(China (Mainland))
Product Summary
The LM3406MH is a monolithic switching regulator designed to deliver constant currents to high power LEDs. Ideal for automotive, industrial, and general lighting applications, it contains 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. Its feature set is rounded out with lowpower shutdown and thermal shutdown protection.
Parametrics
Absolute maximum ratings: (1)VIN to GND: -0.3V to 45V; (2)VINS to GND: -0.3V to 45V; (3)VOUT to GND: -0.3V to 45V; (4)BOOT to GND: -0.3V to 59V; (5)SW to GND: -1.5V to 45V; (6)BOOT to VCC: -0.3V to 45V; (7)BOOT to SW: -0.3V to 14V; (8)VCC to GND: -0.3V to 14V; (9)DIM to GND: -0.3V to 7V; (10)COMP to GND: -0.3V to 7V; (11)CS to GND: -0.3V to 7V; (12)RON to GND: -0.3V to 7V; (13)Junction Temperature: 150℃; (14)Storage Temp. Range: -65℃ to 125℃; (15)ESD Rating: 2kV.
Features
Features: (1)Integrated 2.0A MOSFET; (2)VIN Range 6V to 42V; (3)True average output current control; (4)1.7A Minimum Output Current Limit Over Temperature; (5)Cycle-by-Cycle Current Limit; (6)PWM Dimming with Dedicated Logic Input; (7)PWM Dimming with Power Input Voltage; (8)Simple Control Loop Compensation; (9)Low Power Shutdown; (10)Supports All-Ceramic Output Capacitors and Capacitorless Outputs; (11)Thermal Shutdown Protection; (12)eTSSOP-14 Package.
Diagrams
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 LM3406MH |
Other |
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Data Sheet |
Negotiable |
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LM3406MH/NOPB |
National Semiconductor (TI) |
Switching Converters, Regulators & Controllers 1.5A CONSTANT CRNT BUCK REG |
Data Sheet |
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LM3406MHEVAL/NOPB |
National Semiconductor (TI) |
LED Lighting Development Tools LM3406MH EVAL BOARD |
Data Sheet |
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LM3406MHX/NOPB |
National Semiconductor (TI) |
Switching Converters, Regulators & Controllers |
Data Sheet |
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LM3406MHEVAL |
National Semiconductor |
BOARD EVAL FOR LM3406MH |
Data Sheet |
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