MG39131 Data Sheet

MG39131
3 Taps, Linear LED driver
MG39131
Data Sheet
Version: V1.06
This document contains information on a new product under development by Megawin. Megawin reserves the right to change or
discontinue this product without notice.
 Megawin Technology Co., Ltd. 2014 All rights reserved.
2014/07 version 1.06
Contents
1
2
3
4
Description ........................................................................................................ 4
Order Information .............................................................................................. 4
Application Field................................................................................................ 4
Pin Description .................................................................................................. 5
4.1
4.2
5
6
7
8
9
10
11
Pin Definition .................................................................................................................. 5
Pin Configuration............................................................................................................ 5
Block Diagram................................................................................................... 6
Application Circuit ............................................................................................. 6
Absolute Maximum Rating ................................................................................ 7
Electrical Characteristics................................................................................... 7
Typical Performance Characteristics ................................................................ 8
Application information...................................................................................... 9
Package Dimension ........................................................................................ 10
11.1
11.2
e-TSSOP16 Package Dimension ................................................................................. 10
e-SOP16 Package Dimension...................................................................................... 11
12 Revision History .............................................................................................. 11
2
MG39131 Data Sheet
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Features
ILED current is programmable with external resistor
Simple application, very few external components
No inductor, electrolytic capacitor
PF>0.9
THDi < 25%
High LED utilization rate, 75%~90%
Over voltage protection
Temperature compensated
16 Pin e-TSSOP, e-SOP Package
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MG39131 Data Sheet
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1 Description
The MG39131 is a high precision linear LED controller. It is designed to drive a 3‐taps low power LED string
directly form AC line input. Electrolytic capacitor is not required; so long operating life is possible. No EMI filter
and PF correction circuits are needed.
The LED string is configured into 3 segments. With state‐of‐art control scheme, each segment is sequentially
turned on and off by tracking the input sine wave voltage. Voltage applied on IC is minimized when conducting,
providing high efficiency. The AC voltage and line ‐input current could be tuned in phase, so the high PF is
possible. There is no PWM switching control in the chip, also the line‐in current is tracking with the AC input with
three step level, the THD i could be tuned very low. The ILED current is also programmed by external resister to
fulfill various types of power requirement. The maximum supported wattage is 19.5W.
The MG39131 also builds in UVLO control, over temperature and over voltage protection circuit. The device is
available in e-TSSOP16, e-SOP16 package or dice form.
2 Order Information
Current
240mA (Max)
Package Type
Dice
MG39131AH
e-TSSOP16
MG39131AT
e-SOP16
MG39131AS
3 Application Field
Incandescent and Fluorescent lamp/tube replacement
4
MG39131 Data Sheet
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4 Pin Description
4.1 Pin Definition
Pin No.
Pin Name
I/O
Description
1
VTH1
I
LED power down control pin; VTH1<1.2V à Power down
2
GND
G
Ground pin
3
SET1
IO
Current control input for TAP1
4
SET2
IO
Current control input for TAP2
5
SET3
IO
Current control input for TAP3
6
SET4
IO
Current control input for TAP4
7
SET5
IO
Current control input for TAP5
8
SET6
IO
Current control input for TAP6
9
TAP6
O
Current regulator 6 output, connect it to tap of LED string
10
TAP5
O
Current regulator 5 output, connect it to tap of LED string
11
TAP4
O
Current regulator 4 output, connect it to tap of LED string
12
TAP3
O
Current regulator 3 output, connect it to tap of LED string
13
TAP2
O
Current regulator 2 output, connect it to tap of LED string
14
TAP1
O
Current regulator 1 output, connect it to tap of LED string
15
VIN
I
High voltage input pin, connect to rectified AC
16
VTH2
I
LED power down control pin; VTH2>1.2V à Power down
4.2 Pin Configuration
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MG39131 Data Sheet
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5 Block Diagram
6 Application Circuit
M
O
V
RZ
10
BD1
MB6S
TVS
Rin
15K
Rc
Ra
VTH1
Z1
5.1V
Rb
Rc
UVP
VTH2
GND
VIN
SET1
TAP1
SET2
TAP2
SET3
TAP3
SET4
TAP4
SET5
TAP5
SET6
TAP6
OVP
RS2
RS4
RS6
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MG39131 Data Sheet
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7 Absolute Maximum Rating
Parameter
Rating
Unit
VIN Supply Voltage
-0.5 to +530
V
Operating temperature
-40 to +125
°C
Storage temperature
-55 to +155
°C
Note: Operating temperature is strongly related to the power consumption of IC.
8 Electrical Characteristics
Parameter
Symbol
Conditions
Min.
Typ.
Max.
Unit
Input Voltage
VIN
VVIN – VGND
7.5
-
500
V
VIN Start-up Voltage
VSTART
VVIN – VGND
-
6.5
-
V
VIN UVLO Voltage
VUVLO
VVIN – VGND
-
5.5
-
V
Input Current
IIN
All input range
-
400
-
uA
Input Current at UVLO
IUVLO
All input range
-
100
-
uA
SET1~4 Compare Level
VSETa
All input range
-
1.1
-
V
SET5~6 Compare Level
VSETb
All input range
-
1.2
-
V
SET1 ~ SET6 Compare Level
Temperature Coefficient
△VSET/△T
Junction Temperature (TJ):
-40℃ ~ +125℃
-
-0.03
-
%/℃
OVP/UVP Compare Level
VTH1, 2
All input range
-
1.2
-
V
TAPx Current
ITAP1- 2
VTAP =10V, TJ = 125 ℃
-
-
100
mA
ITAP3-4,
ITAP5-6
VTAP =10V, TJ = 125 ℃
-
-
240
mA
VTAPa
TAP1-2, Non‐conducting *1
-
-
500
V
VTAPb
TAP3-4,TAP5-6,
Non‐conducting *1
-
-
250
V
OTP Protection Temperature
TJOTP
Junction Temperature
-
160
-
℃
OTP Hysteresis Window
TJOTPHW
-
50
-
℃
Applied Voltage on TAP
Note: *1, Applied voltage is determined by power dissipation.
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MG39131 Data Sheet
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9 Typical Performance Characteristics
ITAP1&2 Current vs. Vin Voltage / Temperature
Current set to around 45mA
55
50
-40Deg.
-20Deg
0Deg.
20Deg.
40Deg.
60Deg.
80Deg.
100Deg.
120Deg
130Deg.
140Deg.
(mA)
45
40
35
30
25
20
0
20
40
60
80
100
(V)
ITAPS3~6 Current vs. VIN voltage / Temperature
Current set to around 95mA
110
105
-40Deg.
-20Deg
0Deg.
20Deg.
40Deg.
60Deg.
80Deg.
100Deg.
120Deg
130Deg.
140Deg.
100
95
(mA)
90
85
80
75
70
65
60
0
20
40
60
80
100
(V)
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MG39131 Data Sheet
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10 Application information
Current Setting
If the application circuit is same as below
SET1
TAP1
SET2
TAP2
SET3
TAP3
SET4
TAP4
SET5
TAP5
SET6
TAP6
Rset1
Rset2
Rset3
The current setting will be
ITAP5-6 = (1.2V ÷ (RSET3))
ITAP3-4 = (1.1V ÷ (RSET3 + RSET2))
ITAP1-2 = (1.1V ÷ (RSET3 + RSET2 + RSET1))
RSET3 = (1.2V ÷ ITAP5-6)
RSET2 = (1.1V ÷ ITAP3-4) – RSET3
RSET1 = (1.1V ÷ ITAP1-2) – RSET3 – RSET2
The MG39131 can sustain an input voltage level as high as 500V. But users should care the heat dissipation
issue for their applications. For large wattage application, the 131 will consumes 2W~3W power. The IC’s heatsink should be firmly attached to the substrate. Aluminum or Ceramic PCB is recommended.
Package Thermal Resistance
The thermal resistance is around 66°C /W, junction to ambient (no air flow)
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MG39131 Data Sheet
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11 Package Dimension
11.1 e-TSSOP16 Package Dimension
10
MG39131 Data Sheet
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11.2 e-SOP16 Package Dimension
12 Revision History
Rev
Descriptions
Date
V1.01 Initial release.
2013/01/29
V1.02 Modify the package
2013/05/20
V1.03 Modify the TAP current
2013/08/06
V1.04 Rename Model name
2014/02/11
V1.05 Modify VTH1 polarity
2014/05/26
V1.06 Add test data and revise application diagram
2014/07/24
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MG39131 Data Sheet
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