SNVS602L March 2009 – June 2016 LM3409 , LM3409-Q1 , LM3409HV , LM3409HV-Q1
PRODUCTION DATA.
The LM3409, LM3409-Q1, LM3409HV, and LM3409HV-Q1 are P-channel MOSFET (PFET) controllers for step-down (buck) current regulators. They offer wide input voltage range, high-side differential current sense with low adjustable threshold voltage and fast output enable/disable function 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 currents up to 5 A are easily achievable.
The LM3409 devices use constant off-time (COFT) control to regulate an accurate constant current without the need for external control loop compensation. Analog and PWM dimming are easy to implement 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.
PART NUMBER | PACKAGE | BODY SIZE (NOM) |
---|---|---|
LM3409 | HVSSOP (10) | 3.00 mm × 3.00 mm |
PDIP (14) | 19.177 mm × 6.35 mm | |
LM3409-Q1 | HVSSOP (10) | 3.00 mm × 3.00 mm |
LM3409HV | ||
LM3409HV-Q1 |