White LED Cup Light Controller
Features
˙Precision reference voltage: 0.5V (±2%) ˙Wide operation input voltage: 3.0V ~ 18V ˙High output loading current: typ. 2.0A ˙Fixed PWM frequency: typ. 360KHz ˙Programmable soft-start ˙Thermal shutdown and short circuit protection ˙Compensation and ON/OFF control ˙Package: SOP8
Pb
General Description
The MR163, a 1-chip composed of high current MOS with a fixed PWM oscillator and an error amplifier with a 0.5V precision voltage reference for LED current feedback and driving capaciblity, applied to offer space and low cost in many applications such as the DC/DC bcuk converter and serial white LEDs cup light controller and driver.
Typical Application Circuit
Vin 1 2 4
I C1 Vcc SS FB LX2 LX1 IN8 7 3
L1
Vout D1 White LED
MR163
GND1 GND2
D2 10uH SK23
+
5
6
C3 22uF C2 0.1
C1 0.1
R1 1
High-Brightness White LED Cup Application Example
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MR163 Functional Block Diagram
MARK VIEW
PIN DESCRIPTION
NAME STATUS VCC P I I I P DESCRIPTION IC Power Supply Soft-Start / SCP Control Input Negative Feedback Input Compensation Input (On/Off) IC Ground
LX1 LX2 GND2 GND1
MR163 A3472L
VCC SS FB IN-
SS INFB GND1 GND2 LX1 LX2
O
MOS Switching Output
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IC Date Code Distinguish
MR163
A3472L
Year Week Lot No. Pb free
Logo: Hawyang logo Product name: MR163 (for example) D/C: A3472 A – year 2001, B – year 2002, C – year 2003 34 – week 72 – lot no. last 2 code
Order Information
Part Number
MR163DLF MR163DLF(R)
Operating Temperature
-20℃∼85℃ -20℃∼85℃
Package
SOP8 SOP8
Description
Tube Tape & Reel
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Absolute Maximum Ratings
Symbol
VCC VFB VO IO Tj SOP package
Parameter
Supply Voltage Analog Input Voltage LX Output Voltage Output Current Maximum Junction Temperature Thermal Resistance Junction to Ambient Power Dissipation
Rating
+20 V -0.3 V∼+1.2V +30 V 3A 150℃ 175℃/W
SOP8 package
Ta=25℃ Ta=70℃
650mW 550mW -20℃∼85℃ -65℃∼150℃ +260℃
TOPR TSTG soldering, 10 sec
Operating Temperature Range Storage Temperature Range Lead Temperature
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Electrical Characteristics
Electrical characteristics over recommended operating temperature range,VCC=6V,unless otherwise noted Reference Section PARAMETER
Output voltage Input regulation
SYMBOL TEST CONDITIONS MIN
VREF △VREF FB is connected to INVCC=3.6 V to 20 V 0.49 -
TYP
0.5 2.0 1 1
MAX
0.51 13 2 2
UNIT
V mV %
TA=-20℃ to 25℃ Output voltage change △VREF /VREF with temperature TA= 25℃ to 85℃ †All typical values are at TA=25℃.
Soft-Start (S.S.) Section PARAMETER
Source Current Threshold Voltage
SYMBOL TEST CONDITIONS MIN
ISS VSST VSS=0V -7 0.9
TYP
-12 1.0
MAX
-17 1.1
UNIT
µA V
†All typical values are at TA=25℃.
Short Circuit Protection Section PARAMETER
Source Current Threshold Voltage ON/OFF time ratio
SYMBOL TEST CONDITIONS MIN
ISCP VSCPT r VSCP = 0V VFB > 450mV VFB = 0V -7 1.0 -
TYP
-12 1.15 1/20
MAX
-17 1.2 -
UNIT
µA V -
†All typical values are at TA=25℃.
Thermal Shutdown Section PARAMETER
TSD temperature
SYMBOL TEST CONDITIONS MIN
TSD -
TYP
145
MAX
-
UNIT
℃
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Electrical Characteristics (Cont.)
Error Amplifier Section PARAMETER
Input Bias Current Open Loop Gain Frequency Bandwidth FB Swing Voltage Positive Negative
SYMBOL TEST CONDITIONS MIN
IB AVO FT VOH VOL ISO ISI AVO = 0dB VIN- = 0.3V VIN- = 0.7V VFB = 500mV -30 30 -1.0 0.75
TYP
-0.2 40 6 0.87 0.05 -45 45
MAX
1.0 0.9 0.2
UNIT
µA dB MHz V
FB Source Current FB Sink Current
µA
†All typical values are at TA=25℃.
Idle Period Adjustment Section PARAMETER
Maximum Duty Cycle
SYMBOL TEST CONDITIONS MIN
TDUTY VIN- = 0.2V -
TYP
90
MAX
-
UNIT
%
Total Device Section PARAMETER
Average Supply Current
SYMBOL TEST CONDITIONS MIN
IAV -
TYP
3
MAX
5
UNIT
mA
Output Power-MOS Section PARAMETER
Breakdown Voltage Source Current On Resistance Leakage Current
SYMBOL TEST CONDITIONS MIN
VDSS IDS RDS(ON) IDS(OFF) VFB = 0.1V VCC = 5.0V, VIN- = 0V VCC = 10.0V, VIN- = 0V -
TYP
-20 -2 70 42 5
MAX
150 90
UNIT
V A mΩ µA
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Typical Characteristics Curve
Fig.1
Fig.2
Fig.3
Fig.4
Fig.5
Fig.6
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Detailed Description
This is a simple application circuit for a 5W Whit light LED Application example. The MR163 built-in power-on soft-start function, the time of soft-start is adjusted by C2 capacitor, R1 is current senese for LED, when the sense current time the R1 would generate a sense feedback voltage to IC IN- terminal, IC should turn off LX1 and LX2 and keep L1 energy transfer to Vout and hold the LED lighting until and sense current isn’t enough. C3 and C4 are the capacitors and they keep the supply and Vout voltage smoothly. It is a few external parts using and reduced PCB space very suitable for a tiny LED light system environment.
Vin 1 2 4 I C1 Vcc SS FB LX2 LX1 IN8 7 3 R1 1 D2 10uH SK23 D1 L1 Vout
MR163
GND1 GND2
White LED C4
+
5 C2 0.1 C1 0.1
Fig. 7 MR163 Application Circuits
6
C3 22uF
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Package outline SOP 8
0.008typ.
0.16typ
0.050typ
0.015X45 θ° L
E D A
0.004max
NOTE: 1.JEDEC OUTLINE:MS-012 AA 1. DIMENSIONS “D” DOES NOT INCLUDE MOLD FLASH,PROTRUSIONS OR GATE BURRS.MOLD FLASH,PROTRUSIONS AND GATE BURRS SHALL NOT EXCEED .15mm (.0.06in) PER SIDE
2. DIMENSIONS “E” DOES NOT INCLUDE INTER-LEAD FLASH,OR PROTRUSIONS. INTER-LEAD
FLASH AND PROTRUSIONS SHALL NOT EXCEED .25mm (.0.10in) PER SIDE. SYMBOLS A A1 D E H L θ° MIN 0.053 0.004 0.189 0.150 0.228 0.016 0 MAX 0.069 0.010 0.196 0.157 0.244 0.050 8
A1
H
SEATING PLANE
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Packing Specifications Box
TUBE INSIDE BOX AND CARTON
TAPE & REEL INSIDE BOX AND CARTON
Packing Quantity Specifications
100 EA / TUBE 100 TUBES / INSIDE BOX 4 INSIDE BOXES / CARTON 2500 EA / REEL 4 INSIDE BOXES / CARTON
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Label Specifications
Hawyang Semiconductor Corp.,
Product: MR163DLF(R) Lot No.: xxxxxxxx D/C: A3472 Q’ty: 2,500
MSL 3
Pb
Carrier Tape Dimensions
APPLICATION SOP8 W P 8.0±0.1 E 1.75±0.1 F 5.5±0.1 D 1.55±0.1 D1 1.5+0.25
APPLICATION SOP8
P0 4.0±0.1
P1 2.0±0.1
A0 6.4±0.1
B0 5.20±0.1
K0 2.1±0.10
t 0.30±0.013
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C over Tape Dimensions
CARRIER WIDTH COVER TAPE WIDTH 12 9.3 16 13.3 24 21.3
(mm)
Reel Dimensions
APPLICATION
MATERIAL PLASTIC
A
B
C 12.75+0. 15
D
T1 12.4+0. 2
T2 2.0+0.2
SOP8
REEL (WHILE)
330±0.1
62±1.5
2+0.6
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