Datasheet Texas Instruments LP3943
| Manufacturer | Texas Instruments |
| Series | LP3943 |
16 channel RGB/White LED driver with independent string control via SMBUS/I2C
Datasheets
LP3943 16-Channel RGB, White-LED Driver With Independent SMBUS/I2C String Control datasheet
PDF, 985 Kb, Revision: D, File published: Nov 4, 2016
Extract from the document
Prices
Status
| LP3943ISQ | LP3943ISQ/NOPB | LP3943ISQX/NOPB | |
|---|---|---|---|
| Lifecycle Status | NRND (Not recommended for new designs) | Active (Recommended for new designs) | Active (Recommended for new designs) |
| Manufacture's Sample Availability | No | Yes | No |
Packaging
| LP3943ISQ | LP3943ISQ/NOPB | LP3943ISQX/NOPB | |
|---|---|---|---|
| N | 1 | 2 | 3 |
| Pin | 24 | 24 | 24 |
| Package Type | RTW | RTW | RTW |
| Industry STD Term | WQFN | WQFN | WQFN |
| JEDEC Code | S-PQFP-N | S-PQFP-N | S-PQFP-N |
| Package QTY | 1000 | 1000 | 4500 |
| Carrier | SMALL T&R | SMALL T&R | LARGE T&R |
| Device Marking | 3943SQ | 3943SQ | 3943SQ |
| Width (mm) | 4 | 4 | 4 |
| Length (mm) | 4 | 4 | 4 |
| Thickness (mm) | .75 | .75 | .75 |
| Pitch (mm) | .5 | .5 | .5 |
| Max Height (mm) | .8 | .8 | .8 |
| Mechanical Data | Download | Download | Download |
Parametrics
| Parameters / Models | LP3943ISQ | LP3943ISQ/NOPB | LP3943ISQX/NOPB |
|---|---|---|---|
| Number of Channels | 16 | 16 | 16 |
| Iout(Max), A | 0.2 | 0.2 | 0.2 |
| Iq(Typ), mA | 0.35 | 0.35 | 0.35 |
| LED | 16 | 16 | 16 |
| LED Configuration | Parallel | Parallel | Parallel |
| LED Current Per Channel, mA | 25 | 25 | 25 |
| Operating Temperature Range, C | -40 to 85 | -40 to 85 | -40 to 85 |
| Package Group | WQFN | WQFN | WQFN |
| Package Size: mm2:W x L, PKG | 24WQFN: 16 mm2: 4 x 4(WQFN) | 24WQFN: 16 mm2: 4 x 4(WQFN) | 24WQFN: 16 mm2: 4 x 4(WQFN) |
| Peak Efficiency, % | 100 | 100 | 100 |
| Program Memory | No | No | No |
| Programmable Ramp Control | No | No | No |
| Rating | Catalog | Catalog | Catalog |
| Shutdown Current(Typ), uA | 2 | 2 | 2 |
| Special Features | I2C Control | I2C Control | I2C Control |
| Topology | Linear | Linear | Linear |
| Vin(Max), V | 5.5 | 5.5 | 5.5 |
| Vin(Min), V | 2.3 | 2.3 | 2.3 |
| Vout(Max), V | 5.5 | 5.5 | 5.5 |
| Vout(Min), V | -0.5 | -0.5 | -0.5 |
Eco Plan
| LP3943ISQ | LP3943ISQ/NOPB | LP3943ISQX/NOPB | |
|---|---|---|---|
| RoHS | See ti.com | Compliant | Compliant |
Application Notes
- AN-1715 LP3943/LP3944 as a GPIO Expander (Rev. A)PDF, 138 Kb, Revision: A, File published: Apr 30, 2013
This application report describes how to use LP3943/44 as a general-purpose input/output (GPIO)expander. It is recommended that circuit data sheets are read first and used in conjunction with thisdocument.
Model Line
Series: LP3943 (3)
Manufacturer's Classification
- Semiconductors> Power Management> LED Driver> Indicator/RGBW
