Texas Instruments LP3944ISQX LED Drivers
IC LED DRIVER PS DIM 25MA 24WQFN
Same model may have multiple batches, images only for reference.
Manufacturer
Part Number (MPN)
LP3944ISQX
Detailed Description
IC LED DRIVER PS DIM 25MA 24WQFN
Package
24-WFQFN Exposed Pad
Key Features
Package / Case: 24-WFQFN Exposed Pad; Mounting Type: Surface Mount
Lifecycle Status
Obsolete
RoHS State
RoHS Compliant
Datasheet
LP3944ISQX Datasheet
Quick Jump:
Technical Specifications
Texas Instruments LP3944ISQX LED Drivers technical specifications.
General
Package / Case
24-WFQFN Exposed Pad
Mounting Type
Surface Mount
Operating Temperature
-40°C ~ 85°C (TA)
Type
Power Switch
Internal Switch S
Yes
Current Output Channel
25mA
Number of Outputs
8
Topology
Shift Register
Voltage Supply Max
5.5V
Voltage Supply Min
2.3V
Alternate Parts Comparison (LP3944ISQX vs LP8556SQX-E00/NOPB vs LP8556SQ-E09/NOPB vs LP55231SQE/NOPB)
Side-by-side technical parameter comparison of related primary models in this product family.
| This Part | Alternate Parts | Alternate Parts | Alternate Parts | |
|---|---|---|---|---|
| Package / Case | 24-WFQFN Exposed Pad | 24-WFQFN Exposed Pad | 24-WFQFN Exposed Pad | 24-WFQFN Exposed Pad |
| Mounting Type | Surface Mount | Surface Mount | Surface Mount | Surface Mount |
| Operating Temperature | -40°C ~ 85°C (TA) | -30°C ~ 85°C (TA) | -30°C ~ 85°C (TA) | -30°C ~ 85°C (TA) |
| Applications | Camera Flash | Backlight | Backlight | Backlight |
| Current Output Channel | 25mA | 25mA | 25mA | 25.5mA |
| Dimming | I²C, SMBus | PWM | PWM | PWM |
| Internal Switch S | Yes | Yes | Yes | Yes |
| Number of Outputs | 8 | 5 | 6 | 9 |
| Topology | Shift Register | Step-Up (Boost) | Step-Up (Boost) | Switched Capacitor (Charge Pump) |
| Type | Power Switch | DC DC Regulator | DC DC Regulator | DC DC Regulator |
| Voltage Supply Max | 5.5V | 20V | 20V | 5.5V |
| Voltage Supply Min | 2.3V | 2.7V | 2.7V | 2.7V |
| Action |
More Parts in LED Drivers
Browse additional parts from the same category, grouped by series, package type, and manufacturer. These are catalog suggestions — not verified pin-compatible alternates.