EV24830-L-00A
Buck- Boost Mode White LED Driver
8V – 24V, Programmable Frequency
EV24830-L-00A Rev.1.1 www.MonolithicPower.com 1
1/6/2016 MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited.
© 2016 MPS. All Rights Reserved.
The Future of Analog IC Technology
DESCRIPTION
The MP24830 is a 90V, white LED driver
suitable for inverting step-up/down applications.
It supports a wide input range with excellent
load and line regulation. Its programmable
current limit provides customized applications
with wide power range. Current mode operation
provides fast transient response and eases loop
stabilization. Fault condition protection includes
thermal shutdown, cycle-by-cycle peak current
limiting, open strings protection and output
short circuit protection.
The MP24830 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
ELECTRICAL SPECIFICATION
Parameter Symbol Value Units
Input Voltage VIN 8 To
(V
IN
+V
OUT
)<50
V
Enable Voltage VEN 5 V
LED Current ILED 1 A
Switching Frequency FS 200 kHz
Output Voltage
Protection
V
OVP
30 V
FEATURES
Programmable Maximum Output Current
Unique Operation (Buck-Boost Mode)
Wide 8V to 24V Operating Input Range
Adjustable Switching Frequency
Analog and PWM Dimming
0.2V Reference Voltage
5μA 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 QFN14
APPLICATIONS
General LED Illuminations
Automotive LED Lighting
TV Backlighting System
LCD Backlight Panels
Handheld Computers
All MPS parts are lead-free, halogen 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 of Monolithic Power Systems, Inc.
ADAM (Analog Digital Adaptive Modulation) and AAM (Advanced
Asynchronous Mode) are trademarks of Monolithic Power Systems, Inc.
EV24830- L-00A EVALUATION BOARD
(L x W x H) 95mm x 21mm x 15mm
Board Number MPS IC Number
EV24830-L-00A MP24830HL
LED STRING VOLTAGE ( V )
Efficiency vs. LED
String Voltage
I
LED
=1A
80
84
88
92
96
100
10 15 20 25 30 35 40
V
IN
=20V
V
IN
=40V
