KC24AH Series PWM DIM CONSTANT CURRENT OUTPUT LED DRIVER multi-country patent protection RoHS FEATURES PRODUCT PROGRAM ● High efficiency up to 95% ● Constant current output ● Power LED driver ● Wide input voltage range ● PWM dimming ● Remote ON/OFF ● Short circuit protection Input Voltage(V) Part Number Normal KC24AH-300 KC24AH-350 Output Dimming control Efficiency (%,max) 0-300 PWM 95 0-350 PWM 95 2-32 0-500 PWM 95 2-32 0-600 PWM 95 2-32 0-700 PWM 95 Range Voltage (VDC) Current (mA) 24 5.5-36 2-32 24 5.5-36 2-32 KC24AH-500 24 5.5-36 KC24AH-600 24 5.5-36 KC24AH-700 24 5.5-36 SPECIFICATIONS APPLICATIONS The KC24AH Series is a step-down constant Item Test condition Input Voltage absolute maximum Min. Typ. Max. 40 current source designed for driving high power Recommended input voltage LEDs. The output currents available are 300mA, Input filter 350mA, 500mA, 600mA, 700mA. The KC24AH Output voltage range Vin=36V series is fully featured with very high efficiency, Output current range See the selection guide ,while Vin-Vout>1.5-4V wide input voltage range, high ambient operating temperature,PWM dimming and Remote ON/OFF. 5.5 24 KC24AH-350 Capacitor 2 32 Output current accuracy Vin=24V, 5 LEDS ±5 ±8 Output current stability Vin=24V, 1LED to 5 LEDS ±5 ±10 Temperature coefficient -40 °C to+71 °C ambient Short circuit protection Operating temperature range O u tp u t C u rr e n t P a c k a g e S ty l e Storage temperature range In p u t Vo l ta g e P r o d u c t S e r ie s Maximum case temperature %/°C 95 % -40 85 500mA/ 600mA/ 700mA -40 71 -55 125 MIL-HDBK-217F(+25°C) 470 μF 2,000,000 Hours Plastic (UL94-V0) MORNSUN Science & Technology co.,Ltd. Weight Address: 2th floor 6th building, Huangzhou Industrial District, Guangzhou, China Tel: 86-20-38601850 Fax:86-20-38601272 Http://www.mornsun-power.com PWM Dimming and ON/OFF Control (let it open if not use) ON 22.8*10.2*9.5 mm 3.5 g Open or 2.8V<Vc<6V OFF(shutdown) Rem ote pin current Vc=5V Quiescent input current in Shutdown mode Vin=24V, Vc <0.6V The copyright and authority for the interpretation of the products are reserved by Mornsun °C 100 Dimensions PWM frequency % ± 0.03 300mA / 350mA Case Material Rem ote ON/OFF VDC Continuous Maximum capacitive Load MTBF VDC 36 Efficiency at full load MODEL SELECTION Units Vc<0.6V 0.2 1 mA 400 μA 10 KHz Specifications subject to change without notice. KC24AH -XXX A/0-2009 Page 1 of 2 DIGITAL DIMMING CONTROL PWM Digital Control Signal PWM Digital Control Signal PWM Digital Control Signal 1 1 1 0 0 0 Output current Output current(LED appears bright) 1 Output current(LED appears dim) 1 0 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_norm×D 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 EMI filter circuit PWM Dimming control circuit Figure 2 Figure 1 +Vin 1 +Vin 6 1 KC24AH-XXX GND 1st LED GND PT C 5 4 1 6 KC24AH-XXX 5 4 Figure 3 +Vin 6 C1 PT C 1st LED 1st LED FILTER2T 5 GND 4 3 3 Last LED Last LED KC24AH-XXX C2 1st LED 3 Last 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 RECOMMENDED FOOTPRINT 22 .80 [0.8 98] ∅1.00 [ ∅0.039] 1 7.78 [0.7 00] 2.5 4 [0 .100 ] 17 .78[ 0.70 0] 10. 20[0 .402 ] 7. 62[0 .300 ] 2. 54[0.100 ] MECHANICAL DIMENSIONS 5 4 3 1 (B otto m View) 6 1 6 3 5 (Side Vie w) 0. 50 [0 .020] 9.50 [0.3 74] 4 2.5 4 [0. 100] 4 .10 [0.1 61] 0 .50 [ 0.02 0] TUBE OUTLINE DIMENSIONS 9.50[0. 374] 10. 20[0 .401 ] 10. 60[0 .417] 7.6 2[0. 300 ] Note: Unit: m m[inch] Pin section tolerances :±0.1m m[± 0.039inch] General tolerances:± 0.25mm [± 0.010inch] Pin 1 3 4 5 6 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 G ND - Vo u t + Vo u t 0. 60[0 .024 ] D C Su p p l y 17. 20[0.677 ] 25. 20[0 .99 2] 11.8 0[0. 465 ] 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 Note: Unit: m m[inch] General tolerances :±0.5m m[± 0.020inch] 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 L=530m m[20.866inch] L=220m m[8.661inch] Tube Quantity: 50pcs Tube Quantity: 20pcs Note: 1. All specifications measured at Ta=25°C, 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