LP3944ISQ/NOPB Texas Instruments Integrated Circuit (Quad Flat No-Lead) In Stock
RGB/White/Blue 8-LED Fun Light Driver
- Manufacturer
- Texas Instruments
- Package
- Quad Flat No-Lead
- Pin Count
- 25
- Lifecycle
- ACTIVE
- Datasheet
- LP3944ISQ/NOPB Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $1.3007(MOQ 59)
- Temp Range
- -40.0°C to 85.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Specifications
| Pbfree Code | Yes |
| YTEOL | 15 |
| Data Input Mode | SERIAL |
| Input Characteristics | STANDARD |
| Interface IC Type | LED DISPLAY DRIVER |
| JESD-30 Code | S-XQCC-N24 |
| JESD-609 Code | e3 |
| Multiplexed Display Capability | NO |
| Number of Channels | 8 |
| Number of Functions | 1 |
| Number of Segments | 8 |
| Package Body Material | UNSPECIFIED |
| Package Equivalence Code | LCC24,.16SQ,20 |
| Package Shape | SQUARE |
| Package Style | CHIP CARRIER, HEAT SINK/SLUG, VERY THIN PROFILE |
| Peak Reflow Temperature (Cel) | 260 |
| Qualification Status | Not Qualified |
| Supply Current-Max | 0.55mA |
| Supply Voltage-Max | 5.5V |
| Supply Voltage-Min | 2.3V |
| Supply Voltage-Nom | 5V |
| Surface Mount | YES |
| Temperature Grade | INDUSTRIAL |
| Terminal Finish | Tin (Sn) |
| Terminal Form | NO LEAD |
| Terminal Pitch | 0.5mm |
| Terminal Position | QUAD |
| Time@Peak Reflow Temperature-Max (s) | 30 |
| fmax-Min | 0.4MHz |
| ## LP3944ISQ/NOPB Alternates Showing results | Image |
| Package | Quad Flat No-Lead |
Compliance & Regulatory
| RoHS Status | Compliant |
| Moisture Sensitivity Level | MSL 3 |
| ECCN | EAR99 |
| HTS Code | 8542.39.00.90 |
Alternate & Equivalent Parts
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
What is the LP3944ISQ/NOPB and what does it do?
The LP3944ISQ/NOPB is an 8-channel LED driver from Texas Instruments controlled via I2C. It allows up to 8 LEDs to be individually switched on/off or placed in one of two programmable blink groups. Each channel sinks up to 25mA, making it suitable for indicators and small displays in portable and embedded systems.
What supply voltage does the LP3944ISQ/NOPB require?
The LP3944ISQ/NOPB operates from a 1.8V to 5.5V supply, making it compatible with both 3.3V and 5V logic systems. This wide range allows it to interface directly with modern microcontrollers and SoCs without level-shifting.
What package is the LP3944ISQ/NOPB and how many pins does it have?
It comes in a WSON-10 package (10-pin, 3mm × 3mm), a small leadless SMD package suited for compact board layouts. The 10-pin footprint provides all I2C, power, and LED output connections.
What are suitable alternates for the LP3944ISQ/NOPB?
The PCA9551 (NXP) is a pin-compatible 8-bit I2C LED driver with similar blink control. The LP3943 from Texas Instruments is also closely related, offering 16-channel output for higher-density LED arrays. Both operate on comparable voltage rails and I2C interfaces.
Is the LP3944ISQ/NOPB RoHS compliant and what is its lifecycle status?
Yes, the /NOPB suffix indicates the device is lead-free and RoHS compliant. The LP3944ISQ/NOPB is in active production status at Texas Instruments, ensuring continued availability and supply chain support.
Related Guides
TPS61291DRVR Selection Guide: Low-Quiescent-Current Boost Converters for IoT and Wearables
How to select the TPS61291DRVR and low-Iq boost converters for IoT, wearables, and coin-cell designs. Compares specs, packages, and alternatives from TI, ADI, and Microchip.
May 13, 2026
TMS5704357BZWTQQ1 Selection Guide: Choosing the Right TMS570 Automotive MCU Variant
Compare TMS570 automotive MCU variants by ASIL level, flash, package, and peripherals. Find the right fit from entry-level LQFP to the ASIL-D TMS5704357BZWTQQ1.
May 13, 2026
TI Hercules TMS5704357BZWTQQ1 Design Guide for Automotive ASIL-D and Industrial Functional Safety
Complete integration guide for the TI Hercules TMS5704357BZWTQQ1 dual-core lockstep Cortex-R5F MCU: lockstep CPU, ECC RAM, FlexRay/CAN-FD, and ASIL-D pitfalls.
May 12, 2026
PTN78000WAH Selection Guide: Choosing the Right 1.5 A 36 V Step-Down Power Module
Compare PTN78000WAH against PTN78000WAS, PTN78060WAH, and other 1.5A 36V step-down modules. Covers package, current rating, efficiency, and drop-in replaceability.
May 12, 2026
Why Buy from FindMyChip
About Texas Instruments
Texas Instruments (TI) is a global semiconductor company headquartered in Dallas, Texas. TI designs and manufactures analog and embedded processing chips used in industrial, automotive, consumer, communications, and enterprise systems.
More from Texas Instruments
TLC7528CFNR
Plastic Leaded Chip Carrier
Integrated Circuit
LM63615DQPWPRQ1
Small Outline Packages
Integrated Circuit
SN74LS155ADR
Small Outline Packages
Integrated Circuit
SN65MLVD203DG4
Small Outline Packages
Integrated Circuit
TPS24710DGS
Small Outline Packages
Integrated Circuit
TPS2492PWR
Small Outline Packages
Integrated Circuit
| Qty. | Unit Price | Ext. Price |
|---|---|---|
| 59+ | $3.3988 | $200.53 |
| 77+ | $3.2855 | $252.98 |
| 102+ | $2.9456 | $300.45 |
| 3000+ | $1.3316 | $3994.65 |
| 5000+ | $1.3120 | $6560.25 |
| 7000+ | $1.3007 | $9104.55 |
In Stock · 24h Response · Worldwide Shipping
Response within 24 hours · Worldwide shipping
“The anti-counterfeit verification gave us confidence we'd never had with other China suppliers.”