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LM3402MR 数据表(PDF) 1 Page - Texas Instruments

部件名 LM3402MR
功能描述  0.5A Constant Current Buck Regulator for Driving High Power LEDs
Download  38 Pages
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制造商  TI [Texas Instruments]
网页  http://www.ti.com
标志 TI - Texas Instruments

LM3402MR 数据表(HTML) 1 Page - Texas Instruments

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background image
GND
DIM
BOOT
SW
CS
RON
LM3402/02HV
VIN
D1
L1
CB
RSNS
CF
RON
CIN
VIN
IF
VCC
LM3402, LM3402HV
www.ti.com
SNVS450E – SEPTEMBER 2006 – REVISED MAY 2013
0.5A Constant Current Buck Regulator for Driving High Power LEDs
Check for Samples: LM3402, LM3402HV
1
FEATURES
DESCRIPTION
The
LM3402/02HV
are
monolithic
switching
2
Integrated 0.5A N-channel MOSFET
regulators designed to deliver constant currents to
VIN Range from 6V to 42V (LM3402)
high power LEDs. Ideal for automotive, industrial, and
VIN Range from 6V to 75V (LM3402HV)
general lighting applications, they contain a high-side
N-channel MOSFET switch with a current limit of 735
500 mA Output Current Over Temperature
mA
(typical)
for
step-down
(Buck)
regulators.
Cycle-by-Cycle Current Limit
Hysteretic control with controlled on-time coupled with
No Control Loop Compensation Required
an external resistor allow the converter output voltage
to adjust as needed to deliver a constant current to
Separate PWM Dimming and Low Power
series and series - parallel connected arrays of LEDs
Shutdown
of varying number and type, LED dimming by pulse
Supports All-ceramic Output Capacitors and
width
modulation
(PWM),
broken/open
LED
Capacitor-less Outputs
protection,
low-power
shutdown
and
thermal
Thermal Shutdown Protection
shutdown complete the feature set.
VSSOP, SO PowerPAD Packages
APPLICATIONS
LED Driver
Constant Current Source
Automotive Lighting
General Illumination
Industrial Lighting
Typical Application
1
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of
Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
2
All trademarks are the property of their respective owners.
PRODUCTION DATA information is current as of publication date.
Copyright © 2006–2013, Texas Instruments Incorporated
Products conform to specifications per the terms of the Texas
Instruments standard warranty. Production processing does not
necessarily include testing of all parameters.


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