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LM3410-Q1 Datasheet Preview

LM3410-Q1 Datasheet

Constant-Current Boost and SEPIC LED Driver

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LM3410, LM3410-Q1
SNVS541H – OCTOBER 2007 – REVISED AUGUST 2016
LM3410, LM3410-Q1 525-kHz and 1.6-MHz, Constant-Current Boost and SEPIC LED Driver
With Internal Compensation
1 Features
1 Qualified for Automotive Applications
• AEC-Q100 Test Guidance With the Following:
– Device Temperature Grade 1: –40°C to 125°C
Ambient Operating Temperature Range
– Device HBM ESD Classification Level 2
– Device CDM ESD Classification Level C6
• Space-Saving SOT-23 and WSON Packages
• Input Voltage From 2.7 V to 5.5 V
• Output Voltage From 3 V to 24 V
• 2.8-A (Typical) Switch Current Limit
• High Switching Frequency
– 525 KHz (LM3410Y)
– 1.6 MHz (LM3410X)
• 170-mΩ NMOS Switch
• 190-mV Internal Voltage Reference
• Internal Soft Start
• Current-Mode, PWM Operation
• Thermal Shutdown
2 Applications
• LED Backlight Current Sources
• LiIon Backlight OLED and HB LED Drivers
• Handheld Devices
• LED Flash Drivers
• Automotive Applications
3 Description
The LM3410 and LM3410-Q1 constant current LED
driver are a monolithic, high frequency, PWM DC-DC
converter, available in 6-pin WSON, 8-pin MSOP-
PowerPad™, and 5-pin SOT-23 packages. With a
minimum of external components the LM3410 and
LM3410-Q1 are easy to use. It can drive 2.8-A
(typical) peak currents with an internal 170-mΩ
NMOS switch. Switching frequency is internally set to
either 525 kHz or 1.6 MHz, allowing the use of
extremely small surface mount inductors and chip
capacitors. Even though the operating frequency is
high, efficiencies up to 88% are easy to achieve.
External shutdown is included, featuring an ultra-low
standby current of 80 nA. The LM3410 and LM3410-
Q1 use current-mode control and internal
compensation to provide high-performance over a
wide range of operating conditions. Additional
features include PWM dimming, cycle-by-cycle
current limit, and thermal shutdown.
Device Information(1)
PART NUMBER
PACKAGE
BODY SIZE (NOM)
LM3410,
LM3410Q
WSON (6)
MSOP-PowerPAD (8)
SOT-23 (5)
3.00 mm × 3.00 mm
2.90 mm × 1.60 mm
3.00 mm × 3.00 mm
(1) For all available packages, see the orderable addendum at
the end of the data sheet.
Typical Boost Application Circuit
L1 D1
VIN
Typical Efficiency (LM3410X)
DIMM
C1
4
DIM
5
VIN
3
FB
2
GND
1
SW
LEDs
C2
R1
Copyright © 2016, Texas Instruments Incorporated
1
An IMPORTANT NOTICE at the end of this data sheet addresses availability, warranty, changes, use in safety-critical applications,
intellectual property matters and other important disclaimers. PRODUCTION DATA.




etcTI

LM3410-Q1 Datasheet Preview

LM3410-Q1 Datasheet

Constant-Current Boost and SEPIC LED Driver

No Preview Available !

LM3410, LM3410-Q1
SNVS541H – OCTOBER 2007 – REVISED AUGUST 2016
www.ti.com
Table of Contents
1 Features .................................................................. 1
2 Applications ........................................................... 1
3 Description ............................................................. 1
4 Revision History..................................................... 2
5 Pin Configuration and Functions ......................... 3
6 Specifications......................................................... 4
6.1 Absolute Maximum Ratings ...................................... 4
6.2 ESD Ratings.............................................................. 4
6.3 Recommended Operating Conditions....................... 4
6.4 Thermal Information .................................................. 4
6.5 Electrical Characteristics........................................... 5
6.6 Typical Characteristics .............................................. 6
7 Detailed Description .............................................. 8
7.1 Overview ................................................................... 8
7.2 Functional Block Diagram ....................................... 10
7.3 Feature Description................................................. 10
7.4 Device Functional Modes........................................ 10
8 Application and Implementation ........................ 11
8.1 Application Information............................................ 11
8.2 Typical Applications ................................................ 19
9 Power Supply Recommendations...................... 31
10 Layout................................................................... 32
10.1 Layout Guidelines ................................................. 32
10.2 Layout Examples................................................... 32
10.3 Thermal Considerations ........................................ 33
11 Device and Documentation Support ................. 40
11.1 Device Support...................................................... 40
11.2 Documentation Support ........................................ 41
11.3 Related Links ........................................................ 41
11.4 Receiving Notification of Documentation Updates 41
11.5 Community Resources.......................................... 41
11.6 Trademarks ........................................................... 41
11.7 Electrostatic Discharge Caution ............................ 41
11.8 Glossary ................................................................ 41
12 Mechanical, Packaging, and Orderable
Information ........................................................... 42
4 Revision History
NOTE: Page numbers for previous revisions may differ from page numbers in the current version.
Changes from Revision G (April 2013) to Revision H
Page
• Added Device Information table, ESD Ratings table, Thermal Information table, Detailed Description section,
Feature Description section, Device Functional Modes section, Application and Implementation section, Typical
Application section, Power Supply Recommendations section, Layout section, Device and Documentation Support
section, and Mechanical, Packaging, and Orderable Information section.............................................................................. 1
• Added AEC-Q100 Test Guidance bullets to Features............................................................................................................ 1
• Changed RθJA value for NGG package from 80°C/W : to 55.3°C/W ...................................................................................... 4
• Changed RθJA value for DGN package from 80°C/W : to 53.7°C/W ...................................................................................... 4
• Changed RθJA value for DBV package from 118°C/W : to 164.2°C/W ................................................................................... 4
• Changed RθJC(top) value for NGG package from 18°C/W : to 65.9°C/W ................................................................................. 4
• Changed RθJC(top) value for DGN package from 18°C/W : to 61.4°C/W ................................................................................. 4
• Changed RθJC(top) value for DBV package from 60°C/W : to 115.3°C/W ................................................................................ 4
Changes from Revision F (May 2013) to Revision G
Page
• Changed layout of National Semiconductor Data Sheet to TI format .................................................................................... 1
2 Submit Documentation Feedback
Copyright © 2007–2016, Texas Instruments Incorporated
Product Folder Links: LM3410 LM3410-Q1


Part Number LM3410-Q1
Description Constant-Current Boost and SEPIC LED Driver
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