MP4031 Datasheet PDF - MPS

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MP4031
MPS

Part Number MP4031
Description Primary-Side-Controlled Offline LED Controller
Page 20 Pages


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The Future of Analog IC Technology
MP4031
TRIAC and Analog Dimmable,
Primary-Side–Controlled
Offline LED Controller with Active PFC
DESCRIPTION
The MP4031 is a TRIAC and analog dimmable,
primary-side–controlled, offline LED lighting
controller with active PFC. It can output an
accurate LED current for an isolated lighting
application with a single-stage converter. The
proprietary real-current–control method can
accurately control the LED current using primary-
side information. It can significantly simplify LED
lighting system design by eliminating secondary-
side feedback components and the optocoupler.
The MP4031 implements power-factor correction
and works in boundary-conduction mode to
reduce MOSFET switching losses.
The MP4031 has an integrated charging circuit at
the supply pin for fast start-up without a
perceptible delay.
The proprietary dimming control expands the
TRIAC-based dimming range.
The special current sense structure can
implement analog dimming.
The MP4031 has multiple protections that greatly
enhance system reliability and safety, including
over-voltage protection, overload protection,
supply-pin under-voltage lockout, and over-
temperature protection.
All fault protections feature auto-restart.
The MP4031 is available in an 8-pin SOIC
package.
FEATURES
Primary-Side-Control without Secondary-Side
Feedback
Internal Charging Circuit at the Supply Pin for
Fast Start-Up
Accurate Line Regulation
High Power Factor
Operates in Boundary Conduction Mode
Flicker-Free, Phase-Controlled TRIAC
Dimming with Expanded Dimming Range.
Analog-Dimming Compatible
Cycle-by-Cycle Current Limit
Over-Voltage Protection
Over-Load Protection
Over-Temperature Protection
Available in an 8-Pin SOIC Package
APPLICATIONS
Solid-State Lighting, including:
o Industrial and Commercial Lighting
o Residential Lighting
All MPS parts are lead-free and adhere to the RoHS directive. For MPS green
status, please visit MPS website under Products, Quality Assurance page.
“MPS” and “The Future of Analog IC Technology” are registered trademarks of
Monolithic Power Systems, Inc.
MP4031 Rev.1.03
www.MonolithicPower.com
9/5/2014
MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited.
© 2014 MPS. All Rights Reserved.
1



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MP4031—PRIMARY-SIDE–CONTROLLED, OFFLINE LED CONTROLLER WITH PFC
TYPICAL APPLICATION
Analog Dimming Application
N:1
EMI
F ilte r
VA _D IM
MP 4031
1
MULT
COMP
ZCD
VCC
GND
D
CS /DIM
S
Analog with Triac Dimming Application
MP4031 Rev.1.03
www.MonolithicPower.com
9/5/2014
MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited.
© 2014 MPS. All Rights Reserved.
2



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MP4031—PRIMARY-SIDE–CONTROLLED, OFFLINE LED CONTROLLER WITH PFC
ORDERING INFORMATION
Part Number*
MP4031GS
Package
SOIC8
Top Marking
MP4031
* For Tape & Reel, add suffix –Z (e.g. MP4031GS–Z);
PACKAGE REFERENCE
TOP VIEW
MULT
ZCD
VCC
CS/DIM
1
2
3
4
8 COMP
7 GND
6D
5S
SOIC8
ABSOLUTE MAXIMUM RATINGS (1)
Input Voltage VCC ....................... -0.3V to +30V
Low-Side MOSFET Drain Voltage -0.7V to +30V
ZCD Pin Voltage ............................... -8V to +7V
Other Analog Inputs and Outputs..... -0.3V to 7V
ZCD Pin Current ......................... -5mA to +5mA
Continuous Power Dissipation (TA = +25°C) (2)
SOIC8........................................................1.3W
Junction Temperature.............................. 150°C
Lead Temperature ................................... 260°C
Storage Temperature............... -65°C to +150°C
Recommended Operating Conditions (3)
Supply Voltage VCC ........................ 11V to 27V
Operating Junction Temp (TJ). . -40°C to +125°C
Thermal Resistance (4) θJA θJC
SOIC8 ...................................96 ...... 45 ...°C/W
Notes:
1) Exceeding these ratings may damage the device.
2) The maximum allowable power dissipation is a function of the
maximum junction temperature TJ(MAX), the junction-to-
ambient thermal resistance θJA, and the ambient temperature
TA. The maximum allowable continuous power dissipation at
any ambient temperature is calculated by PD(MAX)=(TJ(MAX)-
TA)/ θJA. Exceeding the maximum allowable power dissipation
will cause excessive die temperature, and the regulator will go
into thermal shutdown. Internal thermal shutdown circuitry
protects the device from permanent damage.
3) The device is not guaranteed to function outside of its
operation conditions.
4) Measured on JESD51-7 4-layer board.
MP4031 Rev.1.03
www.MonolithicPower.com
9/5/2014
MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited.
© 2014 MPS. All Rights Reserved.
3



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MP4031—PRIMARY-SIDE–CONTROLLED, OFFLINE LED CONTROLLER WITH PFC
ELECTRICAL CHARACTERISTICS
TA = +25°C, unless otherwise noted.
Parameter
Symbol Condition
Supply Voltage
Operating Range
VCC Upper Level: Internal
Charging Circuit Stops and IC
Turns On
VCC
VCCH
After turn on
VCC Lower Level: Internal
Charging Circuit Trigger
VCCL
Vcc falling, No fault
VCC Re-charge/IC Turn-Off
Level in Fault Condition
VCCEN Vcc falling, Fault occurs
Supply Current
VCC Charging Current from D
Quiescent Current
Quiescent Current at Fault
Operating Current
Multiplier
Linear Operation Range
Gain
TRIAC Dimming Off Detection
Threshold
TRIAC Dimming On Detection
Threshold
ID charge
Iq
Iq_fault
Icc
VD=16V, VCC=5V
No switching, VCC=15V
Fault condition, IC latch,
VCC=15V
fs =70kHz, VCC=15V
VMULT
K(5)
VMUL_off
VMUL_on
VCOMP from 1.9V to 4.9V
VCOMP=2V, VMULT=0.5V
VCOMP=2V, VMULT=1.5V
VCOMP=2V, VMULT=3V
TRIAC Dimming Off Line-Cycle
Blanking Ratio
Doff_LEB
Error Amplifier
Reference Voltage
Transconductance
COMP Lower Clamp Voltage
Max. Source Current
Max. Sink Current without
Dimmer
Sink Current at TRIAC Dimming
Off
Over-Load Detect Threshold
VREF
GEA
VCOMPL
ICOMP+
ICOMP-
Guaranteed by design
Isink_dim
VCOMP_OLP
Min
10
9.5
8.55
6.45
12.5
180
0
0.84
0.9
0.93
0.13
0.32
0.386
1.85
60
4.85
Typ
10
9
7
15
800
220
1
1.06
1.08
1.1
0.15
0.35
25%
0.4
250
1.9
57
-300
70
5
Max
27
10.5
9.45
7.55
17.5
1000
300
2
3
1.26
1.23
1.25
0.17
0.38
0.414
1.95
80
5.15
Units
V
V
V
V
mA
µA
µA
mA
V
1/V
1/V
1/V
V
V
V
µA/V
V
µA
µA
µA
V
MP4031 Rev.1.03
www.MonolithicPower.com
9/5/2014
MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited.
© 2014 MPS. All Rights Reserved.
4



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