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Title: 1 Author: alex Last modified by: Kim-H Created Date: 7/29/2004 8:55:44 AM Document presentation format: (4:3) – PowerPoint PPT presentation

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1
S8200 Introduction Guidelt Constant Current
Power LED Driver IC gt
  • 2009? 01? 22?
  • Field Application Team

2
S8200 Introduction
Functional Block Diagram
Package Information
ltUnit mmgt
2.8
2.9
ltSOT-25gt
1.1
-. AUK compact size package (2.9 x 2.8 x 1.1
mm) -. Space-saving package contributes to board
miniaturization
Device Features
Calculation (ILED, PD)
1. Large Operation Voltage range ? 3V More
than 600V 2. Driving current Max. 150mA 3.
Linear Regulation Operating Using Band-gap
Voltage ? Very Good Load, Line Regulation and
Thermal Characteristics 4. Only 1 external
components required (RFB) ? Very Simple
Circuit, Area saving, Cost saving ? SOT-25
Package (2.92.8 1.1mm) 6. Low standby current
makes High Efficiency IQ Typ. 2mA 7. Enable
PWM dimming control ? Smart LED Lighting,
Fashionable LED Lighting
1. ILED (LED Drive Current) ? ILED 600/RFB
mA 2. PD (Power Dissipation) ? PD(Total) PD1
PD2 -. PD1 (VDROP VFB) ILED ?
( VDROP VOUT VFB) -. PD2 VCC IQ
3
Application Example (Low Voltage)
PWM Dimming Control
Constant Current Driving
? VS 24V ? PWM Dimming Control
? VS 24V ? ILED 600/RFB mA
- 3 -
4
Application Example (Low Voltage)
VAC Landscape Lighting Application Circuit
- 4 -
5
Application Example (High Voltage)
High Voltage App.(2)
High Voltage App.(1)
? VS More than 400V Enable ? ILED 600/RFB mA
? VS More than 400V Enable ? ILED 600/RFB mA
- 5 -
6
Application Example (High Voltage)
Fashionable Lighting
High Voltage App.(3)
? Improve the device PD Problem
? Fashionable LED Lighting
- 6 -
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