LM3402MM Part Information
Details for LM3402MM by Texas Instruments
Electronic & Electrical Components>Semiconductors - ICs>Driver & Interface ICs
Part Description
The LM3402/HV are monolithic switching regulators designed to deliver constant currents to high power LEDs. Ideal for automotive, industrial, and general lighting applications, they contain a high-side Nchannel MOSFET switch with a current limit of 735 mA (typical) for step-down (Buck) regulators. Hysteretic control with controlled ON-time coupled with an external resistor allow the converter output voltage to adjust as needed to deliver a constant current to series and series - parallel connected arrays of LEDs of varying number and type, LED dimming by pulse width modulation (PWM), broken/open LED protection, low-power shutdown and thermal shutdown complete the feature set.
Part Downloads
Download PCB Footprint from Ultra Librarian
Part Features
- 500 mA Output Current Over Temperature
- Cycle-by-Cycle Current Limit
- Integrated 0.5-A N-channel MOSFET
- No Control Loop Compensation Required
- Separate PWM Dimming and Low Power Shutdown
- Supports All Ceramic-Output Capacitors and Capacitor-Less Outputs
- Thermal Shutdown Protection
- VIN Range from 6 V to 42 V (LM3402)
- VIN Range from 6 V to 75 V (LM3402HV)
- VSSOP, SO PowerPADu2122 Packages
Part Specifications
| Device Topology | Non Isolated Buck Constant Current |
| Input Voltage Min | 6V |
| Input Voltage Max | 42V |
| Output Voltage Max | 40V |
| Output Current Max | 500mA |
| Switching Frequency | 1MHz |
| No. of Outputs | 1Outputs |
| IC Mounting | SMD |
| Driver Case Style | MSOP |
| No. of Pins | 8Pins |
| Operating Temperature Min | -40°C |
| Operating Temperature Max | 125°C |
| Product Range | - |
| Automotive Qualification Standard | - |
| RoHS Phthalates Compliant | Yes |
| MSL | - |
| SVHC | No SVHC (27-Jun-2018) |
| Base Number | 3402 |
| Device Type | LED |
| Dimming Control Type | PWM |
| Input Voltage | 6V to 42V |
| LED Display Type | Discrete LED |
| LED Driver Application | Automotive Industrial Lighting |
| Operating Temperature Range | -40°C to +125°C |
| Output Current | 500mA |
| Output Voltage | 40V |
| Termination Type | Surface Mount Device |
| Topology | Buck (Step Down) |
