| PartNumber | LM3421MHX/NOPB | LM3421MH/NOPB | LM3421-SEPICEV/NOPB |
| Description | LED Lighting Drivers N-Channel Controllers for Constant Curre | LED Lighting Drivers N-CH Cntlrs for Constnt Crnt LED Dvr | LED Lighting Development Tools LM3421-SEPIC EVAL BOARD |
| Manufacturer | Texas Instruments | Texas Instruments | Texas Instruments |
| Product Category | LED Lighting Drivers | LED Lighting Drivers | LED Lighting Development Tools |
| RoHS | Y | Y | Y |
| Minimum Operating Temperature | - 40 C | - 40 C | - |
| Maximum Operating Temperature | + 125 C | + 125 C | - |
| Mounting Style | SMD/SMT | SMD/SMT | - |
| Package / Case | HTSSOP-16 | HTSSOP-16 | - |
| Series | LM3421 | LM3421 | LM3421 |
| Packaging | Reel | Tube | - |
| Features | Adjustable Switch Frequency, Enable/Shutdown, Thermal Shutdown | Adjustable Switch Frequency, Enable/Shutdown, Thermal Shutdown | - |
| Height | 0.9 mm | 0.9 mm | - |
| Length | 5 mm | 5 mm | - |
| Operating Temperature Range | - 40 C to + 125 C | - 40 C to + 125 C | - |
| Width | 4.4 mm | 4.4 mm | - |
| Brand | Texas Instruments | Texas Instruments | Texas Instruments |
| Dimming | Analog,PWM | Analog,PWM | - |
| High Level Output Current | 35 uA | 35 uA | - |
| Low Level Output Current | 35 uA | 35 uA | - |
| Operating Supply Voltage | 4.5 V to 75 V | - | 12 V |
| Product Type | LED Lighting Drivers | LED Lighting Drivers | LED Lighting Development Tools |
| Factory Pack Quantity | 2500 | 92 | 1 |
| Subcategory | Driver ICs | Driver ICs | Development Tools |
| Unit Weight | 0.002049 oz | 0.002049 oz | - |
| Number of Channels | - | 1 Channel | - |
| Output Current | - | 5 A | 350 mA |
| Input Voltage | - | 4.5 V to 75 V | - |
| Operating Frequency | - | 100 kHz to 2 MHz | - |
| Supply Current Max | - | 3 mA | - |
| Output Type | - | Constant Current | - |
| Type | - | Inductive | - |
| Topology | - | Boost, Buck, SEPIC | - |
| Product | - | - | Evaluation Boards |
| For Use With | - | - | LM3421/3421-Q1 |
| Description/Function | - | - | SEPIC LED driver evaluation board for automotive applications |