LP3943ISQ/NOPB
- Mfr.Part #
- LP3943ISQ/NOPB
- Manufacturer
- Texas Instruments
- Package / Case
- 24-WFQFN Exposed Pad
- Datasheet
- Download
- Description
- IC LED DRIVER PS I2C 25MA 24WQFN
- Stock
- 39,729
- In Stock :
- 39,729
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- Manufacturer :
- Texas Instruments
- Product Category :
- LED Drivers
- Height :
- 800μm
- Lead Free :
- Lead Free
- Max Input Voltage :
- 5.5V
- Max Supply Voltage :
- 5.5V
- Packaging :
- Tape and Reel (TR)
- Internal Switch(s) :
- yes
- Max Power Dissipation :
- 400mW
- Terminal Pitch :
- 0.5mm
- Supply Voltage :
- 3V
- fmax-Min :
- 0.4 MHz
- Switching Frequency :
- 400kHz
- Multiplexed Display Capability :
- No
- Min Supply Voltage :
- 2.3V
- Dimming :
- I2C, SMBus
- Operating Temperature :
- -40°C~85°C TA
- Frequency :
- 400kHz
- Number of LEDs :
- 16
- Base Part Number :
- LP3943
- Applications :
- Camera Flash
- Type :
- Power Switch
- Number of Segments :
- 16
- Min Input Voltage :
- 2.3V
- Radiation Hardening :
- No
- Mounting Type :
- Surface Mount
- Operating Supply Voltage :
- 5V
- Thickness :
- 750μm
- HTS Code :
- 8542.39.00.01
- Factory Lead Time :
- 6 Weeks
- Nominal Supply Current :
- 550μA
- Width :
- 4mm
- ECCN Code :
- EAR99
- Max Supply Current :
- 550μA
- Pbfree Code :
- yes
- Output Current :
- 25mA
- Output Characteristics :
- OPEN-DRAIN
- Power Dissipation :
- 400mW
- Topology :
- Shift Register
- Mount :
- Surface Mount
- REACH SVHC :
- No SVHC
- Package / Case :
- 24-WFQFN Exposed Pad
- Output Voltage :
- 5.5V
- Lifecycle Status :
- ACTIVE (Last Updated: 6 days ago)
- Number of Functions :
- 1
- Input Characteristics :
- Standard
- Peak Reflow Temperature (Cel) :
- 260
- Number of Pins :
- 24
- RoHS Status :
- ROHS3 Compliant
- Moisture Sensitivity Level (MSL) :
- 1 (Unlimited)
- JESD-609 Code :
- e3
- Feature :
- I2C
- Terminal Position :
- QUAD
- Low Level Output Current :
- 25mA
- Quiescent Current :
- 350μA
- Length :
- 4mm
- Current Rating :
- 25mA
- Terminal Finish :
- Matte Tin (Sn)
- Number of Terminations :
- 24
- Datasheets
- LP3943ISQ/NOPB

LED Drivers Texas Instruments LP3943ISQ/NOPB Overview
The LED Drivers Texas Instruments LP3943ISQ/NOPB is a versatile, programmable LED driver IC designed to manage multiple LEDs via a standard I2C serial interface. Its small 24-WQFN package makes it ideal for compact electronics where space is at a premium. Engineered by Texas Instruments, a leader in semiconductor solutions, this device offers precision and efficiency for driving up to 16 LEDs. This makes it perfectly suited for applications requiring diverse and dynamic lighting configurations, such as status indication and backlighting in consumer electronics, automotive interiors, and more.
LP3943ISQ/NOPB Features
The LP3943ISQ/NOPB includes multiple features that enhance its utility and performance in complex electronic systems. Key features include independent LED control, programmable blink rates, and adjustable output current, all accessible through a simple I2C interface. Additionally, its built-in thermal shutdown feature ensures safety and reliability under varying operational conditions.
LP3943ISQ/NOPB Applications
- Status Indicators: Utilized in various consumer electronics to display power status, charging states, or system alerts through multi-colored LEDs.
- Keyboard Backlighting: Provides adjustable backlighting solutions for keyboards in laptops and desktops, enhancing usability in low-light conditions.
- Automotive Interior Lighting: Can be applied in dashboard backlighting and cabin mood lighting, offering customizable settings for brightness and color.
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