LM3404MA/NOPB National Semiconductor, LM3404MA/NOPB Datasheet

IC LED DRVR HP CONST CURR 8-SOIC

LM3404MA/NOPB

Manufacturer Part Number
LM3404MA/NOPB
Description
IC LED DRVR HP CONST CURR 8-SOIC
Manufacturer
National Semiconductor
Series
PowerWise®r
Type
High Power, Constant Currentr
Datasheets

Specifications of LM3404MA/NOPB

Constant Current
Yes
Topology
PWM, Step-Down (Buck)
Number Of Outputs
1
Internal Driver
Yes
Type - Primary
Automotive
Type - Secondary
High Brightness LED (HBLED), White LED
Frequency
1MHz
Voltage - Supply
6 V ~ 42 V
Mounting Type
Surface Mount
Package / Case
8-SOIC (3.9mm Width)
Operating Temperature
-40°C ~ 125°C
Current - Output / Channel
1A
Internal Switch(s)
Yes
Efficiency
96%
Current, Input Bias
0.1 μA
Current, Output
1.2 A
Current, Supply
625 μA
Package Type
SOIC
Regulator Type
Buck (Step-Down), Switching
Temperature, Operating, Range
-40 to +125 °C
Time, Fall
20 ns
Time, Rise
20 ns
Voltage, Input
6 to 42 V
Voltage, Output
7 V
For Use With
551600000-001A/NOPB - BOARD WEBENCH SO8/SOP LM3404/2LM3404EVAL - BOARD EVALUATION LM3404
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Voltage - Output
-
Lead Free Status / Rohs Status
RoHS Compliant part Electrostatic Device
Other names
*LM3404MA
*LM3404MA/NOPB
LM3404MA
LM3404MATR
LM3404MATR
LM3404/04HV
1.0A Constant Current Buck Regulator for Driving High
Power LEDs
General Description
The LM3404/04HV are monolithic switching regulators de-
signed to deliver constant currents to high power LEDs. Ideal
for automotive, industrial, and general lighting applications,
they contain a high-side N-channel MOSFET switch with a
current limit of 1.5A (typical) for step-down (Buck) regulators.
Hysteretic controlled on-time and an external resistor allow
the converter output voltage to adjust as needed to deliver a
constant current to series and series-parallel connected LED
arrays of varying number and type. LED dimming via pulse
width modulation (PWM), broken/open LED protection, low-
power shutdown and thermal shutdown complete the feature
set.
Typical Application
Features
Applications
Integrated 1.0A MOSFET
V
V
1.2A Output Current Over Temperature
Cycle-by-Cycle Current Limit
No Control Loop Compensation Required
Separate PWM Dimming and Low Power Shutdown
Supports all-ceramic output capacitors and capacitor-less
outputs
Thermal shutdown protection
SO-8 Package, PSOP-8 Package
LED Driver
Constant Current Source
Automotive Lighting
General Illumination
Industrial Lighting
IN
IN
Range 6V to 42V (LM3404)
Range 6V to 75V (LM3404HV)
20205401

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LM3404MA/NOPB Summary of contents

Page 1

LM3404/04HV 1.0A Constant Current Buck Regulator for Driving High Power LEDs General Description The LM3404/04HV are monolithic switching regulators de- signed to deliver constant currents to high power LEDs. Ideal for automotive, industrial, and general lighting applications, they contain a ...

Page 2

Connection Diagrams 8-Lead Plastic SO-8 Package NS Package Number M08A Ordering Information Order Number Package Type LM3404MA LM3404MAX SO-8 LM3404HVMA LM3404HVMAX LM3404MR LM3404MRX PSOP-8 LM3404HVMR LM3404HVMRX Pin Descriptions Pin(s) Name Description 1 SW Switch pin 2 BOOT MOSFET drive bootstrap ...

Page 3

... Absolute Maximum Ratings (LM3404) (Note 1) If Military/Aerospace specified devices are required, please contact the National Semiconductor Sales Office/ Distributors for availability and specifications. VIN to GND BOOT to GND SW to GND BOOT to VCC BOOT to SW VCC to GND DIM to GND CS to GND RON to GND Junction Temperature Storage Temp ...

Page 4

Electrical Characteristics for +25°C. (Note 4) Limits appearing in boldface type apply over full Operating Temperature Range. Datasheet min max specification limits are guaranteed by design, test, or statistical analysis. LM3404 Symbol Parameter SYSTEM ...

Page 5

Symbol Parameter DIM COMPARATOR V Logic High IH V Logic Low IL I DIM Pull-up Current DIM-PU MOSFET AND DRIVER R Buck Switch On Resistance DS-ON V BST Under-voltage Lock-out DR-UVLO Threshold V BST Under-voltage Lock-out DR-HYS Hysteresis THERMAL SHUTDOWN ...

Page 6

Physical Dimensions inches (millimeters) unless otherwise noted SO-8 Package NS Package Number M08A PSOP-8 Package NS Package Number MRA08B 23 ...

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