material are examples of the application which may not always apply to the customer?s design. we are not responsible for possible errors and omissions in this material. please note if errors or omissions should be found in this material, we may not be able to correct them immediately. 3. this material contains our copy right, know-how or other proprietary. copying or disclosing to third parties the contents of this material without our prior permission is prohibited. 4. note that if infringement of any third party's indus trial owners hip should occur by us ing this product, we will be exempted from the responsibility unless it directly relates to the production process or functions of the product. 5. this product is presumed to be used for general electric equipment, not for the applications which require very high reliability (including medical equipment directly concerning people's life, aerospace equipment, or nuclear control equipment). also, when using this product for the equipment concerned with the control and safety of the transportation means, the traffic signal equipment, or various types of safety equipment, please do it after applying appropriate measures to the product. 6. despite our utmost efforts to improve the quality and reliability of the product, faults will occur with a certain small probability, which is inevitable to a semi-conductor product. therefore, you are encouraged to have sufficiently redundant or error preventive design applied to the use of the product so as not to have our product cause any social or public damage. 7. please note that this product is not designed to be radiation-proof. 8. customers are asked, if required, to judge by themselves if this product falls under the category of strategic goods under the foreign exchange and foreign trade control law. thine electronics, inc. e-mail: sales@thine.co.jp
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