S8300 KODENSHI | Alldatasheet

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◈ Description The S8300 is an integrated adjustable constant-current source, driving loads up to 600mA. The output current level can be adjusted via an external resistor(R FB). The integrated SHDN input of the S8300P permits LED brightness regulation by pulse width modulation (PWM), with the SHDN input, the LED brightness can be regulated via duty cycle. Also, SHDN low sets the S8300 in sleep mode, the SHDN pin also can be used as an enable input. This discrete integration technology eliminates indi vidual components by combining them into a single package, which results in a significant reduction of both system cost and board space. ◈ Features

  • Supplies stable bias current for LEDs
  • LED drive current adjustable via single external resistor (Max 600mA)
  • Low Cost, Low External Parts Count
  • Halogen-Free Package is Available Package Type Device Name Marking SOP-8 S8300 S8300 Pin No Symbol Description

1 VCC Power Supply

2 SHDN Disable On/Off

3 GND Ground

4 N.C No connection 5 N.C No connection 6 N.C No connection

7 OUTPUT Open Collector Output

8 FB Feedback / 0.2V Reference ◈ Pin Assignment & Description ◈ Ordering Information Package : SOP-8

◈ A b s o l u t e m a x i m u m r a t i n g s [Ta=25℃] Characteristic Symbol Rating Unit Power Supply Voltage V CC(MAX) 25 V Output Voltage V OUT(MAX) 25 V Output Sink Current I OUT(MAX) 600 mA Thermal Resistance Junction-Ambient Rth(j-a)* 156.3 ℃/W Power Dissipation P D* 0.8 W Operating Temperature Range T opr -40 ~ +85 ℃ Storage Temperature Range T stg -55 ~ +125 ℃ * : Mounted on a glass epoxy circuit board of50x50mm Pad dimension of 50mm2 ◈ Recommended operating conditions Rating Characteristic Symbol Min Max Unit Power Supply Voltage V CC 3 24 V Output Voltage V OUT 1.5 Vcc V Output Sink Current I OUT - 500 mA Shut Down Voltage SHDN -0.3 Vcc V ◈ Electrical Characteristics (Ta=25 , unless otherwise noted.)℃ Characteristic Symbol Condition Min. Typ. Max. Unit IQ Maximum I Q V CC=3~24V, Iout=20mA, Vout=open - 8 12 mA Leak Current Ileak Vcc=5V, Vout=24V - 0.1 1 µA Feedback Voltage V FB V CC=5V, Iout=10mA - 200 208 mV Dropout Voltage Vdrop V CC=5V, Iout=500mA - 0.5 1.5 V Line Regulation V △ FB1 V CC=3V~24V, Iout=10mA - 2 10 mV Load Regulation V △ FB2 V CC=5V, Iout=10mA~Iomax - 3 25 mV SHDN Voltage On Vdis on V CC=5V, Iout=10mA, Vout=Vcc 1.5 - - V SHDN Voltage Off Vdis off V CC=5V, Iout=10mA - - 0.5 V SHDN Pin Current Idis Vcc=5V, SHDN=5V 230 430 630 µA Short Circuit Current I SC R FB=0Ω - 1300 - mA Thermal Shutdown T TSD - - 160 - ℃ S8300

◈ Functional block diagram ◈ Design Consideration 1) Calculation for RFB - RFB = 0.2V / ILED 2) Calculation for Vdrop - Vdrop = VCC – VLED 3) Calculation for Power Dissipation on the S8300P D1 = (Vdrop – VFB) x ILED -PD2 = VCC x IQ -PD(total) = PD1 + PD2 4) If does not use an Dimming function, connect SHDN Pin with the ground. 5) When Vcc uses to exceed 25V , Dimming functions the use is impossible. OCP TSD GND FB Out VCC SHDN 0.2V

<APP1. Constant Current LED Driver Circuit> <APP2. PWM Dimming LED Driver Circuit> ◈ Typical Applications <APP3. VAC Landscape Lighting Application Circuit>

<APP4. High V oltage Operation of S8300P (1) > For operation in excess of S8300 specified maximum voltage (VCC & VOUT) of 25V, one way is to connect a sufficient number of LEDs between the power supply voltage and the DC input of the VCC&VOUT such that the voltage seen at pin(VCC & VOUT)is less than 25V. That is to say, use additional LEDs to drop the voltage fed to the S8300 below its maximum rating, in the usual way. Refer to APP4,5 Note that the exact number of diodes required will depend on the supply voltage VCC and output voltage VOUT ,the voltage drops across the particular LEDs being used. (Red, Blue and White LEDs have different forward voltage drop.) Use enough LEDs such that voltage at pin(VCC & VOUT) of S8300 is < 25V ※ Caution : When V S uses to exceed 25V, Dimming functions the use is impossible. <APP5. High V oltage Operation of S8300P (2) > ◈ Typical Applications <APP6. Power Supply Where Separates Operation of S8300P >

RFB=0.4Ω TA=25℃ 5.0 5.5 6.0 6.5 7.0 7.5 8.0 8.5 9.0 9.5 10.0 -60 -40 -20 0 20 40 60 80 100 Vcc=3V Vcc=5V Vcc=24V Io=20mA Vo=Open 450 470 490 510 530 550 570 590 610 630 650 -60 -40 -20 0 20 40 60 80 100 VCC=5V Io=500mA 0.0 1.0 2.0 3.0 4.0 5.0 6.0 7.0 8.0 9.0 10.0 -60 -40 -20 0 20 40 60 80 100 VCC=5V △Iout=490mA 0.5 0.7 0.8 1.0 1.1 1.3 1.4 1.6 1.7 1.9 2.0 -60 -40 -20 0 20 40 60 80 100 △VCC=21V Io=10mA -2.5 -2.0 -1.5 -1.0 -0.5 0.0 0.5 1.0 1.5 2.0 2.5 -60 -40 -20 0 20 40 60 80 100 VCC = 5V Io = 10mA ◈ Electrical Characteristic Curves Fig.1 VFB vs TA Feedbak V oltage Change - VFB [ % ] Ambient Temperature - TA [℃] Fig.2 Line Regulation vs TA Line Regulation- △VFB [mV] Ambient Temperature - TA [℃] Fig.3 Load Regulation vs TA Load Regulation- △VFB [mV] Ambient Temperature - TA [℃] Fig.4 Quiescent Current vs TA Quiescent Current - IQ [mA] Ambient Temperature - TA [℃] Fig.5 Dropout Voltage vs TA Dropout V oltage- VDROP[mV] Ambient Temperature - TA [℃] Fig.6 Output Current vs Supply Voltage Output Current [mA] Supply V oltage - Vcc [V]

0 1 02 03 04 05 06 07 08 09 0 1 0 0 Fre.1kHz Fre.10KHz ◈ Electrical Characteristic Curves Fig.7 Dimming Curve Ch1 : SHDN, 5V/Div Ch2 :VOUT, 5V/Div Ch3 : IOUT, 500mA/Div Fig.8 Short Circuit Current Ch1► Ch2► LED Current ratio [%] SHDN : Duty Ratio(%) Ch3► Fig.9 Power Dissipation vs TA Power Dissipation - PD [mW] Ambient Temperature - TA [℃]

SOP-8 Outline Dimension (mm) ※ Recommend PCB solder land [Unit: mm]

The AUK Corp. products are intended for the use as components in general electronic equipment (Office and co mmunication equipment, m easuring equipment, home appliance, etc.). Please make sure that you consult with us before you use these AUK Corp. products in equipments which require high quality and / or reliability, and in equipments which could have major impact to th e welfare of human life(atomi c energy control, airplane, spaceship, transportation, co mbustion control, all types of safety device, etc.). AUK Corp. cannot accept liability to any damage which may occur in case these AUK Corp. products were used in the mentioned equi pments without prior consultation with AUK Corp.. Specifications mentioned in this publication are subject to change without notice.