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
LED Driver IC 1 Output DC DC Controller SEPIC, Step-Down (Buck), Step-Up (Boost) Analog, PWM Dimming 20-HTSSOP
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
IC LED DRIVER CTRLR DIM 20HTSSOP
IC LED DRIVER CTRLR PWM 20HTSSOP
| Texas Instruments | DigiKey | Win Source Electronics | Lingto Electronic Limited | Shenzhen Shengyu Electronics Technology Limited | |
|---|---|---|---|---|---|
| Product Category | LED Drivers | LED Drivers | LED Drivers | LED Drivers | LED Drivers |
| Product Number | LM3423Q0MHX/NOPB | LM3423Q0MHX/NOPB-ND | 778949-LM3423Q0MHX/NOPB | LM3423Q0MHX/NOPB | LM3423Q0MHX/NOPB |
| Product Name | LM3423-Q1 N-Channel Controllers for Constant Current LED Drivers | LED Drivers | Board Mount LED Drivers - LM3423Q0MHX/NOPB | 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 |
