Texas Instruments LM3407 Evaluation Board LM3407EVAL/NOPB LM3407EVAL/NOPB 数据表
产品代码
LM3407EVAL/NOPB
SNVS553B – JANUARY 2008 – REVISED MAY 2013
350 mA, Constant Current Output Floating Buck Switching Converter for High Power
LEDs
Check for Samples:
1
FEATURES
DESCRIPTION
The LM3407 is a constant current output floating
2
•
Input operating range 4.5V to 30V
buck
switching
converter
designed
to
provide
•
Output voltage range: 0.1V
IN
to 0.9V
IN
constant current to high power LEDs. The device is
•
Accurate constant current output
ideal for automotive, industrial and general lighting
applications. The LM3407 has an integrated power N-
applications. The LM3407 has an integrated power N-
•
Independent device enable (CMOS compatible)
MOSFET that makes the application solution compact
and PWM dimming control
and simple to implement. An external 1% thick-film
•
Converter switching frequency adjustable from
resistor allows the converter output voltage to adjust
300 kHz to 1 MHz
as needed to deliver constant current within 10%
•
No external control loop compensation
accuracy to a serially connected LED string of varying
number and type. Converter switching frequency is
number and type. Converter switching frequency is
required
adjustable from 300 kHz to 1 MHz. The LM3407
•
Supports ceramic and low ESR output
features a dimming input to enable LED brightness
capacitors
control
by
Pulse
Width
Modulation
(PWM).
•
Input Under Voltage Lock Out (UVLO)
Additionally, a separate enable pin allows for low
power
power
shutdown.
An
exposed
pad
MSOP-8
•
Thermal shutdown protection
PowerPAD
package
provides
excellent
heat
•
MSOP-8 PowerPAD Package
dissipation and thermal performance. Input UVLO
and output open-circuit protection ensure a robust
and output open-circuit protection ensure a robust
APPLICATIONS
LED driver solution.
•
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.
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 © 2008–2013, 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.