text.skipToContent text.skipToNavigation

LP55231SQE/NOPB ACTIVE

9 channel RGB / White LED driver with internal program memory and integrated charge Pump - WQFN

US ECCN: EAR99 US/Local Export Classification Number

Inventory: 8,867  
 

Quality information

RoHS Yes
REACH Yes
Lead finish / Ball material SN
MSL rating / Peak reflow Level-1-260C-UNLIM
Quality, reliability
& packaging information

Information included:

  • RoHS
  • REACH
  • Device marking
  • Lead finish/Ball material
  • MSL rating/Peak reflow
  • MTBF/FIT estimates
  • Material content
  • Qualification summary
  • Ongoing reliability monitoring
View or download

Packaging information

Package | Pins Package qty | Carrier: Operating temperature range (°C)
WQFN (RTW) | 24 250 | SMALL T&R
-30 to 85
Package | Pins WQFN (RTW) | 24
Package qty | Carrier: 250 | SMALL T&R
Operating temperature range (°C) -30 to 85
View TI packaging information

Features for the LP55231

  • Three Independent Program Execution Engines, 9 Programmable Outputs With 25.5-mA Full-Scale Current, 8-Bit Current Setting Resolution and
    12-Bit PWM Control Resolution
  • Adaptive High-Efficiency 1×/1.5× Fractional Charge Pump - Efficiency up to 94%
  • LED Drive Efficiency Up to 93%
  • Charge Pump With Soft Start
  • Overcurrent and Short-Circuit Protection
  • Built-in LED Test
  • 200-nA Typical Standby Current
  • Automatic Power Save Mode; IVDD = 10 µA (Typical)
  • Two-Wire I2C-Compatible Control Interface
  • Flexible Instruction Set
  • Large SRAM Program Memory
  • Small Application Circuit
  • Source (High-Side) Drivers
  • Architecture Supports Color Control

Description for the LP55231

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.

For all available packages, see the orderable addendum at the end of the data sheet.

Pricing


Qty Price (USD)
1-99 1.7
100-249 1.404
250-999 1.009
1,000+ 0.759

Additional package qty | carrier options

Package qty | Carrier 4,500 | LARGE T&R
Inventory 18,000
Qty | Price (USD) 1ku | 0.66 1-99 1.478 100-249 1.221 250-999 0.877 1,000+ 0.66
Custom reel may be available