Key Selection Information
| Selection Parameter | Confirmed Information |
|---|---|
| Channels | 24 constant-current sinks / eight RGB groups |
| PWM | 12-bit, 29 kHz per channel |
| Current | 25.5 mA/channel full VCC; up to 35 mA at VCC ≥3.3 V |
| Supply | 2.7 V to 5.5 V |
| Power Saving | 10 µA typical all-off; 1 µA max shutdown |
| Control | I²C 400 kHz, 4 hardware addresses, broadcast/autoincrement |
| Visual Features | Per-channel color plus per-RGB-module brightness, phase shifting |
| Exact Package / Packing | VQFN (RSM), 32 pins; 3000-piece large reel |
Product Overview
LP5024RSMR extends the LP50xx architecture to 24 outputs, enough for eight RGB indicators from one device. The value is channel density plus firmware-friendly color/brightness control, not simply more PWM counters.
At 24 channels, simultaneous LED edge current can become a supply-noise problem; integrated phase shifting helps distribute transitions. Board copper and LED supply droop should still be checked at worst-case all-channels-on current.
The 4 mm VQFN packages more outputs in little area, but dense LED-current routing and exposed-pad solder quality become more important than with leaded drivers.
For related devices, see HKEQGOO’s LED Drivers ICs category.
Technical Specifications
| Parameter | Verified Information |
|---|---|
| Manufacturer | Texas Instruments |
| Exact MPN | LP5024RSMR |
| Channels | 24 constant-current sinks / eight RGB groups |
| PWM | 12-bit, 29 kHz per channel |
| Current | 25.5 mA/channel full VCC; up to 35 mA at VCC ≥3.3 V |
| Supply | 2.7 V to 5.5 V |
| Power Saving | 10 µA typical all-off; 1 µA max shutdown |
| Control | I²C 400 kHz, 4 hardware addresses, broadcast/autoincrement |
| Visual Features | Per-channel color plus per-RGB-module brightness, phase shifting |
| Exact Package / Packing | VQFN (RSM), 32 pins; 3000-piece large reel |
| Manufacturer Status | Active / Production |
| Part Marking | LP5024 |
Functional Highlights
Eight RGB zones reduce I²C device count
A single device can drive a complete multi-zone status ring or HMI cluster while broadcast/autoincrement reduces transaction overhead.
Peak LED-supply current grows with channel density
Constant-current accuracy does not guarantee a stiff LED rail; supply distribution and thermal rise must be sized for all active sinks.
Design Considerations
- Calculate maximum simultaneous sink current and package/board dissipation.
- Use autoincrement/broadcast for animation efficiency instead of many single-register writes.
- Qualify RSM exposed-pad soldering and LED-current return routing.
Product Status and Exact Order Code
Manufacturer status: Active / Production
Texas Instruments lists LP5024RSMR as Active / Production; VQFN (RSM), 32 pins; 3000-piece large tape and reel; −40°C to +125°C.
Related Engineering Resources
Quality & Verification Support
Third-party inspection or testing can be arranged according to customer requirements. Testing fees are borne by the buyer. Additional verification requirements can be discussed before shipment. After an order is placed, physical product, label, packaging, and Date Code photos may be provided where appropriate.
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