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MP4000DS Datasheet Preview

MP4000DS Datasheet

White LED Driver Controller

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MP4000
Offline High Brightness
White LED Driver Controller
DESCRIPTION
The MP4000 is a high efficiency step-down
converter designed for driving high brightness
Light Emitting Diodes (LEDs).
The MP4000 drives an external MOSFET in the
floating buck converter structure. The inductor
current is regulated with boundary conduction
mode which features no reverse recovery loss
in the freewheeling diode and soft turn on for
the power MOSFET. Such operation mode can
achieve very high efficiency and at the same
time minimize the inductor value and size. Also,
the LED current can be well regulated by
controlling the MOSFET peak current, which is
sensed through an external resistor. Its low
300mV feedback voltage reduces power loss
and improves efficiency.
The MP4000 can accept an external PWM or a
DC signal for the burst dimming control.
The MP4000 features output short protection,
maximum switching frequency limit, under-
voltage lockout and thermal shut down.
TYPICAL APPLICATION
FEATURES
Constant-current LED Driver
Power MOSFET Zero-Current Turn On
No Freewheeling Diode Reverse Recovery
Issues
High Efficiency and Reliability in Boundary
Mode Operation
Low 0.9mA Operation Current
PWM or DC Input Burst Dimming Control
Hiccup Short Circuit Protection
UVLO, Thermal Shutdown
Maximum Frequency is Limited to 110kHz
Available in SOIC8 Package
APPLICATIONS
DC/DC or AC/DC LED Driver applications
General Illumination
Industrial Lighting
Automotive/ Decorative LED Lighting
For MPS green status, please visit MPS website under Quality Assurance.
“MPS” and The Future of Analog IC Technologyare Registered Trademarks of
Monolithic Power Systems, Inc.
MP4000 Rev. 1.3
www.MonolithicPower.com
1
7/13/2018
MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited.
© 2018 MPS. All Rights Reserved.




MPS

MP4000DS Datasheet Preview

MP4000DS Datasheet

White LED Driver Controller

No Preview Available !

MP4000 OFFLINE HIGH BRIGHTNESS WLED DRIVER CONTROLLER
Part Number
MP4000DS
ORDERING INFORMATION
Package
SOIC8
Top Marking
MP4000
Free Air Temperature (TA)
-40C to +85C
* For Tape & Reel, add suffix Z (e.g. MP4000DSZ).
For RoHS Compliant Packaging, add suffix LF (e.g. MP4000DSLFZ)
PACKAGE REFERENCE
SOIC8
ABSOLUTE MAXIMUM RATINGS (1)
VCC, DRIVE .................................. -0.3V to 11V
DIM, BOS, CS .............................. -0.3V to 6.5V
Continuous Power Dissipation (TA = +25°C) (2)
SOIC8 ........................................................ 1.3W
Junction Temperature .............................. 150C
Lead Temperature ................................... 260C
Storage Temperature............... -55C to +150C
Recommended Operating Conditions (3)
VCC, DRIVE ................................... 8V to 10.5V
Maximum Junction Temp. (TJ) ............. +125C
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
operating conditions.
4) Measured on JESD51-7, 4-layer PCB.
MP4000 Rev. 1.3
www.MonolithicPower.com
2
7/13/2018
MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited.
© 2018 MPS. All Rights Reserved.


Part Number MP4000DS
Description White LED Driver Controller
Maker MPS
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