MG39131AH MEGAWIN | Alldatasheet
Document overview
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- PDF pages: 11
Technical content
Datasheet sections
- 2 MG39131 Data Sheet MEGAWIN
- 1 Description
- 2 Order Information
- 3 Application Field
- 4 Pin Description
- 4.1 Pin Definition
- 4.2 Pin Configuration
- 5 Block Diagram
- 6 Application Circuit
- 7 Absolute Maximum Rating
- 8 Electrical Characteristics
- 9 Typical Performance Characteristics
- 10 Application information
- 11 Package Dimension
- 12 Revision History
3 Taps, Linear LED driver
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 MG39131 Data Sheet Version: V1.06
MEGAWIN MG39131 Data Sheet 3
Features
l I LED current is programmable with external resistor l Simple application, very few external components l No inductor, electrolytic capacitor l PF>0.9 l THD i < 25% l High LED utilization rate, 75%~90% l Over voltage protection l Temperature compensated l 16 Pin e-TSSOP, e-SOP Package
4 MG39131 Data Sheet MEGAWIN
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 THDi 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
240mA (Max) Dice MG39131AH e-TSSOP16 MG39131AT e-SOP16 MG39131AS
3 Application Field
Incandescent and Fluorescent lamp/tube replacement
MEGAWIN MG39131 Data Sheet 5
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
6 MG39131 Data Sheet MEGAWIN
5 Block Diagram
6 Application Circuit
5.1V UVP OVP RS2 RS4 RS6 BD1 MB6S M O V TVS RZ
MEGAWIN MG39131 Data Sheet 7
7 Absolute Maximum Rating
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 ITAP1- 2 VTAP =10V, TJ = 125 ℃ - - 100 mA TAPx Current ITAP3-4, ITAP5-6 VTAP =10V, TJ = 125 ℃ - - 240 mA VTAPa TAP1-2, Non‐conducting *1 - - 500 V Applied Voltage on TAP VTAPb TAP3-4,TAP5-6, Non‐conducting *1 - - 250 V OTP Protection Temperature TJOTP Junction Temperature - 160 - ℃ OTP Hysteresis Window TJOTPHW - 50 - ℃ Note: *1, Applied voltage is determined by power dissipation.
8 MG39131 Data Sheet MEGAWIN
9 Typical Performance Characteristics
ITAP1&2 Current vs. Vin Voltage / Temperature Current set to around 45mA 0 20 40 60 80 100 (V) (mA) -40Deg. -20Deg 0Deg. 20Deg. 40Deg. 60Deg. 80Deg. 100Deg. 120Deg 130Deg. 140Deg. ITAPS3~6 Current vs. VIN voltage / Temperature Current set to around 95mA 100 105 110 0 20 40 60 80 100 (V) (mA) -40Deg. -20Deg 0Deg. 20Deg. 40Deg. 60Deg. 80Deg. 100Deg. 120Deg 130Deg. 140Deg.
MEGAWIN MG39131 Data Sheet 9 Current Setting If the application circuit is same as below SET1 SET2 SET3 SET4 TAP1 TAP2 TAP3 SET5 SET6 TAP4 TAP5 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 heat- sink 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)
10 MG39131 Data Sheet MEGAWIN
11.1 e-TSSOP16 Package Dimension
MEGAWIN MG39131 Data Sheet 11 11.2 e-SOP16 Package Dimension 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