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See Technical Specifications

LP55231SQX/NOPB +BOM

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

Manufacturer:

TI
Mfr.Part #:

LP55231SQX/NOPB
Datasheet:

LP55231SQX/NOPB Datasheet (PDF)
Pbfree Code:

Yes
Part Life Cycle Code:

Active
Reach Compliance Code:

compliant
ECCN Code:

EAR99
EDA/CAD Models:

Request Free CAD Models for LP55231SQX/NOPB

Email: [email protected]

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LP55231SQX/NOPB General Description

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.

Key Features

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; I_VDD = 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

Specifications

Source Content uid	LP55231SQX/NOPB	Pbfree Code	Yes
Part Life Cycle Code	Active	Reach Compliance Code	compliant
ECCN Code	EAR99	HTS Code	8542.39.00.01
Data Input Mode	SERIAL	Input Characteristics	STANDARD
Interface IC Type	LED DISPLAY DRIVER	JESD-30 Code	S-PQCC-N24
JESD-609 Code	e3	Length	4 mm
Moisture Sensitivity Level	1	Multiplexed Display Capability	YES
Number of Channels	9	Number of Functions	1
Number of Segments	9	Number of Terminals	24
Operating Temperature-Max	85 °C	Operating Temperature-Min	-30 °C
Output Characteristics	CONSTANT-CURRENT	Peak Reflow Temperature (Cel)	260
Qualification Status	Not Qualified	Seated Height-Max	0.8 mm
Supply Current-Max	0.95 mA	Supply Voltage-Max	5.5 V
Supply Voltage-Min	2.7 V	Supply Voltage-Nom	3.6 V
Surface Mount	YES	Temperature Grade	OTHER
Terminal Finish	MATTE TIN	Terminal Form	NO LEAD
Terminal Pitch	0.5 mm	Terminal Position	QUAD
Time@Peak Reflow Temperature-Max (s)	30	Width	4 mm
fmax-Min	0.4 MHz	Product Category	LED Lighting Drivers
Series	LP55231	Mounting Style	SMD/SMT
Number of Outputs	9 Output	Output Current	25.5 mA
Input Voltage, Min	2.7 V	Input Voltage, Max	5.5 V
Topology	Charge Pump	Operating Frequency	1.25 MHz
Output Voltage	3.6 V to 5.5 V	Minimum Operating Temperature	- 30 C
Maximum Operating Temperature	+ 85 C	Features	I2C Control, Charge Pump
Input Voltage	2.7 V to 5.5 V	Operating Supply Voltage	2.7 V to 5.5 V
Product Type	LED Lighting Drivers	Factory Pack Quantity	4500
Subcategory	Driver ICs	Supply Current - Max	750 uA
Unit Weight	0.001376 oz