The LM3423-Q1 is an N-Channel controller designed for constant current LED drivers, suitable for automotive and general illumination applications. It operates over a wide input voltage range of 4.5 V to 75 V and supports various topologies including buck, boost, buck-boost, and SEPIC. The device features high-side adjustable current sense, a 2-,Ѷ, 1-A peak MOSFET gate driver, and includes protections for undervoltage and overvoltage conditions. It supports both PWM and analog dimming, cycle-by-cycle current limiting, and has programmable switching frequencies up to 2 MHz. The LM3423-Q1 also incorporates thermal shutdown and zero current shutdown features, enhancing reliability in demanding environments. This part is AEC qualified, with a temperature range of -40¬8C to 150¬8C, making it suitable for automotive applications.
N-Channel Controllers for Constant Current LED Drivers 20-HTSSOP -40 to 150
Automotive N-channel constant current LED controller with series DIM FET driver and fault flag 20-HTSSOP -40 to 150 Product overview: LM3423Q0MHX/NOPB from Texas Instruments is a LED Driver IC for LED lighting, display backlights, indicator control, automotive lighting, signage, and regulated current drive circuits. It is useful for engineers and buyers comparing datasheets, replacement parts, BOM lines, package options, lifecycle status, and procurement availability. Key searchable attributes include Automotive, N-Channel, HTSSOP. Search-friendly keywords include LED driver IC, constant current, lighting control, display backlight, Automotive, N-Channel, HTSSOP, External/Internal LED Drivers. This listing supports clearer product discovery for industrial, commercial, repair, automation, power, sensing, and embedded system projects. Product number 137-LM3423Q0MHX/NOPB
Manufacturer: Texas Instruments
Win Source Part Number: 778949-LM3423Q0MHX/N
Series: Automotive, AEC-Q100
Packaging: Reel package
Type: DC DC Controller
Operating Temperature Range: -40°C ~ 150°C (TJ)
Package: 20-TSSOP (0.173", 4.40mm Width) Exposed Pad
Mounting: SMD
Frequency: 2MHz
Internal Switch(s): No
Topology: SEPIC, Step-Down (Buck), Step-Up (Boost)
Number of Outputs: 1
Dimming: Analog, PWM
Family Name: LM3423Q0
Categories: Integrated Circuits (ICs)
Manufacturer Package: 20-HTSSOP
Voltage Supply MAX: 75V
Voltage Supply MIN: 4.5V
Alternative Parts (Cross-Reference): ZXLD1362ET5; MAX16831ATJ+; MAX16831ATJ; MAX16816ATJ+T;
ECCN: EAR99
Country of Origin: Malaysia
Estimated EOL Date: 2031
Halogen Free: Compliant
Popularity: Medium
Fake Threat In the Open Market: 44 pct.
Supply and Demand Status: Limited
LED Driver IC 1 Output DC DC Controller SEPIC, Step-Down (Buck), Step-Up (Boost) Analog, PWM Dimming 20-HTSSOP
IC LED DRIVER CTRLR DIM 20HTSSOP
IC LED DRIVER CTRLR PWM 20HTSSOP
| Texas Instruments | ERSAELECTRONICS PTE. LTD. | Win Source Electronics | DigiKey | Lingto Electronic Limited | Shenzhen Shengyu Electronics Technology Limited | |
|---|---|---|---|---|---|---|
| Product Category | LED Drivers | LED Drivers | LED Drivers | LED Drivers | LED Drivers | LED Drivers |
| Product Number | LM3423Q0MHX/NOPB | 137-LM3423Q0MHX/NOPB | 778949-LM3423Q0MHX/NOPB | LM3423Q0MHX/NOPB-ND | LM3423Q0MHX/NOPB | LM3423Q0MHX/NOPB |
| Product Name | LM3423-Q1 N-Channel Controllers for Constant Current LED Drivers | Automotive N-Channel HTSSOP LED Driver IC | Board Mount LED Drivers - LM3423Q0MHX/NOPB | LED Drivers | PMIC - LED Drivers | Integrated Circuits (ICs) - Power Management (PMIC) - LED Drivers |
| Form Factor | Intgrated Circuit (IC) | Intgrated Circuit (IC) | Intgrated Circuit (IC) | |||
| Type | Dimmable | Dimmable | ||||
| Input Voltage | 4.5 to 75 volts | 4.5 to 75 volts | 4.5 to 75 volts | |||
| Output Voltage | 3 to 72 volts | 72 volts |
