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PDF MP4031 Data sheet ( Hoja de datos )
| Número de pieza | MP4031 | |
| Descripción | Primary-Side-Controlled Offline LED Controller | |
| Fabricantes | MPS | |
| Logotipo |  |
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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
1 page  
MP4031—PRIMARY-SIDE–CONTROLLED, OFFLINE LED CONTROLLER WITH PFC
ELECTRICAL CHARACTERISTICS (continued)
TA = +25°C, unless otherwise noted.
Parameter
Symbol Condition
Current Sense Comparator
Leading-Edge Blanking Time
Current Sense Upper Clamp
Voltage
Current Sense Lower Clamp
Voltage
τLEB
VS clamp H
VS clamp L
Zero-Current Detector
Zero-Current–Detect Threshold
Zero-Current–Detect Hysteresis
Zero-Current–Detect LEB
Over-Voltage Threshold
OVP Detect LEB
Minimum Off Time
Starter
Start-Timer Period
VZCD T
VZCD Hy
VZCD LEB
VZCD OVP
τOVP LEB
τoff min
Falling Edge
Starts at Gate Turn Off
Starts at Gate Turn Off
τstart
Internal Main MOSFET
Breakdown Voltage
Drain-Source On-Resistor
BVDSS main
RDS(on)_main
VGS=0
ID=100mA
Notes:
5) The multiplier output is given by: Vs=K•VMULT• (VCOMP-1.5)
Min Typ Max Units
360 450 540
2.2 2.3 2.4
0.12 0.15 0.18
ns
V
V
0.32 0.35 0.37
520 550 580
1.8 2.5 3.1
5.2 5.5 5.8
1.5 2 2.5
4.2 5.6
7
V
mV
µs
V
µs
µs
90 115 140 µs
30 V
200 250 300 mΩ
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.
5
5 Page 
MP4031—PRIMARY-SIDE–CONTROLLED, OFFLINE LED CONTROLLER WITH PFC
FUNCTIONAL BLOCK DIAGRAM
TRIAC
Dimmer
EMI
Filter
N: 1
MULT
TRIAC
Phase
Detector
Multiplier
PWM /
PFC
Current control
COMP
Real Current
Calculation
Latch off
and
counting
Protection
OVP
OTP
Gate
Driver
Control
D
S
Gate
control
UVLO /
EN
Power Supply
Current
Sense
Current
LImit
Zero Current
Detection
Zero current detection
VCC
CS/ DIM
GND
ZCD
Figure 1: Functional Block Diagram
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.
11
11 Page | ||
| Páginas | Total 20 Páginas | |
| PDF Descargar | [ Datasheet MP4031.PDF ] | |
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