LM3404 Datasheet | Texas Instruments

ures - 1 Integrated 1-A MOSFET - VIN Range 6 V to 42 V (LM3404) - VIN Range 6 V to 75 V (LM3404HV) - 1.2-A Output Current Overtemperature - Cycle-by-Cycle Current Limit - No Control Loop pensation Required - Separate PWM Dimming and Low Power Shutdown - Supports All-Ceramic Output Capacitors and Capacitor-less Outputs - Thermal Shutdown Protection - SOIC-8 Package, SO Power PAD™-8 Package 3 Description The LM3404 and LM3404HV devices are monolithic switching regulators designed to deliver constant currents to high power LEDs. Ideal for automotive, industrial, and general lighting applications, these devices contain a high-side N-channel MOSFET switch with a current limit of 1.5-A (typical) for step-down (Buck) regulators. 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. 2 Applications - LED Drivers - Constant Current Sources - Automotive Lighting - General Illumination - Industrial Lighting Device Information(1) PART NUMBER PACKAGE BODY SIZE (NOM) SOIC (8) LM3404, LM3404HV SO Power PAD (8) 3.91 mm × 4.90 mm 3.90 mm × 4.89 mm (1) For all available packages, see the orderable addendum at the end of the data sheet. Typical Application...