EV24895-J-00A
Step-Down White LED Driver
Evaluation Board
EV24895-J-00A Rev.1.0 www.MonolithicPower.com 1
8/7/2014 MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited.
© 2014 MPS. All Rights Reserved.
The Future of Analog IC Technology
DESCRIPTION
The EV24895-J-00A is an evaluation board for
the MP24895GJ, a step-down converter
designed in hysteretic current control mode for
driving the high brightness LEDs from wide
input voltage of 9V to 30V.
The MP24895 employs hysteretic control
architecture to regulate LED current. Moreover,
this control scheme provides optimal circuit
stabilization and a very quick response time
without loop compensation. The highly accurate
LED current is measured through an external
high-side current-sense resistor. Its low 100mV
average feedback voltage reduces power loss
and improves the efficiency.
The MP24895 implements PWM and analog
dimming together on the EN/DIM pin. The
MP24895 includes under-voltage lockout, and
thermal overload protection to prevent damage
in the event of an output overload.
ELECTRICAL SPECIFICATIONS
Paramete
Symbol
alue Units
Input Voltage V
IN
9 to 30 V
Output Voltage V
OUT
<V
IN
-3 V
LED Current I
LED
750 mA
FEATURES
• Internal 36V MOSFET
• Wide 9V to 30V Input Range
• 750mA Output LED Current
• High Efficiency
• Hysteretic Control
• PWM and Analog Dimming
• 1000:1 PWM Dimming Resolution
• UVLO
• Thermal Shutdown
APPLICATIONS
• Low-Voltage Halogen Replacement
• Low-Voltage General Illumination
• Automotive/Decorative LED Lighting
• Signs/Emergency Lighting
• LED Backlighting
ll MPS parts are lead-free and adhere to the RoHS directive. For MPS green
status, please visit MPS website under Quality Assurance.
“MPS” and “The Future of Analog IC Technology” are Registered Trademarks o
Monolithic Power Systems, Inc.
EV24895-J-00A EVALUATION BOARD
(L x W x H) 20mm x 14mm x 11mm
Board Numbe
MPS IC Numbe
EV24895-J-00A MP24895GJ
