LM3402HVMRX/NOPB National Semiconductor, LM3402HVMRX/NOPB Datasheet - Page 2

• Manufacturer Part Number: LM3402HVMRX/NOPB
• Description: IC LED DRVR HP CONST CURR 8-PSOP
• Manufacturer: National Semiconductor
• Series: PowerWise®r
• Type: High Power, Constant Currentr

Specifications of LM3402HVMRX/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 ~ 75 V
• Mounting Type: Surface Mount
• Package / Case: 8-PSOP
• Operating Temperature: -40°C ~ 125°C
• Current - Output / Channel: 500mA
• Internal Switch(s): Yes
• Efficiency: 96%
• For Use With: 551600000-001A/NOPB - BOARD WEBENCH SO8/SOP LM3404/2551600003-001A - BOARD WEBENCH MSOP LM3402LM3402HVEVAL - BOARD EVALUATION FOR LM3402HV
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Voltage - Output: -
• Other names: LM3402HVMRX

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Connection Diagrams
Ordering Information
Pin Descriptions
LM3402HVMMX
LM3402HVMRX
Pin(s)
Order Number
LM3402HVMM
LM3402HVMR
DAP
LM3402MMX
LM3402MRX
LM3402MM
LM3402MR
1
2
3
4
5
6
7
8
BOOT
Name
GND
RON
GND
VCC
DIM
8-Lead Plastic MSOP-8 Package
VIN
SW
CS
NS Package Number MUA08A
Output of the internal 7V linear
MOSFET drive bootstrap pin
Current sense feedback pin
Package Type
Input for PWM dimming
MSOP-8
PSOP-8
On-time control pin
Input voltage pin
Thermal Pad
Description
Ground pin
Switch pin
regulator
20192102
NSC Package Drawing
Application Information
Connect this pin to the output inductor and Schottky diode.
Connect a 10 nF ceramic capacitor from this pin to SW.
Connect a logic-level PWM signal to this pin to enable/disable the
power FET and reduce the average light output of the LED array.
Connect this pin to system ground.
Set the current through the LED array by connecting a resistor from
this pin to ground.
A resistor connected from this pin to VIN sets the regulator controlled
on-time.
Bypass this pin to ground with a minimum 0.1 µF ceramic capacitor
with X5R or X7R dielectric.
Nominal operating input range is 6V to 42V (LM3402) or 6V to 75V
(LM3402HV).
Connect to ground. Place 4 to 6 vias from DAP to bottom layer ground
plane.
MUA08A
MRA08B
2
8-Lead Plastic PSOP-8 Package
NS Package Number MRA08B
1000 units on tape and reel
3500 units on tape and reel
1000 units on tape and reel
3500 units on tape and reel
2500 units on tape and reel
2500 units on tape and reel
95 units in anti-static rails
95 units in anti-static rails
Supplied As
20192145