LM3409QMY/NOPB is a P-channel MOSFET (PFET) controller for step-down (step-down) current regulators. They provide a wide input voltage range, high side differential current sensing, low adjustable threshold voltage and fast output enable/disable functions, and a thermally enhanced 10 pin HVSSOP package. The combination of these characteristics makes LM3409 series devices an ideal choice for driving LED constant current sources. In this case, it is easy to achieve 5A forward current.

The LM3409 device uses constant off time (COFT) control to adjust accurate constant current without external control loop compensation. Analog dimming and PWM dimming are easy to achieve and produce a highly linear dimming range with excellent contrast achievable. Programmable UVLO, low power shutdown, and thermal shutdown complete the feature set.

Product specification:

Product category: LED lighting driver

RoHS: Details

Series: LM3409-Q1

Installation style: SMD/SMT

Package/box: MSOP-PowerPad-10

Number of output terminals: 1 Output

Output current: 5 A

Input voltage (minimum): 6 V

Input voltage (maximum): 42 V

Topology: Buck

Operating frequency: 300 kHz to 1 MHz

Output voltage: adjustable

Minimum operating temperature: - 40 C

Maximum operating temperature:+125 C

Qualification: AEC-Q100

Features: Adjustable Switch Frequency, Enable/Shutdown, Precision Dimming Control, Thermal Shutdown

Input voltage: 6 V to 42 V

Humidity sensitivity: Yes

Number of channels: 1 channel

Operating temperature range: - 40 C to+125 C

Output type: Constant Current

Product type: LED Lighting Drivers

Subcategory: Driver ICs

Supply current - maximum: 2 mA

Type: Inductive

Unit weight: 23.500 mg