The LM3404MAX/NOPB from Texas Instruments is a 1A constant current buck regulator for driving high power LEDs in 8 pin SOIC package. This monolithic switching regulator is designed to deliver constant currents to high power LEDs. This device contains a high side N-channel MOSFET switch with a current limit of 1.5A (typical) for step-down (buck) regulators. The LM3404HV device is a buck regulator with a wide input voltage range, low voltage reference and a fast output enable and disable function. Hysteretic controlled on-time and an external resistor allow the converter output voltage to adjust as needed to deliver a constant current to series and series-parallel connected LED arrays of varying number and type. Some features are: LED dimming using pulse width modulation (PWM), broken or open LED protection, low-power shutdown and thermal shutdown.
- VIN range from 6V to 42V
- 1.2A output current overtemperature
- Cycle by cycle current limit, thermal shutdown protection
- No control loop compensation required
- Separate PWM dimming and low power shutdown
- Supports all ceramic output capacitors and capacitor-less outputs
- IIN operating current is 625µA (non-switching, CS=0.5V), IIN shutdown current is 95µA (RON / SD=0V)
- Operating temperature range from -40°C to 125°C
Applications
Power Management, 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 |
1A |
| Switching Frequency |
1MHz |
| No. of Outputs |
1Outputs |
| IC Mounting |
Surface Mount |
| Driver Case Style |
SOIC |
| No. of Pins |
8Pins |
| Operating Temperature Min |
-40°C |
| Operating Temperature Max |
125°C |
| Product Range |
- |
| Automotive Qualification Standard |
- |
| MSL |
MSL 1 - Unlimited |
Other details
| Brand |
TEXAS INSTRUMENTS |
| Part Number |
LM3404MAX/NOPB |
| Quantity |
Each (Supplied on Cut Tape) |
All product and company names are trademarks™ or registered® trademarks of their respective holders. Use of them does not imply any affiliation with or endorsement by them. Image is for illustrative purposes only. Please refer to product description.
