IS31FL3189-QFLS2-TR ISSI, IS31FL3189-QFLS2-TR Datasheet

no-image

IS31FL3189-QFLS2-TR

Manufacturer Part Number
IS31FL3189-QFLS2-TR
Description
LED Lighting Drivers Audio Modulated Led Drvr
Manufacturer
ISSI
Datasheet

Specifications of IS31FL3189-QFLS2-TR

Maximum Supply Current
1 mA
Output Current
17.5 mA, 28.9 mA, 38.9 mA, 46.7 mA, 66.5 mA
Maximum Operating Temperature
+ 85 C
Mounting Style
SMD/SMT
Package / Case
QFN-20
Factory Pack Quantity
2500
IS31FL3189
AUDIO MODULATED LED DRIVER
GENERAL DESCRIPTION
The IS31FL3189 is an LED driver with an audio
synchronization mode that virtually eliminates the need
of real time software processing for LED lighting
effects.
The OUT0~9 can be operated at 4 basic modes:
Audio synchronization mode, top-down scan mode,
constant current mode, combination of audio
synchronization and top-down scan mode.
Each of the OUT0~2, OUT7~9 is a constant current
sink pulse width modulated in 256 steps, featuring One
Shot Programming mode and Interface Intensity
Control mode for RGB lighting effects. The output
current is user selectable to be one of 5 levels, 17.5mA,
28.9mA, 38.9mA, 46.7mA or 66.5mA (typical). At
38.9mA the IS31FL3189 outputs require only 0.4V of
headroom voltage.
In One Shot Programming mode, the timing
characteristics for output current - current ramping up,
holding, ramping down and off time, can be adjusted
individually so that each output can independently
maintain a pre-established pattern without requiring
any additional interface activity, thus saving valuable
system resources.
In Interface Intensity Control mode, the PWM duty
cycle of each output can be independently
programmed and controlled in 256 steps to simplify
color mixing.
APPLICATIONS
TYPICAL APPLICATION CIRCUIT
Integrated Silicon Solution, Inc. – www.issi.com
Rev.A, 11/14/2011
Cellular phones
MP3/MP4/CD/minidiskplayers
Digital picture frame/toys
Figure 1 Typical Application Circuit
FEATURES
10 outputs each with 38.9mA at 0.4V headroom.
2 independently controlled, 6 channels of 256
steps PWM RGB LED drivers with programmable
brightness and blinking patterns for LED’s lighting
effects
Fully programmable operating modes:
Audio synchronization mode
Audio synchronization +Top-down scan mode
Top-down scan mode
Constant current mode
One Shot Programming mode with Gamma
correction
Interface intensity control mode with 256 steps
current level setting for RGB lighting effects
RGB blink/not blink with audio mode
Each outputs enable/disable individually
Programmable parameter setting:
Audio gain setting
Top-down scan mode output current setting
Top-down scan mode scan rate setting
RGB mode output current setting
Programmable Output Current Level settings
For Anode-common LEDs
VDD Range: 3.0V to 5.5V
Package: QFN-20, 3mm × 3mm
November 2011
1

Related parts for IS31FL3189-QFLS2-TR

IS31FL3189-QFLS2-TR Summary of contents

Page 1

... IS31FL3189 AUDIO MODULATED LED DRIVER GENERAL DESCRIPTION The IS31FL3189 is an LED driver with an audio synchronization mode that virtually eliminates the need of real time software processing for LED lighting effects. The OUT0~9 can be operated at 4 basic modes: Audio synchronization mode, top-down scan mode, constant current mode, combination of audio synchronization and top-down scan mode ...

Page 2

... IS31FL3189 PIN CONFIGURATION Package Pin Configurations (Top View) QFN-20 PIN DESCRIPTION No. Pin Description 1 SDB Shutdown, pull to GND for shutdown mode. 2 VDD Power supply. 3~7, 9~13 OUT0 ~ OUT9 LED outputs. 8,17 GND Ground. 14 Chip select, active is low SDI Input serial data for data shift resister. ...

Page 3

... IS31FL3189 ORDERING INFORMATION Industrial Range: -40°C to +85°C Order Part No. Package IS31FL3189-QFLS2-TR QFN-20, Lead-free Integrated Silicon Solution, Inc. – www.issi.com Rev.A, 11/14/2011 QTY/Reel 2500 3 ...

Page 4

... IS31FL3189 ABSOLUTE MAXIMUM RATINGS Supply voltage Voltage at any input pin Junction temperature, T JMAX Storage temperature range, Tstg Operating temperature ratings Junction temperature Solder Information, Vapor phase (60s) Infrared (15s) Note: Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only and functional operation of the device at these or any other condition beyond those indicated in the operational sections of the specifications is not implied ...

Page 5

... IS31FL3189 DIGITAL INPUT SWITCHING CHARACTERISTICS Symbol Parameter f SCK Frequency CK t SCK High Time CH t SCK Low Time CL t SDI SetupTime DH t SDI High Time DS _____ SCK Rise Setup Time CSS _____ t CS Rising Edge to SCK Rising Edge CSCP _____ t CS ...

Page 6

... IS31FL3189 SPI INTERFACE The IS31FL3189 contains a 16bit SPI interface to access the internal data and control registers of the device (see Registers Definitions). This module is used to receive the commands transmitted by MCU. The 16-bit serial interface uses three pins, SDI, SCK and to enter data, Table 1 shows the functions of these CS three pins ...

Page 7

... IS31FL3189 REGISTERS DEFINITION The IS31FL3189 device contains 32 Registers, which are listed in Table 3. Communication to the IS31FL3189 is via the serial interface. The command consists of an 8-bit address word followed by an 8-bit data word. Table 3 Register Function Map Address Name 00h Configuration 01h Audio input gain ...

Page 8

... Table 5 Audio Input Gain Register (01h) Bit D7:D5 D4:D2 Name AG RC Default 000 000 The Audio Input Gain Register sets the audio input gain of IS31FL3189 and the current of scan mode Audio Gain Adjust Bits AG 000 0dB 001 3dB Integrated Silicon Solution, Inc. – www.issi.com Rev.A, 11/14/2011 010 6dB ...

Page 9

... Default the outputs each with 38.9mA current capability, they are adjustable. The RGB current register allows the maximum output current to be scaled as indicated in Table above. The IS31FL3189 provides for a maximum current ranging as high as 66.5mA and as low as 28.9mA. Care must be taken so as not to exceed the maximum allowable power dissipation for the device ...

Page 10

... IS31FL3189 Table 9 OUTx_T0 Register (0Ah~ 0Fh) Bit D7:D4 Name T0 Default 0000 T0 is the holdoff delay before the waveform (described by the values of T1~T4) begins as shown in Figure 3. The holdoff delay occurs only after 1) any 8-bit value is written to the update register (0Ch turn on the One Shot Programming mode by programming the ...

Page 11

... When IS31FL3189 is working in top-down scan mode, setting D4 of Top-down register to “1”, the IS31FL3189 can keep the output always turned on, and the output current range can be set by writing the RC register (D4:D2 of Audio Input Gain Register(01h)). ...

Page 12

... Top-down Scan mode, the constant current output is programmed by the Audio input gain register bit D4~D2. TOP-DOWN SCAN MODE (1) The IS31FL3189 offers a special lighting effect by controlling the duty cycle and timing of each channel. When RGB mode is enabled, OUT0~OUT2 and OUT7~OUT9 are controlled by RGB mode register bytes, and OUT3~OUT6 will operate as shown below in figure 5 when Configuration register D3~D1 are set low ...

Page 13

... D4:D2 of Audio Input Gain Register. AUDIO SYNCHRONIZATION PLUS TOP-DOWN SCAN MODE When initially powering the the IS31FL3189 is configured to operate in Audio synchronization plus Top-down Scan mode, the output current is programmed as described in Audio synchronization mode section, and the Top-down scan rate is set by the Configuration register D3~D1 ...

Page 14

... IS31FL3189 from the maximum value to zero. It consists of 32 steps and the PWM duty cycle is reducing at each step as shown in Table 17. T4 the time delay before repeating the next cycle. By programming different values of T0~T4 for the different outputs, OUT0~OUT2, OUT7~OUT9, many different combinations LED effects can be created. ...

Page 15

... IS31FL3189 CLASSIFICATION REFLOW PROFILES Profile Feature Preheat & Soak Temperature min (Tsmin) Temperature max (Tsmax) Time (Tsmin to Tsmax) (ts) Average ramp-up rate (Tsmax to Tp) Liquidous temperature (TL) Time at liquidous (tL) Peak package body temperature (Tp)* Time (tp)** within 5°C of the specified classification temperature (Tc) Average ramp-down rate (Tp to Tsmax) Time 25° ...

Page 16

... IS31FL3189 TAPE AND REEL INFORMATION Integrated Silicon Solution, Inc. – www.issi.com Rev.A, 11/14/2011 16 ...

Page 17

... IS31FL3189 PACKAGE INFORMATION QFN-20 Note: All dimensions in millimeters unless otherwise stated. Integrated Silicon Solution, Inc. – www.issi.com Rev.A, 11/14/2011 17 ...

Related keywords