LP5562 Datasheet, PDF (1/52 Pages) Texas Instruments – Programmable Lighting Sequences

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LP5562
SNVS820A – APRIL 2013 – REVISED SEPTEMBER 2015
LP5562 Four-Channel LED Driver With Programmable Lighting Sequences
1 Features
•1 Four Independently Programmable LED Outputs
With 8-Bit Current Setting (From 0 mA to 25.5 mA
With 100-μA Steps) and 8-Bit PWM Control
• Typical LED Output Saturation Voltage 60 mV and
Current Matching 1%
• Flexible PWM Control for LED Outputs
• Automatic Power-Save Mode With External Clock
• Three Program Execution Engines With Flexible
Instruction Set
• Autonomous Operation With Program Execution
Engines
• SRAM Program Memory for Lighting Pattern
Programs
• DSBGA 12-Pin Package, 0.4-mm Pitch
2 Applications
• Fun Lights
• Indicator Lights
• Keypad RGB Backlighting and Phone Cosmetics
3 Description
The LP5562 is a four-channel LED driver designed to
produce variety of lighting effects. The device has a
program memory for creating variety of lighting
sequences. When the program memory has been
loaded, the LP5562 can operate independently
without processor control.
The LP5562 is able to automatically enter power save
mode, when LED outputs are not active and thus
lowering current consumption.
Four independent LED channels have accurate
programmable current sinks, from 0 mA to 25.5 mA
with 100-μA steps and flexible PWM control. Each
channel can be configured into each of the three
program execution engines. Program execution
engines have program memory for creating desired
lighting sequences with PWM control.
The LP5562 has four pin-selectable I²C addresses.
This allows connecting up to four parallel devices in
one I²C bus. The device requires only one small, low-
cost ceramic capacitor.
Device Information⁽¹⁾
PART NUMBER
PACKAGE
BODY SIZE (MAX)
LP5562
DSBGA (12)
1.648 mm × 1.248 mm
(1) For all available packages, see the orderable addendum at
the end of the data sheet.
Typical Application Diagram
C_IN
1 2F
MCU
VDD
SCL
SDA
EN/VCC
CLK_32K
LP5562
ADDR_SEL0
ADDR_SEL1
GND
VDD
RGB LED
0...25.5 mA/LED
R
G
B
WLED
1
An IMPORTANT NOTICE at the end of this data sheet addresses availability, warranty, changes, use in safety-critical applications,
intellectual property matters and other important disclaimers. PRODUCTION DATA.