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| KC24AH Series PWM DIM CONSTANT CURRENT OUTPUT LED DRIVER multi-country patent protection RoHS FEATURES High efficiency up to 95% Constant current output Power LED driver Wide input voltage range PWM dimming Remote ON/OFF Short circuit protection PRODUCT PROGRAM Part Number KC24AH-300 KC24AH-350 KC24AH-500 KC24AH-600 KC24AH-700 Input Voltage(V) Normal 24 24 24 24 24 Range 5.5-36 5.5-36 5.5-36 5.5-36 5.5-36 Output Voltage (VDC) 2-32 2-32 2-32 2-32 2-32 Current (mA) 0-300 0-350 0-500 0-600 0-700 Dimming control PWM PWM PWM PWM PWM Efficiency (%,max) 95 95 95 95 95 SPECIFICATIONS APPLICATIONS The KC24AH Series is a step-down constant current source designed for driving high power LEDs. The output currents available are 300mA, 350mA, 500mA, 600mA, 700mA. The KC24AH series is fully featured with very high efficiency, wide input voltage range, high ambient operating temperature,PWM dimming and Remote ON/OFF. Item Input Voltage Recommended input voltage Input filter Output voltage range Output current range Output current accuracy Output current stability Temperature coefficient Efficiency at full load Vin=36V 2 5 5 Test condition absolute maximum 5.5 24 Min. Typ. Max. 40 36 Units VDC Capacitor 32 8 10 0.03 95 Continuous 300mA / 350mA 500mA/ 600mA/ 700mA -40 -40 -55 85 71 125 100 470 MIL-HDBK-217F(+25C) 2,000,000 Plastic (UL94-V0) 22.8*10.2*9.5 3.5 mm g F Hours C VDC See the selection guide ,while Vin-Vout>1.5-4V Vin=24V, 5 LEDS Vin=24V, 1LED to 5 LEDS -40 C to+71 C ambient % %/C % MODEL SELECTION KC24AH-350 O u tp u t C u rr e n t P a c k a g e S ty l e In p u t Vo l ta g e P r o d u c t S e r ie s Short circuit protection Operating temperature range Storage temperature range Maximum case temperature Maximum capacitive Load MTBF Case Material Dimensions MORNSUN Science & Technology co.,Ltd. Address: 2th floor 6th building, Huangzhou Industrial District, Guangzhou, China Tel: 86-20-38601850 Fax:86-20-38601272 Http://www.mornsun-power.com Weight PWM Dimming and ON/OFF Control (let it open if not use) Rem ote ON/OFF Rem ote pin current Quiescent input current in Shutdown mode PWM frequency ON OFF(shutdown) Vc=5V Vin=24V, Vc <0.6V Open or 2.8V Specifications subject to change without notice. KC24AH -XXX A/0-2009 Page 1 of 2 DIGITAL DIMMING CONTROL PWM Digital Control Signal 1 0 Output current PWM Digital Control Signal 1 0 Output current(LED appears bright) 1 0 PWM Digital Control Signal 1 0 Output current(LED appears dim) 1 0 This is a PWM type digital dimming, which you can control the output current by adjusting the pulse width of the PWM signal. Io_set=Io_normxD Io_set refres to the wanted output current value. Io_norm refers to the rated output current D refers to the pulse width of the PWM signal For example: we assume the rated output current is 300mA and wanted output current is 150mA, then the pulse width should be 0.5 from the equation above. That is say if we keep the pulse width of PWM signal at 0.5, the output current will be kept at 150mA. It is natural for the driver to generate a audibly noise in dimming process, because the frequency of the control circuit is within human audibly range (20Hz~20KHz). TYPICAL APPLICATION CIRCUITS PWM Dimming control circuit Figure 1 +Vin GND EMI filter circuit Figure 2 1 6 Figure 3 +Vin PT C PT C C1 FILTER2T 1 6 C2 1 6 +Vin KC24AH-XXX 4 3 Last LED KC24AH-XXX 5 1st LED GND KC24AH-XXX 4 3 5 1st LED Last LED 1st LED Last LED GND 5 4 3 1st LED Last LED In actual use, if necessary to protect LED, a PTC of positive temperature coefficient may be connect to the input end of every channel or all channels, as shown in Figure 2. OUTLINE DIMENSIONS & PIN CONNECTIONS MECHANICAL DIMENSIONS 7. 62[0 .300 ] 2. 54[0.100 ] 22 .80 [0.8 98] 17 .78[ 0.70 0] 1 7.78 [0.7 00] 5 (B otto m View) 6 0. 50 [0 .020] 1 6 RECOMMENDED FOOTPRINT 1.00 [ 0.039] 2.5 4 [0 .100 ] 10. 60[0 .417] 17. 20[0.677 ] 10. 20[0 .402 ] 4 3 1 3 4 5 9.50 [0.3 74] (Side Vie w) 2.5 4 [0. 100] 4 .10 [0.1 61] 0 .50 [ 0.02 0] 10. 20[0 .401 ] 9.50[0. 374] TUBE OUTLINE DIMENSIONS 25. 20[0 .99 2] Note: Unit: m m[inch] Pin section tolerances :0.1m m[ 0.039inch] General tolerances: 0.25mm [ 0.010inch] FO O TPR IN T D E TA IL S Fu n cti o n C o m me n ts Vi n ON/OF F / PWM 0. 60[0 .024 ] 11.8 0[0. 465 ] 7.6 2[0. 300 ] Pin 1 3 4 5 6 D C Su p p l y L e a ve o p e n i f n o t u se D o n o t c o n n e c t to -Vo u t L ED C a th o d e c o n n e cti o n L ED An o d e co n n e c ti o n G ND - Vo u t + Vo u t Note: Unit: m m[inch] General tolerances :0.5m m[ 0.020inch] L=530m m[20.866inch] L=220m m[8.661inch] Tube Quantity: 50pcs Tube Quantity: 20pcs Note: 1. All specifications measured at Ta=25C, humidity<75%, nominal input voltage and rated output load unless otherwise specified. 2. In this datasheet, all the test methods of indications are based on corporate standards. The copyright and authority for the interpretation of the products are reserved by Mornsun Specifications subject to change without notice. KC24AH -XXX A/0-2009 Page 2 of 2 |
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