| TYPE | DESCRIPTION |
|---|
| Mounting Style | Surface Mount |
| Frequency | 1 MHz |
| Number of Pins | 8 Pin |
| Case/Package | MSOP-8 |
| Number of Outputs | 1 Output |
| Output Voltage | 40 V |
| Output Current | 500 mA |
| Number of Positions | 8 Position |
| Quiescent Current | 600 µA |
| Number of Regulated Outputs | 1 Output |
| Switching Frequency | 1 MHz |
| Topology | Buck |
| Input Voltage (Max) | 42 V |
| Input Voltage (Min) | 6 V |
| Operating Temperature (Max) | 125 ℃ |
| Operating Temperature (Min) | -40 ℃ |
| Supply Voltage (Max) | 42 V |
| Supply Voltage (Min) | 6 V |
| TYPE | DESCRIPTION |
|---|
| Product Lifecycle Status | Active |
| Packaging | Cut Tape (CT) |
| Operating Temperature | -40℃ ~ 125℃ (TJ) |
The LM3402MM is a Monolithic Switching Regulator designed to deliver constant currents to high power LEDs. It contains a high-side N-channel MOSFET switch with a current limit of 735mA (typical) for step-down (buck) regulator. 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.
● Integrated 0.5A N-channel MOSFET
● Cycle-by-cycle current limit
● No control loop compensation required
● Separate PWM dimming and low power shutdown
● Supports all ceramic-output capacitors and capacitor-less outputs
● Thermal shutdown protection
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