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LM3406HV 数据表(PDF) 1 Page - Texas Instruments

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部件名 LM3406HV
功能描述  1.5A Constant Current Buck Regulator for Driving High Power LEDs
Download  37 Pages
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制造商  TI1 [Texas Instruments]
网页  http://www.ti.com
标志 TI1 - Texas Instruments

LM3406HV 数据表(HTML) 1 Page - Texas Instruments

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background image
GND
DIM
BOOT
SW
VOUT
RON
LM3406/06HV
VIN,VINS
D1
L1
CB
RSNS
CF
RON
CIN
VIN
IF
VCC
CS
COMP
CC
LM3406, LM3406HV
www.ti.com
SNVS512C – SEPTEMBER 2008 – REVISED FEBRUARY 2010
LM3406/06HV 1.5A Constant Current Buck Regulator for Driving High Power LEDs
Check for Samples: LM3406, LM3406HV
1
FEATURES
DESCRIPTION
The
LM3406/06HV
are
monolithic
switching
2
Integrated 2.0A MOSFET
regulators designed to deliver constant currents to
VIN Range 6V to 42V (LM3406)
high power LEDs. Ideal for automotive, industrial, and
VIN Range 6V to 75V (LM3406HV)
general lighting applications, they contain a high-side
N-channel MOSFET switch with a current limit of
True Average Output Current Control
2.0A
(typical)
for
step-down
(Buck)
regulators.
1.7A Minimum Output Current Limit Over
Controlled on-time with true average current and an
Temperature
external current sense resistor allow the converter
Cycle-by-Cycle Current Limit
output voltage to adjust as needed to deliver a
constant
current
to
series
and
series-parallel
PWM Dimming with Dedicated Logic Input
connected LED arrays of varying number and type.
PWM Dimming with Power Input Voltage
LED dimming via pulse width modulation (PWM) is
Simple Control Loop Compensation
achieved using a dedicated logic pin or by PWM of
the power input voltage. The product feature set is
Low Power Shutdown
rounded out with low-power shutdown and thermal
Supports All-Ceramic Output Capacitors and
shutdown protection.
Capacitor-less Outputs
Thermal Shutdown Protection
TSSOP-14 Package
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 © 2008–2010, 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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