KC24RT Series CONSTANT CURRENT GREAT POWER LED DRIVER FEATURES PRODUCT PROGRAM l SMD Package, simple and convenient l High efficiency up to 96% l Ultra wide range voltage input and output l Constant current mode, great power output l AC-DC, EMC recommended circuit l PWM dimming & Analogue dimming l Remote ON/OFF, Continuous short circuit protection l RoHS and UL Compliance Input Voltage(V) remote ON/OFF control, and SMD package which facilitates the installation. It is widely Short circuit protection The KC24RT is a series of step-down constant current source designed for driving high power LEDs. It features high efficiency, wide input voltage range, high operating temperature, PWM and analogue dimming, used in LED illumination areas such as decorative backlight, in-house light and car light, etc. MORNSUN Science & Technology Co.,Ltd. Address: No. 5, Kehui St. 1, Kehui development center, Science Ave., Guangzhou Science City, Luogang district, Guangzhou,P.R.China. Tel: 86-20-38601850 Fax:86-20-38601272 E-mail: [email protected] Http://www.mornsun-power.com Item Utmost input voltage Recommended input voltage Input filter Output voltage range Input-Output voltage drop Output current range Output current accuracy Output current stability Internal power dissipation Temperature coefficient Efficiency at full load Ripple & Noise (Vp-p) Dimming control Operating temperature range Test condition ≤10 seconds Storage temperature range Maximum case temperature Maximum capacitive Load Operating frequency range MTBF MIL-HDBK-217F(+25°C) Case Material Dimensions Weight PWM Dimming and ON/OFF Control (leave open if not used) ON Remote ON/OFF OFF(shutdown) Remote pin current Vc=5V Vin=24V, Vc <0.6V Quiescent input current (shutdown) PWM frequency 1000 μF 370 420 kHz 2,000,000 Hours Epoxy Resin (UL94-V0) 23.86*18.10*8.00 mm 6 g

INPUT VS OUTPUT Input voltage (VDC) 48 Output voltage range(VDC) 3.3-36.0 Output constant current (mA) 300 Output voltage range(VDC) 3.3-36.0 Output constant current (mA) TYPICAL APPLICATION CIRCUITS (Analogue D im) Series Application (Figure 2) Parallel-series Application If it is necessary to protect LED in actual application, you could connect a PTC to the input of every channel or all channels, as shown in Figure 2. Note: The negative output terminal can’t connect GND, or the module may be damaged. DIGITAL DIMMING CONTROL PWM Digital Control Signal PWM Digital Control Signal PWM Digital Control...

ANALOGUE DIMMING CONTROL AND APPLICATION EXAMPLE 16 KC24RT-XXX Analogue Input Voltage Output Current Analogue dimming circuit (Figure 4) Analogue input voltage VS output (P W M Dim /O N /O FF) (Figure 5) EMI/RFI conducted EN55022 recommended circuit LCM (Figure 6) EMI/EMC recommended circuit Note: 1. DIM pin is the module’s PWM dimming pin as shown in Figure 6. 2. While adding circuit ②,it may extend the PWM dimming output reaction time. EMI/EMC standard： Recommended parameter： Power port ±4KV Add external circuit ② ±1KV Add external circuit ① ±1KV Add external circuit ① 680Ω 0805(can replaced...

AC INPUT RECOMMENDED CIRCUIT (Figure 7) AC input recommended circuit TYPICAL TEMPERATURE CURVE RECOMMENDED REFLOW SOLDERING PROFILE Temperature Derating Graph 250 Time (sec. ) Remark: The curve applies only to the hot air reflow soldering. Output voltage(V) The copyright and authority for the interpretation of the products are reserved by MORNSUN Specifications subject to change without notice. KC24RT -XXX 2012.02.26-A/4 Page 4 of 5

MECHANICAL DIMENSIONS RECOMMENDED FOOTPRINT DETAILS NCNo Connection TUBE PACKAGING DIMENSIONS REEL PACKAGING DIMENSIONS Unit: mm[inch] Outer carton(L): L*W*H=600*215*220mm,2 inner cartons(L); Outer carton(L): L*W*H = 600*215*325mm,3 inner cartons(L). Unit: mm[inch] Per reel of packing quantity: 200pcs;