The LM3402MR/NOPB 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
- Green product and no Sb/Br
Applications
LED Lighting, Automotive, Industrial
Product details
| 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 |
SO PowerPAD |
| No. of Pins |
8Pins |
| Operating Temperature Min |
-40°C |
| Operating Temperature Max |
125°C |
| Product Range |
- |
| Automotive Qualification Standard |
- |
| MSL |
MSL 3 - 168 hours |
Other details
| Brand |
TEXAS INSTRUMENTS |
| Part Number |
LM3402MR/NOPB |
| Quantity |
Each |
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