LM3431MH

Texas Instruments

-40℃~+125℃ 200kHz~1MHz 200mA 3 4.5V~36V Analog、PWM Boost HTSSOP-28-EP LED Drivers ROHS

Extended

Category: LED Drivers
Package: HTSSOP-28-EP
Pins: 2

Overview

The LM3431MH is a LED Driver made by Texas Instruments in a HTSSOP-28-EP package with 29 pins. -40℃~+125℃ 200kHz~1MHz 200mA 3 4.5V~36V Analog、PWM Boost HTSSOP-28-EP LED Drivers ROHS.

PCBKit's library has its KiCad symbol (EasyEDA_Cloud:LM3431AQMH_NOPB, from EasyEDA) and its footprint (EasyEDA_Cloud:HTSSOP-28_L9.7-W4.4-P0.65-LS6.4-BL-EP-4, from EasyEDA), ready for a KiCad board. JLCPCB lists it (part C1554227).

Symbol

EasyEDA_Cloud:LM3431AQMH_NOPBFrom EasyEDA

Footprint

EasyEDA_Cloud:HTSSOP-28_L9.7-W4.4-P0.65-LS6.4-BL-EP-4From EasyEDA

Parameters

Dimming: Analog, PWM
Features: Short Circuit Protection, Over Voltage Protection, Over-Temperature Protection (OTP), LED open-circuit protection, Built-in soft-start
Frequency - Switching: 200kHz~1MHz
Number of Channels: 3
Operating temperature: -40℃~+125℃
Output Current: 200mA
Switch Tube (Built-In/External): External
Topology: Boost
Type: DC-DC
Voltage - Input(DC): 4.5V~36V

Order codes

LM3431MH/NOPBLCSC C1554227

Pinout

The pins of the LM3431MH
Pin	Name	Type
1	VIN	Unspecified
2	PGND	Unspecified
3	VCC	Unspecified
4	LG	Unspecified
5	CS	Unspecified
6	ILIM	Unspecified
7	MODE/F	Unspecified
8	FF	Unspecified
9	RT	Unspecified
10	REF	Unspecified
11	REFIN	Unspecified
12	COMP	Unspecified
13	SGND	Unspecified
14	AFB	Unspecified
15	SS/SH	Unspecified
16	DLY	Unspecified
17	CFB	Unspecified
18	SC	Unspecified
19	LEDOFF	Unspecified
20	SNS3	Unspecified
21	NDRV3	Unspecified
22	SNS2	Unspecified
23	NDRV2	Unspecified
24	SNS1	Unspecified
25	NDRV1	Unspecified
26	THM	Unspecified
27	DIM	Unspecified
28	EN	Unspecified
29	SGND	Unspecified

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Questions

Is there a KiCad symbol and footprint for the LM3431MH?

Yes. The symbol is EasyEDA_Cloud:LM3431AQMH_NOPB and the footprint EasyEDA_Cloud:HTSSOP-28_L9.7-W4.4-P0.65-LS6.4-BL-EP-4, both drawn on this page. PCBKit places them on a board for you when you design with it.

What package is the LM3431MH?

HTSSOP-28-EP, with 29 pins. Its footprint is drawn on this page.

Where is the LM3431MH datasheet?

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

Where can I order the LM3431MH?

JLCPCB lists it as part C1554227, with 0 in stock; the sellers' links on this page open their listings.

What can replace the LM3431MH?

Parts like it in the library: the LM3431AMH by Texas Instruments and the LM3464AMH by Texas Instruments. Check their datasheets: a part that fits the footprint may still differ in its ratings.