MP24893 Datasheet | White LED Driver





MP24893 PDF File (Datasheet) Download

Part Number MP24893
Description White LED Driver
Manufacture MPS
Total Page 12 Pages
PDF Download Download MP24893 PDF File

Features: The Future of Analog IC Technology DESCR IPTION The MP24893 is a high efficiency step-down converter designed in contin uous current mode for driving the high brightness LEDs from wide input voltage of 6V to 36V. The MP24893 employs hyst eretic control architecture to regulate a highly accurate LED current, which i s measured through an external high-sid e current-sense resistor. Moreover, thi s control scheme provides optimal circu it stabilization and a very quick respo nse time without loop compensation. Its low 200mV average feedback voltage red uces power loss and improves the conver ter efficiency. The MP24893 implements PWM and analog dimming together through the DIM pin. The MP24893 includes unde r-voltage lockout, thermal overload pro tection to prevent damage in the event of an output overload. The MP24893 is a vailable in TSOT23-5 and QFN6 packages. MP24893 Step Down White LED Driver wi th Wide 6V-to-36V Input Voltage FEATURE S • Internal 36V MOSFET • Wide 6V-to-36V Input Range • 1A Outpu.

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The Future of Analog IC Technology
DESCRIPTION
The MP24893 is a high efficiency step-down
converter designed in continuous current mode
for driving the high brightness LEDs from wide
input voltage of 6V to 36V.
The MP24893 employs hysteretic control
architecture to regulate a highly accurate LED
current, which is measured through an external
high-side current-sense resistor. Moreover, this
control scheme provides optimal circuit
stabilization and a very quick response time
without loop compensation. Its low 200mV
average feedback voltage reduces power loss
and improves the converter efficiency.
The MP24893 implements PWM and analog
dimming together through the DIM pin.
The MP24893 includes under-voltage lockout,
thermal overload protection to prevent damage
in the event of an output overload.
The MP24893 is available in TSOT23-5 and
QFN6 packages.
MP24893
Step Down White LED Driver
with Wide 6V-to-36V Input Voltage
FEATURES
Internal 36V MOSFET
Wide 6V-to-36V Input Range
1A Output Current
High Efficiency
Hysteretic Control
PWM and Analog Dimming
1000:1 PWM Dimming Resolution
UVLO, Thermal Shutdown
Available in TSOT23-5 and QFN6 Packages
APPLICATIONS
Low-Voltage Halogen Replacement
Low-Voltage General Illumination
Automotive/Decorative LED Lighting
Signs/Emergency Lighting
LED Backlighting
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.
TYPICAL APPLICATION
D1
VIN
6V- 36V
CIN
RSENSE
IN RS
MP24893
EN/DIM
GND
SW
L1
MP24893 Rev.1.02
www.MonolithicPower.com
12/7/2012
MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited.
© 2012 MPS. All Rights Reserved.
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