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MPS

MP24833GN Datasheet Preview

MP24833GN Datasheet

White LED Driver

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The Future of Analog IC Technology
MP24833
3A, 55V
White LED Driver
DESCRIPTION
The MP24833 is a 55V, 3A, white LED driver
suitable for step-down, inverting step-up/down
and step-up applications. It achieves 3A output
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, open strings
protection and output short circuit protection.
The MP24833 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 MP24833 requires a minimal number of
readily-available standard external components
and is available in an SOIC8E package.
FEATURES
3A Maximum Output Current
Unique Step-Up/Down Operation (Buck-
Boost Mode)
Wide 4.5V-to-55V Operating Input Range
for Step-Down Applications (Buck Mode)
0.19Internal Power MOSFET Switch
Fixed 200kHz Switching Frequency
Analog and PWM Dimming
0.198V Reference Voltage
6μA Shutdown Mode
No Minimum Number of LEDs 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 an SOIC8E 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 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
7
BST
5
EN/DIM
8
SW
6 INGND
VSS
2
4
FB
CBST
L
D
Co
RFB
MP24833 Rev. 1.03
www.MonolithicPower.com
1
05/05/2010
MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited.
© 2016 MPS. All Rights Reserved.




MPS

MP24833GN Datasheet Preview

MP24833GN Datasheet

White LED Driver

No Preview Available !

MP24833 – 3A, 55V WHITE LED DRIVER
Part Number*
MP24833GN
ORDERING INFORMATION
Package
SOIC-8 EP
Top Marking
MP24833
* For Tape & Reel, add suffix –Z (e.g. MP24833GN–Z).
PACKAGE REFERENCE
SOIC8E
ABSOLUTE MAXIMUM RATINGS (1)
Supply Voltage VDD - VSS ............................. 60V
VSW - VSS ............................... -0.3V to VIN + 0.3V
VBST ...................................................... VSW + 6V
VEN/Dim - VINGND.................................-0.3V to +6V
VINGND - VSS .....................................-0.3V to 60V
Other pins - VSS...............................-0.3V to +6V
Continuous Power Dissipation (TA = +25°C) (2)
SOIC8E...................................................... 2.5W
Junction Temperature ...............................150°C
Lead Temperature ....................................260°C
Storage Temperature............... -65°C to +150°C
Recommended Operating Conditions (3)
Supply Voltage VDD - VSS .................4.5V to 55V
Operating Junction Temp. (TJ). -40°C to +125°C
Thermal Resistance (4) θJA θJC
SOIC-8 EP ..............................50 ...... 10 ... °C/W
Notes:
1) Exceeding these ratings may damage the device.
2) The maximum allowable power dissipation is a function of the
maximum junction temperature TJ (MAX), the junction-to-
ambient thermal resistance θJA, and the ambient temperature
TA. The maximum allowable continuous power dissipation at
any ambient temperature is calculated by PD (MAX) = (TJ
(MAX)-TA)/θJA. Exceeding the maximum allowable power
dissipation will cause excessive die temperature, and the
regulator will go into thermal shutdown. Internal thermal
shutdown circuitry protects the device from permanent
damage.
3) The device function is not guaranteed outside of the
recommended operating conditions.
4) Measured on JESD51-7, 4-layer PCB.
MP24833 Rev. 1.03
www.MonolithicPower.com
2
05/05/2010
MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited.
© 2016 MPS. All Rights Reserved.


Part Number MP24833GN
Description White LED Driver
Maker MPS
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