Skip to the content
PCBKitNew board
LM3402MR on a board, in 3D

LM3402MR

Texas Instruments

-40℃~+125℃ 1 1MHz 500mA 6V~42V Buck DC-DC PWM Short Circuit Protection、Over Voltage Protection、Over-Temperature Protection (OTP)、LED open-circuit protection SO-8-EP LED Drivers ROHS

Extended
Category
LED Drivers
Package
SO-8-EP
Pins
9

Overview

The LM3402MR is a LED Driver made by Texas Instruments in a SO-8-EP package with 9 pins. -40℃~+125℃ 1 1MHz 500mA 6V~42V Buck DC-DC PWM Short Circuit Protection、Over Voltage Protection、Over-Temperature Protection (OTP)、LED open-circuit protection SO-8-EP LED Drivers ROHS.

PCBKit's library has its KiCad symbol (Celestial_Driver_LED:TI LM3402MR, from Altium's library) and its footprint (EasyEDA_Cloud:SO-8_L4.9-W3.9-P1.27-LS6.0-BL-EP, from EasyEDA), ready for a KiCad board. JLCPCB lists it (part C1554393).

Symbol

SW1BOOT2DIM3RON6GND4DAP9CS5VIN8VCC7
Celestial_Driver_LED:TI LM3402MRFrom Altium's library

Footprint

123456789
EasyEDA_Cloud:SO-8_L4.9-W3.9-P1.27-LS6.0-BL-EPFrom EasyEDA

Parameters

10
Dimming
PWM
Features
Short Circuit Protection, Over Voltage Protection, Over-Temperature Protection (OTP), LED open-circuit protection
Frequency - Switching
1MHz
Number of Channels
1
Operating temperature
-40℃~+125℃
Output Current
500mA
Switch Tube (Built-In/External)
Built-in
Topology
Buck
Type
DC-DC
Voltage - Input(DC)
6V~42V

Order codes

1

Pinout

9
The pins of the LM3402MR
PinNameType
1SWPassive
2BOOTPassive
3DIMPassive
4GNDPassive
5CSPassive
6RONPassive
7VCCPassive
8VINPassive
9DAPPassive

Show this part on your page

A live frame, for any web page
<iframe src="https://pcbkit.io/embed/parts/ti/LM3402MR" title="LM3402MR in PCBKit" width="100%" height="480" style="border:0;border-radius:12px" allow="fullscreen" loading="lazy"></iframe>
A picture
<img src="https://pcbkit.io/embed/parts/ti/LM3402MR.jpg" alt="LM3402MR" width="1200" height="900">
A picture that opens the part, for a README
[![LM3402MR](https://pcbkit.io/embed/parts/ti/LM3402MR.jpg?size=s)](https://pcbkit.io/parts/ti/LM3402MR)

Questions

Is there a KiCad symbol and footprint for the LM3402MR?

Yes. The symbol is Celestial_Driver_LED:TI LM3402MR and the footprint EasyEDA_Cloud:SO-8_L4.9-W3.9-P1.27-LS6.0-BL-EP, both drawn on this page. PCBKit places them on a board for you when you design with it.

What package is the LM3402MR?

SO-8-EP, with 9 pins. Its footprint is drawn on this page.

Where is the LM3402MR datasheet?

Texas Instruments publishes it: the Datasheet link on this page opens it.

Where can I order the LM3402MR?

JLCPCB lists it as part C1554393, with 0 in stock; the sellers' links on this page open their listings.

What can replace the LM3402MR?

Parts like it in the library: the AL8843SP by Diodes Incorporated, the AL8862SP by Diodes Incorporated, the PAM2808BLBR by Diodes Incorporated and the AL8822SP by Diodes Incorporated. Check their datasheets: a part that fits the footprint may still differ in its ratings.

Parts like it

8