Texas Instruments LM3404 Evaluation Boards LM3404HVEVAL/NOPB LM3404HVEVAL/NOPB 用户手册
产品代码
LM3404HVEVAL/NOPB
GND
DIM
BOOT
SW
CS
RON
LM3404/04HV
VIN
D1
L1
C
B
R
SNS
C
F
R
ON
C
IN
V
IN
I
F
VCC
SNVS465F – OCTOBER 2006 – REVISED MAY 2013
1.0A Constant Current Buck Regulator for Driving High Power LEDs
Check for Samples:
1
FEATURES
DESCRIPTION
The
LM3404/04HV
are
monolithic
switching
2
•
Integrated 1.0A MOSFET
regulators designed to deliver constant currents to
•
V
IN
Range 6V to 42V (LM3404)
high power LEDs. Ideal for automotive, industrial, and
•
V
IN
Range 6V to 75V (LM3404HV)
general lighting applications, they contain a high-side
N-channel MOSFET switch with a current limit of
N-channel MOSFET switch with a current limit of
•
1.2A Output Current Over Temperature
1.5A
(typical)
for
step-down
(Buck)
regulators.
•
Cycle-by-Cycle Current Limit
Hysteretic controlled on-time and an external resistor
•
No Control Loop Compensation Required
allow the converter output voltage to adjust as
needed to deliver a constant current to series and
needed to deliver a constant current to series and
•
Separate PWM Dimming and Low Power
series-parallel connected LED arrays of varying
Shutdown
number and type. LED dimming via pulse width
•
Supports All-ceramic Output Capacitors and
modulation (PWM), broken/open LED protection, low-
Capacitor-less Outputs
power shutdown and thermal shutdown complete the
•
Thermal Shutdown Protection
feature set.
•
SOIC-8 Package, So PowerPAD-8 Package
APPLICATIONS
•
LED Driver
•
Constant Current Source
•
Automotive Lighting
•
General Illumination
•
Industrial Lighting
Typical Application
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Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
2
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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.
Instruments standard warranty. Production processing does not
necessarily include testing of all parameters.