EVQ2483-S-00A
55V, Programmable Frequency
White LED Driver Evaluation Board
AEC-Q100 Qualified
EVQ2483-S-00A Rev.1.0 www.MonolithicPower.com 1
5/17/2012 MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited.
© 2015 MPS. All Rights Reserved.
The Future of Analog IC Technology
DESCRIPTION
The MPQ2483 is a 55V, white LED driver
suitable for either step-down or inverting
step-up/down applications. It achieves 2.5A
peak current over a wide input supply range
with excellent load and line regulation. Current
mode operation provides fast transient
response and eases loop stabilization. Fault
condition protection includes thermal shutdown,
cycle-by-cycle peak current limiting, input over
voltage protection, open strings protection and
output short circuit protection.
The MPQ2483 incorporates both DC and PWM
dimming onto a single control pin. The separate
input reference ground pin allows for direct
enable and/or dimming control for a positive to
negative power conversion.
The MPQ2483 is package in SO-14.
MPQ2483-S DEMO BOARDS
Board number
Operating
Mode
Input
(V)
LED#
ILED
(mA)
EVQ2483-S-00A Buck-boost 12 1-4 700
FEATURES
Unique Step-up/down Operation (Buck-
Boost Mode)
Wide 4.5V to 55V Operating Input Range for
Step-Down Applications (Buck Mode)
0.28 Internal Power MOSFET Switch
Adjustable Switching Frequency
Analog and PWM Dimming
0.198V Reference Voltage
5A Shutdown Mode
No minimum LED required
Stable with Low ESR Output Ceramic
Capacitors
Cycle-by-Cycle Over Current Protection
Thermal Shutdown Protection
Open Strings Protection
Output Short Circuit Protection
Available in 14-Pin SO14 Package
APPLICATIONS
General LED Illuminations
LCD Backlight Panels
Automotive Lighting
All MPS parts are lead-free, halogen free, and adhere to the RoHS directive.
For MPS green status, please visit MPS website under Qualit
Assurance. “MPS” and “The Future of Analog IC Technology” are Registered
Trademarks of Monolithic Power Systems, Inc.
EVQ2483-S-00A EVALUATION BOARD
(L x W x H) 5cm x 4.5cm x 0.7cm
Board Number MPS IC Number
EVQ2483-S-00A MPQ2483DS