LM3643AYFF

Texas Instruments

-40℃~+85℃ 1.5A 2 2.5V~5.5V 2MHz、4MHz 7% Boost Built-in DC-DC Over Voltage Protection PWM DSBGA-12 LED Drivers ROHS

Extended

Category: LED Drivers
Package: DSBGA-12
Pins: 12

Overview

The LM3643AYFF is a LED Driver made by Texas Instruments in a DSBGA-12 package with 12 pins. -40℃~+85℃ 1.5A 2 2.5V~5.5V 2MHz、4MHz 7% Boost Built-in DC-DC Over Voltage Protection PWM DSBGA-12 LED Drivers ROHS.

PCBKit's library has its KiCad symbol (EasyEDA_Cloud:LM3643AYFFR, from EasyEDA) and its footprint (EasyEDA_Cloud:DSBGA-12_L1.3-W1.7-R4-C3-P0.40-TL, from EasyEDA), ready for a KiCad board. 61 are in stock at JLCPCB (part C701857).

Symbol

EasyEDA_Cloud:LM3643AYFFRFrom EasyEDA

Footprint

EasyEDA_Cloud:DSBGA-12_L1.3-W1.7-R4-C3-P0.40-TLFrom EasyEDA

Parameters

Constant Current Accuracy: 7%
Dimming: PWM
Features: Short Circuit Protection
Frequency - Switching: 2MHz
Number of Channels: 2
Operating temperature: -40℃~+85℃
Output Current: 1.5A
Switch Tube (Built-In/External): Built-in
Topology: Boost
Type: DC-DC
Voltage - Input(DC): 2.5V~5.5V

Order codes

LM3643AYFFRLCSC C701857

Pinout

The pins of the LM3643AYFF
Pin	Name	Type
A1	GND	Unspecified
A2	IN	Unspecified
A3	SDA	Unspecified
B1	SW	Unspecified
B2	STROBE	Unspecified
B3	SCL	Unspecified
C1	OUT	Unspecified
C2	HWEN	Unspecified
C3	TORCH/TEMP	Unspecified
D1	LED2	Unspecified
D2	TX	Unspecified
D3	LED1	Unspecified

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A picture

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Questions

Is there a KiCad symbol and footprint for the LM3643AYFF?

Yes. The symbol is EasyEDA_Cloud:LM3643AYFFR and the footprint EasyEDA_Cloud:DSBGA-12_L1.3-W1.7-R4-C3-P0.40-TL, both drawn on this page. PCBKit places them on a board for you when you design with it.

What package is the LM3643AYFF?

DSBGA-12, with 12 pins. Its footprint is drawn on this page.

Where is the LM3643AYFF datasheet?

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

Where can I order the LM3643AYFF?

JLCPCB lists it as part C701857, with 61 in stock; the sellers' links on this page open their listings.

What can replace the LM3643AYFF?

Parts like it in the library: the AL3644TTCH12 by Diodes Incorporated, the LM3648TTYFF by Texas Instruments and the LM3648YFF by Texas Instruments. Check their datasheets: a part that fits the footprint may still differ in its ratings.