LP55231SQX/NOPB
Active9 CHANNEL RGB / WHITE LED DRIVER WITH INTERNAL PROGRAM MEMORY AND INTEGRATED CHARGE PUMP - WQFN
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LP55231SQX/NOPB
Active9 CHANNEL RGB / WHITE LED DRIVER WITH INTERNAL PROGRAM MEMORY AND INTEGRATED CHARGE PUMP - WQFN
Deep-Dive with AI
Technical Specifications
Parameters and characteristics for this part
| Specification | LP55231SQX/NOPB |
|---|---|
| Applications | Backlight |
| Current - Output / Channel | 25.5 mA |
| Dimming | PWM |
| Frequency | 1.25 MHz |
| Internal Switch(s) | True |
| Mounting Type | Surface Mount |
| Number of Outputs | 9 |
| Operating Temperature [Max] | 85 °C |
| Operating Temperature [Min] | -30 °C |
| Package / Case | 24-WFQFN Exposed Pad |
| Supplier Device Package | 24-WQFN (4x4) |
| Topology | Switched Capacitor (Charge Pump) |
| Type | DC DC Regulator |
| Voltage - Supply (Max) | 5.5 V |
Pricing
Prices provided here are for design reference only. For realtime values and availability, please visit the distributors directly
| Distributor | Package | Quantity | $ | |
|---|---|---|---|---|
| Digikey | Cut Tape (CT) | 1 | $ 2.16 | |
| 10 | $ 1.94 | |||
| 25 | $ 1.83 | |||
| 100 | $ 1.56 | |||
| 250 | $ 1.47 | |||
| 500 | $ 1.28 | |||
| 1000 | $ 1.06 | |||
| Digi-Reel® | 1 | $ 2.16 | ||
| 10 | $ 1.94 | |||
| 25 | $ 1.83 | |||
| 100 | $ 1.56 | |||
| 250 | $ 1.47 | |||
| 500 | $ 1.28 | |||
| 1000 | $ 1.06 | |||
| Tape & Reel (TR) | 4500 | $ 0.99 | ||
| 9000 | $ 0.95 | |||
| Texas Instruments | LARGE T&R | 1 | $ 1.63 | |
| 100 | $ 1.34 | |||
| 250 | $ 0.96 | |||
| 1000 | $ 0.73 | |||
Description
General part information
LP55231 Series
The LP55231 is a 9-channel LED driver designed to produce lighting effects for mobile devices. A high-efficiency charge pump enables LED driving over full Li-Ion battery voltage range. The device is equipped with an internal program memory, which allows operation without processor control.
The LP55231 has an I2C-compatible control interface with four pin-selectable addresses. The INT pin can be used to notify processor when a lighting sequence has ended (interrupt function). Also, the device has a trigger input interface, which allows synchronization, for example, between multiple LP55231 devices. Excellent efficiency is maintained over a wide operating range by autonomously selecting the best charge pump gain based on LED forward voltage requirements. The device is able to automatically enter power-save mode when LED outputs are not active, thus lowering idle current consumption down to 10 µA (typical). Only four small and low-cost ceramic capacitors are required.
The LP55231 is a 9-channel LED driver designed to produce lighting effects for mobile devices. A high-efficiency charge pump enables LED driving over full Li-Ion battery voltage range. The device is equipped with an internal program memory, which allows operation without processor control.
Documents
Technical documentation and resources
