原厂授权代理商 深圳市诚信联科技有限公司 联系人：古小姐 电话：０７５５－８６０９１９６３ １３２４９８２７１７０ ＱＱ ：１１３９１９６８０６ 原厂指定代理商 深圳市诚信联科技有限公司．联系人：古小姐，．０７５５－８６０９１９６３／１３２４９８２７１７０ ＱＱ：１１３９１９６８０６ 2010/07/02 NU510 Medium Power Lighting LED Driver 150mA Single channel LED Driver Features Package Type Up to 150mA single channel constant current regulator Current set by an external resistor 3V ~ 10V wide supply voltage range supports self power structure in lighting application Minimum 0.4V (80mA) dropout voltage Fast current rising and falling -40℃ ~ 85℃ operating temperature SOT 23-6 (pin out compatible with NU501) VDD Mode OPT NU510 Less than ±3% Chip to Chip current skew Less than 2%/V load (or line) regulation 160°C half power / 115°C recovery thermal protect Cascade-able for higher voltage drop applications OE GND REXT MSOP 8 / SOP 8 Product Description NU510 is a medium power linear current regulation component that can be easily used in various LED lighting applications. It is equipped the excellent feature of good load/line regulation capability, minimized chip current skew, stable output current in high power or load voltage fluctuating environment that can be used in wide area of LED lighting source to maintain the uniformity of light intensity . NU510 also can be used in the digital PWM controlled circuit to achieve more precise current adjusting in gray level applications. Terminal Description Pin name A special cascade mode is also provided by NU510. In high power supply voltage and low LED load dropout voltage application, two or more NU510 can be connected in series to share redundant high voltage. With the exclusive voltage sharing technology of NUMEN tech., the extra redundant voltage that exceeds the preset threshold voltage (Viboost) can be shared by next NU510. With the feature of wide power supply range design and ultra low IDD consumption, the NU510 supports the self powered structure in LED lighting applications. In this structure, the NU510 no need to be provided a dedicate power circuit even the system power voltage is much higher than the maximum operation voltage of NU510. The VDD power can be gotten from the proper position in LED series of system. Function VDD Power supply OPT Current sink REXT Current setting Resistor OE Output enable Mode Cascade / Normal mode selection GND Ground Block Diagram Applications General LED lighting Decoration lighting for architecture LED torch / flash light RGB lighting RGB display / indicator -1- Ver.01 Please visit http://www.numen-tech.com for more patent information. th 3F., No. 96, Sec. 1, Jiafong 6 Road, Jhubei City, Hsinchu County 302, Taiwan. TEL: +886-3-658-9936 FAX: +886-3-550-2805 NumEn Tech. NU510 Equivalent Circuits for Inputs Ideal IV characteristic Mode pin = Logic high (default, cascade mode) Mode pin = Logic low (normal mode) Maximum Ratings (T = 25°°C) Characteristic Symbol Rating Unit Supply voltage VDD 0 ~ 12 V Output voltage VOPT -0.2 ~ 20 V Output current IPN 0 ~ 150 mA Power Dissipation (Ta=25°C) Thermal Resistance (On PCB, Ta=25°C) PD RTH(j-a) SOT 236 0.25 MSOP 8 1 SOP 8 1.25 SOT 236 400 MSOP 8 125 SOP 8 100 W °C /W Operating temperature TOPR -40~+85 °C Storage temperature TSTG -55~+150 °C -2- Ver.01 Please visit http://www.numen-tech.com for more patent information. th 3F., No. 96, Sec. 1, Jiafong 6 Road, Jhubei City, Hsinchu County 302, Taiwan. TEL: +886-3-658-9936 FAX: +886-3-550-2805 NumEn Tech. NU510 Electrical Characteristics and Recommended Operating Conditions Characteristic Symbol Supply voltage VDD Room Temp. Supply current IDD - Minimum dropout voltage Min. Typ. Max. Unit 3 - 10 V 50 80 150 uA IS <= 20mA 0.25 0.3 0.4 IS <= 60mA 0.3 0.4 0.5 IS <= 100mA 0.4 0.5 0.6 IS <= 150mA 0.6 0.7 0.8 - - 150 mA Condition VOUT VDD >=3V VOPT = 1V V Output current IOPT Leakage ILeakage VDD > 3V, VOPT = 10V 1 - 5 uA Line regulation %/VDD 12V > VDD > 3V - - ±1 %/V Load regulation %/VP 8V>VOUT>0.4V, Mode = low - - ±1 %/V Thermal regulation %/10℃ VDD = VP = 3V - - ±0.5 Half power temperature Thalf Inormal 2 - 160 - Half power recovery temperature Trecov Iout recover to Inormal - 115 - Current boost voltage Viboost Mode = high 7 8 9 V Current boost Iboost Mode = high 5 6 9 % * IOPT Chip current skew ISkew VDD = VP = 3V - 2.5 4 % Iout ≅ ℃ %/10 ℃ Switching Characteristics (T = 25°°C) Characteristic Symbol Condition Min. Typ. Max. Unit Propagation Delay Time (OE from “L” to “H”) tpLH VDD=4V, VOUT=1V, IOUT=120mA, OE= 0V → 4V 140 200 260 nS Output current rising time (OE from “L” to “H”) tOERise VDD=4V, VOUT=1V, IOUT=120mA, OE= 0V → 4V 30 40 60 nS Propagation Delay Time (OE from “H” to “L”) tpHL VDD=4V, VOUT=1V, IOUT=120mA, OE= 4V → 0V 260 320 380 nS Output current falling time (OE from “H” to “L”) tOEFall VDD=4V, VOUT=1V, IOUT=120mA, OE= 4V → 0V 30 50 80 nS Timing Waveform OE 50% 50% tpLH tpHL 90% 50% 10% VOUT 90% 50% 10% TOERise TOEFall OE timing diagram -3- Ver.01 Please visit http://www.numen-tech.com for more patent information. th 3F., No. 96, Sec. 1, Jiafong 6 Road, Jhubei City, Hsinchu County 302, Taiwan. TEL: +886-3-658-9936 FAX: +886-3-550-2805 NumEn Tech. NU510 Test Circuit +V RLoad VDD Function generator Mode OE VOPT NU501 REXT REXT Output Current Setting The output current of NU510 is set by an external resistor (REXT). The output current can be figured out by following equation. Iout ≅ 0.2V R EXT Thermal protection When junction temperature is more than half power temperature (~160°C), the output current of NU510 will decrease about 50% to lower down the power dissipation on chip. When the half power occurs, there are two conditions can recover the output current to normal. One is the junction temperature lower than recovery temperature (~115°C). The other one is to reset the OE signal from low to high. I/V Curve Normal mode output I/V curve 160.00 140.00 IOUT (mA) 120.00 VDD = 3V 100.00 80.00 60.00 40.00 20.00 0.00 0.1 0.2 0.3 0.4 0.5 0.6 0.8 1 1.2 1.4 1.6 1.8 2 3 4 5 6 7 8 9 10 11 VOUT (V) -4- Ver.01 Please visit http://www.numen-tech.com for more patent information. th 3F., No. 96, Sec. 1, Jiafong 6 Road, Jhubei City, Hsinchu County 302, Taiwan. TEL: +886-3-658-9936 FAX: +886-3-550-2805 NumEn Tech. NU510 Cascade mode output I/V curve 25 20 IOUT (mA) 15 10 VDD = 3V 5 0 0.1 0.3 0.5 0.8 1.2 1.6 2 2.4 2.8 3.2 3.6 4 6 7.2 7.6 8 8.4 8.8 9.2 9.6 10 VOUT (V) Typical Application Circuit 24v General lighting Cascade application PWM grey level application VLED Two or more NU510 in series can absorb higher voltage variation in lighting system. Each NU510 can share 8 volts redundant. The total voltage variation range that system can work is calculated by following equation. VLED Vf (total) VLED(max)≒8 * N(NU510) – Vf(total) Where VLED(max) is the system power voltage, N(NU510) is the number of NU510 and Vf(total) is the total forward voltage of all LEDs. -5- t Ver.01 Please visit http://www.numen-tech.com for more patent information. th 3F., No. 96, Sec. 1, Jiafong 6 Road, Jhubei City, Hsinchu County 302, Taiwan. TEL: +886-3-658-9936 FAX: +886-3-550-2805 NumEn Tech. NU510 Package Dimensions SOT23-6 -6- Ver.01 Please visit http://www.numen-tech.com for more patent information. th 3F., No. 96, Sec. 1, Jiafong 6 Road, Jhubei City, Hsinchu County 302, Taiwan. TEL: +886-3-658-9936 FAX: +886-3-550-2805 NumEn Tech. NU510 MSOP-8 -7- Ver.01 Please visit http://www.numen-tech.com for more patent information. th 3F., No. 96, Sec. 1, Jiafong 6 Road, Jhubei City, Hsinchu County 302, Taiwan. TEL: +886-3-658-9936 FAX: +886-3-550-2805 NumEn Tech. NU510 SOP-8 -8- Ver.01 Please visit http://www.numen-tech.com for more patent information. th 3F., No. 96, Sec. 1, Jiafong 6 Road, Jhubei City, Hsinchu County 302, Taiwan. TEL: +886-3-658-9936 FAX: +886-3-550-2805 NumEn Tech. NU510 Restrictions on product use NUMEN Tech. reserves the right to update these specifications in the future. The information contained herein is subject to change without notice. NUMEN Technology will continually working to improve the quality and reliability of its products. Nevertheless, semiconductor device in general can malfunction or fail due to their inherent electrical sensitivity and vulnerability to physical stress. It is the responsibility of the buyer, when utilizing NUMEN products, to comply with the standards of safety in making a safe design for the entire system, and to avoid situations in which a malfunction or failure of such NUMEN products could cause loss of human life, bodily injury or damage to property. In developing your designs, please ensure that NUMEN products are used within specified operating ranges as set forth in the most recent NUMEN products specifications. The NUMEN products listed in this document are intended for usage in general electronics applications (lighting system, personal equipment, office equipment, measuring equipment, industrial robotics, domestic appliances, etc.). These NUMEN products are neither intended nor warranted for usage in equipment that requires extraordinarily high quality and/or reliability or a malfunction or failure of which may cause loss of human life or bodily injury (“Unintended Usage”). Unintended Usage include atomic energy control instruments, airplane or spaceship instruments, transportation instruments, traffic signal instruments, combustion control instruments, medical instruments, all types of safety devices, etc.. Unintended Usage of NUMEN products listed in this document shall be made at the customer’s own risk. -9- Ver.01 Please visit http://www.numen-tech.com for more patent information. th 3F., No. 96, Sec. 1, Jiafong 6 Road, Jhubei City, Hsinchu County 302, Taiwan. TEL: +886-3-658-9936 FAX: +886-3-550-2805