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PDF IS31FL3216 Data sheet ( Hoja de datos )
| Número de pieza | IS31FL3216 | |
| Descripción | 16 CHANNELS LED DRIVER | |
| Fabricantes | ISSI | |
| Logotipo |  |
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IS31FL3216
16 CHANNELS LED DRIVER
January 2012
GENERAL DESCRIPTION
The IS31FL3216 is a fun light LED controller with an
audio modulation mode. It can store data of 8 frames
with internal RAM to play small animations
automatically.
IS31FL3216 can sample the input signal to modulate
the intensity of LEDs, or control 8 frames playing by
internal ADC block.
The LED current of each channel can be set in 256
steps by adjusting the PWM duty cycle through an I2C
interface. 8 channels can be used as GPIO ports.
IS31FL3216 is available in QFN-28 (4mm × 4mm). It
operates from 2.7V to 5.5V over the temperature range
of -40°C to +85°C.
APPLICATIONS
Mobile phones and other hand-held devices for
LED display
LED in home appliances
FEATURES
2.7V to 5.5V supply
I2C interface, automatic address increment
function
Internal RAM
Modulate LED brightness with 256 steps PWM
Each channel can be controlled independently
Auto Frame Play Mode with 8 frames
8 frames memory for animations
Audio Frame Mode with 8 frames
8 of 16 outputs not used as LED drivers can be
used as GPIO ports
8 levels of maximum intensity control
8kV HBM ESD
Over-temperature protection
-40°C to +85°C temperature range
QFN-28 (4mm × 4mm) package
TYPICAL APPLICATION CIRCUIT
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Figure 1 Typical Application Circuit
Note: The IC should be placed far away from the mobile antenna in order to prevent the EMI.
Integrated Silicon Solution, Inc. – www.issi.com
Rev.A, 12/27/2011
1
datasheet pdf - http://www.DataSheet4U.net/
1 page  
IS31FL3216
ABSOLUTE MAXIMUM RATINGS
Supply voltage, VCC
Voltage at any input pin
Current in GND terminal
Maximum junction temperature, TJMAX
Storage temperature range, TSTG
Operating temperature range, TA
ESD (HBM)
-0.3V ~ +6.0V
-0.3V ~ VCC+0.3V
1A
150°C
-65°C ~ +150°C
−40°C ~ +85°C
8kV
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. Exposure to absolute maximum rating conditions for extended periods may affect device reliability.
ELECTRICAL CHARACTERISTICS
TA = 25°C, VCC = 2.7V ~ 5.5V, unless otherwise noted. Typical values are TA = 25°C, VCC = 3.6V.
Symbol
Parameter
Condition
Min. Typ.
Max.
VCC Supply voltage
ICC Quiescent power supply current VSDB = VCC
ISD Shutdown current
VSDB = 0V or software shutdown
PWM Control Mode, VDS = 0.6V
PWM duty cycle = 0xFF
IOUT Average output current
Audio Frame Mode, VDS = 0.6V
VIN = 3Vp-p, 1kHz square wave
Audio gain = 0dB
VHR
Current sink
(when use as
headroom voltage
GPIO output ports)
IOUT
=
20mA
2.7
5.2
1
20
(Note 1)
20
(Note 1)
400
5.5
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Logic Electrical Characteristics (SDB, SDA, SCL, AD, INTB)
VIL Logic “0” input voltage
VIH Logic “1” input voltage
IIL Logic “0” input current
IIH Logic “1” input current
VCC = 2.7V
VCC = 5.5V
VIN = 0V
VIN = VCC
1.4
5
(Note 2,3)
5
(Note 2,3)
0.4
Unit
V
mA
μA
mA
mV
V
V
nA
nA
Integrated Silicon Solution, Inc. – www.issi.com
Rev.A, 12/27/2011
5
datasheet pdf - http://www.DataSheet4U.net/
5 Page 
IS31FL3216
Table 12 09h ADC Sample Rate Register
Bit D7:D0
Name
SR
Default
0000 0000
The value of ADC Sample Rate Register decides the
sample rate of ADC for Audio Frame Mode. The sample
rate could be computed using the Formula (1):
7
SR 15.625kHz / D[n] 2n
(1)
n0
Where “n” indicates the bit location in the respective
ADC Sample Rate Register.
For example: D7:D0 = 10110100
SR = 15.625kHz/(22+24+25+27)
= 105Hz
Table 13 10h~1Fh PWM Register (OUT16~OUT1)
Bit D7:D0
Name
PWM
Default
0000 0000
The PWM Registers adjusts LED luminous intensity in
256 steps.
The value of a channel’s PWM Register decides the
average output current for each output, OUT1~OUT16.
The average output current may be computed using the
Formula (2):
IOUT
I MAX
256
7
D[n] 2n
n0
(2)
Where “n” indicates the bit location in the respective
PWM Registers.
For example: D7:D0 = 10110101
IOUT = IMAX (20+22+24+25+27)/256
IMAX is set by the Lighting Effect Register (03h).
Table 14 20h~AFh Frame Register Address List
LED Control Register PWM Register
Frame 1
Frame 2
Frame 3
Frame 4
Frame 5
Frame 6
Frame 7
Frame 8
20h ~ 21h
32h ~ 33h
44h ~ 45h
56h ~ 57h
68h ~ 69h
7Ah ~ 7Bh
8Ch ~ 8Dh
9Eh ~ 9Fh
22h ~ 31h
34h ~ 43h
46h ~ 55h
58h ~ 67h
6Ah ~ 79h
7Ch ~ 8Bh
8Eh ~ 9Dh
A0h ~ AFh
Frame Registers store the data of 8 frames. Each
frame is controlled by two LED Control Registers and
sixteen PWM Registers.
The detail about the LED Control Register is shown in
Table 4, 5 and the PWM Register is shown in Table 13.
B0h Update Register
The data sent to the PWM Register will be stored in
temporary registers. A write operation of any 8-bit
value to the Update Register is required to update the
registers.
Table 15 B6h Frame Delay Register
Bit D7:D5
D4:D0
Name
Default
FDT
000
-
00000
Set the delay time between each frame in Auto Frame
Play Mode.
FDT
000
001
010
011
100
101
110
111http://www.DataSheet4U.net/
Frame Delay Time
32ms
64ms
128ms
256ms
512ms
1.024s
2.048s
4.096s
Table 16 B7h Frame Start Register
Bit D7:D5
D4:D0
Name
Default
FS
000
-
00000
Set the start frame in Auto Frame Play Mode.
FS Frame Start
000 Frame 1
001 Frame 2
010 Frame 3
011 Frame 4
100 Frame 5
101 Frame 6
110 Frame 7
111 Frame 8
For example, if FS bit sets to “011”, it plays from the
fourth frame to the eighth frame then cycled back to
the first frame.
Integrated Silicon Solution, Inc. – www.issi.com
Rev.A, 12/27/2011
11
datasheet pdf - http://www.DataSheet4U.net/
11 Page | ||
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