LM3406
LM3406 is 1.5-A Constant Current Buck Regulator manufactured by Texas Instruments.
URES
- 1 LM3406HV-Q1
- Automotive Grade Device
- AEC-Q100 Grade 1 Qualified
- Operating Ambient Temperature:
- 40°C to 125°C
- Integrated 2.0A MOSFET
- VIN Range 6V to 42V (LM3406)
- VIN Range 6V to 75V (LM3406HV)
- VIN Range 6V to 75V (LM3406HV-Q1)
- True Average Output Current Control
- 1.7A Minimum Output Current Limit Over
Temperature
- Cycle-by-Cycle Current Limit
- PWM Dimming with Dedicated Logic Input
- PWM Dimming with Power Input Voltage
- Simple Control Loop pensation
- Low Power Shutdown
- Supports All-Ceramic Output Capacitors and
Capacitor-less Outputs
- Thermal Shutdown Protection
- TSSOP-14 Package
3 DESCRIPTION
The LM3406 family 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 N-channel MOSFET switch with a current limit of 2.0A (typical) for step-down (Buck) regulators. Controlled on-time with true average current and an external current sense 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. LED dimming via pulse width modulation (PWM) is achieved using a dedicated logic pin or by PWM of the power input voltage. The product feature set is rounded out with low-power shutdown and thermal shutdown protection.
The LM3406HV-Q1 is AEC-Q100 grade 1 qualified.
2 APPLICATIONS
- LED Driver
- Constant Current Source
- Automotive Lighting
- General...
