Shenzhen Meiyuxin Technology Co., Ltd. [TI Distributor] a new original LM3409QMY/NOPB 42V Automotive PFET step-down controller for high-power LED driver!!!

Product description:

LM3409QMY/NOPB  are P-channel MOSFET (PFET) controllersfor step-down (buck) current regulators. They offer wide input voltage range, high-sidedifferential current sense with low adjustable threshold voltage and fast output enable/disablefunction and a thermally enhanced 10-pin, HVSSOP package. These features combine to make the LM3409 family of devices ideal for use as constant current sources for driving LEDs where forward currentsup to 5 A are easily achievable.

LM3409QMY/NOPB devices use constant off-time (COFT) control to regulate an accurate constantcurrent without the need for external control loop compensation. Analog and PWM dimming are easy toimplement and result in a highly linear dimming range with excellent achievable contrast ratios. Programmable UVLO, low-power shutdown, and thermal shutdown complete the feature set.

Product characteristics:

LM3409-Q1 and LM3409HV-Q1 are Automotive Grade Products: AEC-Q100 Grade 1 Qualified

2-Ω, 1-A Peak MOSFET Gate Drive

VIN Range: 6 V to 42 V (LM3409, LM3409-Q1)

VIN Range: 6 V to 75 V (LM3409HV, LM3409HV-Q1)

Differential, High-Side Current Sense

Cycle-by-Cycle Current Limit

No Control Loop Compensation Required

10,000:1 PWM Dimming Range

250:1 Analog Dimming Range

Supports All-Ceramic Output Capacitors and Capacitor-less Outputs

Low-Power Shutdown and Thermal Shutdown

Thermally Enhanced 10-Pin, HVSSOP Package

Applications

• LED Driver

• Constant Current Source

• Automotive Lighting

• General Illumination