Datasheet Texas Instruments LM3431-Q1
Manufacturer | Texas Instruments |
Series | LM3431-Q1 |
3-Channel Constant Current LED Driver with Integrated Boost Controller
Datasheets
LM3431/31A/31Q/31AQ 3-Chan Constant Current LED Driver w/Integrated Boost Cntr datasheet
PDF, 1.9 Mb, Revision: G, File published: May 2, 2013
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Status
LM3431AQMH/NOPB | LM3431AQMHX/NOPB | LM3431QMH/NOPB | LM3431QMHX/NOPB | |
---|---|---|---|---|
Lifecycle Status | Active (Recommended for new designs) | Active (Recommended for new designs) | Active (Recommended for new designs) | Active (Recommended for new designs) |
Manufacture's Sample Availability | Yes | No | Yes | No |
Packaging
LM3431AQMH/NOPB | LM3431AQMHX/NOPB | LM3431QMH/NOPB | LM3431QMHX/NOPB | |
---|---|---|---|---|
N | 1 | 2 | 3 | 4 |
Pin | 28 | 28 | 28 | 28 |
Package Type | PWP | PWP | PWP | PWP |
Industry STD Term | HTSSOP | HTSSOP | HTSSOP | HTSSOP |
JEDEC Code | R-PDSO-G | R-PDSO-G | R-PDSO-G | R-PDSO-G |
Package QTY | 48 | 2500 | 48 | 2500 |
Carrier | TUBE | LARGE T&R | TUBE | LARGE T&R |
Device Marking | LM3431 | AQMH | QMH | QMH |
Width (mm) | 4.4 | 4.4 | 4.4 | 4.4 |
Length (mm) | 9.7 | 9.7 | 9.7 | 9.7 |
Thickness (mm) | 1 | 1 | 1 | 1 |
Pitch (mm) | .65 | .65 | .65 | .65 |
Max Height (mm) | 1.2 | 1.2 | 1.2 | 1.2 |
Mechanical Data | Download | Download | Download | Download |
Parametrics
Parameters / Models | LM3431AQMH/NOPB | LM3431AQMHX/NOPB | LM3431QMH/NOPB | LM3431QMHX/NOPB |
---|---|---|---|---|
Applications | Backlight,Stop/Tail,Turn | Backlight,Stop/Tail,Turn | Backlight,Stop/Tail,Turn | Backlight,Stop/Tail,Turn |
Number of Channels | 3 | 3 | 3 | 3 |
Iout(Max), A | 0.6 | 0.6 | 0.6 | 0.6 |
Iq(Typ), mA | 4 | 4 | 4 | 4 |
LED Current Per Channel, mA | 200 | 200 | 200 | 200 |
Operating Temperature Range, C | -40 to 125 | -40 to 125 | -40 to 125 | -40 to 125 |
Package Group | HTSSOP | HTSSOP | HTSSOP | HTSSOP |
Package Size: mm2:W x L, PKG | 28HTSSOP: 62 mm2: 6.4 x 9.7(HTSSOP) | 28HTSSOP: 62 mm2: 6.4 x 9.7(HTSSOP) | 28HTSSOP: 62 mm2: 6.4 x 9.7(HTSSOP) | 28HTSSOP: 62 mm2: 6.4 x 9.7(HTSSOP) |
Rating | Automotive | Automotive | Automotive | Automotive |
Special Features | Adjustable Switch Frequency,Enable/Shutdown,Soft Start,Thermal Shutdown | Adjustable Switch Frequency,Enable/Shutdown,Soft Start,Thermal Shutdown | Adjustable Switch Frequency,Enable/Shutdown,Soft Start,Thermal Shutdown | Adjustable Switch Frequency,Enable/Shutdown,Soft Start,Thermal Shutdown |
Switching Frequency(Max), kHz | 1000 | 1000 | 1000 | 1000 |
Switching Frequency(Min), kHz | 200 | 200 | 200 | 200 |
Topology | Boost with Current Sink | Boost with Current Sink | Boost with Current Sink | Boost with Current Sink |
Vin(Max), V | 36 | 36 | 36 | 36 |
Vin(Min), V | 4.5 | 4.5 | 4.5 | 4.5 |
Vout(Max), V | 40 | 40 | 40 | 40 |
Vout(Min), V | 5.5 | 5.5 | 5.5 | 5.5 |
Eco Plan
LM3431AQMH/NOPB | LM3431AQMHX/NOPB | LM3431QMH/NOPB | LM3431QMHX/NOPB | |
---|---|---|---|---|
RoHS | Compliant | Compliant | Compliant | Compliant |
Application Notes
- AN-1656 Design Challenges of Switching LED Drivers (Rev. A)PDF, 171 Kb, Revision: A, File published: May 3, 2013
Using a switching regulator as an LED driver requires the designer to convert a voltage regulator into acurrent regulator. Beyond the challenge of changing the feedback system to control current, the LEDsthemselves present a load characteristic that is much different than the digital devices and other loads thatrequire constant voltage. The LED WEBENCHВ® online design environment predicts and
Model Line
Series: LM3431-Q1 (4)
Manufacturer's Classification
- Semiconductors> Power Management> LED Driver> Automotive LED Driver