MP24833-A Datasheet: White LED Driver





MP24833-A White LED Driver Datasheet

Part Number MP24833-A
Description White LED Driver
Manufacture MPS
Total Page 14 Pages
PDF Download Download MP24833-A Datasheet PDF

Features: The Future of Analog IC Technology DESCR IPTION The MP24833-A is a 55V, 3A, whit e LED driver suitable for step-down, in verting step-up/stepdown, and step-up a pplications. The MP24833A achieves 3A o f output current with excellent load an d line regulation over a wide input sup ply range. Current mode operation provi des a fast transient response and eases loop stabilization. Full protection fe atures include thermal shutdown, cycle- by-cycle peak current limiting, open-st ring protection, and output short-circu it protection (SCP). The MP24833-A inco rporates both DC and PWM dimming into a single control pin. The separate input reference ground pin allows for direct enable and/or dimming control for a po sitive-to-negative power conversion. Th e MP24833-A requires a minimal number o f readily available, standard, external components and is available in a SOIC- 8 EP package. MP24833-A 55V, 3A, White LED Driver FEATURES  3A Maximum Out put Current  Unique Step-Up/Step-Down Operation (Buck-Boost Mode.

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The Future of Analog IC Technology
DESCRIPTION
The MP24833-A is a 55V, 3A, white LED driver
suitable for step-down, inverting step-up/step-
down, and step-up applications. The MP24833-
A achieves 3A of output current with excellent
load and line regulation over a wide input
supply range.
Current mode operation provides a fast
transient response and eases loop stabilization.
Full protection features include thermal shutdown,
cycle-by-cycle peak current limiting, open-string
protection, and output short-circuit protection
(SCP).
The MP24833-A incorporates both DC and
PWM dimming into 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 MP24833-A requires a minimal number of
readily available, standard, external
components and is available in a SOIC-8 EP
package.
MP24833-A
55V, 3A,
White LED Driver
FEATURES
3A Maximum Output Current
Unique Step-Up/Step-Down Operation
(Buck-Boost Mode)
Wide 4.5V-to-55V Operating Input Range
for Step-Down Applications (Buck Mode)
0.15Internal Power MOSFET Switch
Fixed 210kHz Switching Frequency
Analog and PWM Dimming
0.2V Reference Voltage
6μA Shutdown Mode
No Minimum Number of LEDs Required
Stable with Low ESR Output Ceramic
Capacitors
Cycle-by-Cycle Over-Current Protection
(OCP)
Thermal Shutdown Protection
Open-String Protection
Output Short-Circuit Protection (SCP)
Available in a SOIC-8 EP Package
APPLICATIONS
General LED Illumination
LCD Backlight Panels
Notebook Computers
Automotive Internal Lighting
Portable Multimedia Players
Portable GPS Devices
All MPS parts are lead-free, halogen-free, and adhere to the RoHS
directive. For MPS green status, please visit the MPS website under
Quality Assurance. “MPS” and “The Future of Analog IC Technology” are
registered trademarks of Monolithic Power Systems, Inc.
TYPICAL APPLICATION
VIN
CIN
EN/DIM
ON
OFF
DC or PWM Input
1 VDD
3
OVP
5 EN/DIM
BST 7
8
SW
6 INGND
VSS
2
FB 4
CBST
D L Co
RFB
MP24833-A Rev. 1.02
www.MonolithicPower.com
3/29/2019
MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited.
© 2019 MPS. All Rights Reserved.
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