LM3409N/NOPB
Obsolete42-V PFET BUCK CONTROLLER FOR HIGH POWER LED DRIVES
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LM3409N/NOPB
Obsolete42-V PFET BUCK CONTROLLER FOR HIGH POWER LED DRIVES
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Technical Specifications
Parameters and characteristics for this part
| Specification | LM3409N/NOPB |
|---|---|
| Dimming | Analog, PWM |
| Grade | Automotive |
| Internal Switch(s) | False |
| Mounting Type | Through Hole |
| Number of Outputs | 1 |
| Operating Temperature [Max] | 125 ¯C |
| Operating Temperature [Min] | -40 °C |
| Package / Case | 14-DIP |
| Package / Case [x] | 0.3 " |
| Package / Case [y] | 7.62 mm |
| Topology | Step-Down (Buck) |
| Type | DC DC Controller |
| Voltage - Supply (Max) [Max] | 42 V |
| Voltage - Supply (Min) [Min] | 6 V |
Pricing
Prices provided here are for design reference only. For realtime values and availability, please visit the distributors directly
| Distributor | Package | Quantity | $ | |
|---|---|---|---|---|
| Texas Instruments | TUBE | 1 | $ 1.17 | |
| 100 | $ 0.96 | |||
| 250 | $ 0.69 | |||
| 1000 | $ 0.52 | |||
Description
General part information
LM3409HV-Q1 Series
The LM3409, LM3409-Q1, LM3409HV, and LM3409HV-Q1 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.
The LM3409 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.
The LM3409, LM3409-Q1, LM3409HV, and LM3409HV-Q1 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.
Documents
Technical documentation and resources
