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Etek Microelectronics
ET6034A
16 LED
ET6034A 128 LED , 16 LED , 3~40mA 。ET6034A I2C ,, 。 128 , 0%~190%。OUT0~5、OUT10~15 LED ,, RGB 。
16
:<±1.5%(); :<±3%()。 , 128(:0%~190%)
:3~40 mA I2C,4 RGB :3.3V/5V : QFN24(ET6034AY)
Rev 1.2 2011-11-10 1/10
ET6034A
1,7
2
3 4 5 6 8~23 24
QFN24(ET6034AY)
NC
R-EXT
VDD GND SDI SCL OUT0~OUT15 ADDR
; 。 3.3V/5V 。 。 I2C 。 I2C 。 。
Rev 1.2 2011-11-10 2/10
ET6034A
1.I2C
MCU SDA SCL ET6034A 。SDA SCL 。
。
SCL ,SDA 。 SCL , SDA 。 ()
SCL ,SDA , SCL ,SDA 。
8 。。 MSB。
, SDA ,,ET6034A SDA 。
SDA
MSB SCL
S or RS
123
Start or Repeat start
67
I2C
:ACK= MSB=
S= RS= P=
=400KBITS/S
Restart: SDA
ET6034A ,
ADDR VDD
4EH()
GND
46H()
SCL 4AH()
SDA 4CH()
ACK
89
RS or P
ACK
Stop or Repeat start
Rev 1.2 2011-11-10 3/10
ET6034A
I2C ():
() =01100110b ACK= = addres(xxx + 5 addre) ACK= 1=( cmd1) ACK= …………… n=( cmdn) ACK= 2.
Rev 1.2 2011-11-10 4/10
ET6034A
1
Addr: 00h
Addr
Bit
Bit Name
00H 0 shutdown 7:1 x
Default Access 1b W xx
Reset Register Description
0b 1b
Don’t Care
2 LED
Addr: 00h
LED enbale Register
Addr Bit Bit Name Default Access
Description
RGB0 (LED0LED2)
0
rgb0_oe
1b
W
0b
1b
RGB1 (LED3LED5)
1
rgb1_oe
1b
W
0b
1b
LED (LED6LED7)
2
led67_oe
1b
W
0b
1b 01H LED (LED8LED9)
3
led89_oe
1b
W
0b
1b
RGB2 (LED10LED12)
4
rgb2_oe
1b
W
0b
1b
RGB3 (LED13LED15)
5
rgb3_oe
1b
W
0b
1b
7:6 xx xx xx xx
Don’t Care
:(1) 3 LED (),, RGBn ,n 03,RGB
(2) 2 , 3 LED (), LED
3 ()
Addr: 0213h
Fix Brightness Register
Addr
Bit Bit Name Default Access
Description
()
02H09H, 0CH13H
6:0
fixbrit_ledn
00h
W
00h 01h
……
()
Rev 1.2 2011-11-10 5/10
ET6034A
7FH
7 x xx
Don’t Care
:(1) n 015
(2) LEDn LED0LED15,
3. ET6034A ,,,。 ET6034A
: 1) ±1.5%(),±3%()。 2) ,。 LED (Vf) 。
4. , Rext (IOUT)。
Iout /mA
50 45 40 35 30 25 20 15 10
5 0
0
1
Iout
2 34 R-ext/KΩ
R-ext R-EXT , Ω 。 ( 1010010): VR-EXT = 1.24V;IOUT = (VR-EXT / Rext )×12.5 VR-EXT R-EXT ,Rext R-EXT 。 1240Ω, 12.5mA()。
(DA6~DA0): 0000000( 1010010 ) (0000000~1000000), 0%~64%, 65 。 (1000001~1111111), 66%~190%, 63 。 (:D 6 10 ): :=D/100 :=(2D+64)/100 :
Rev 1.2 2011-11-10 6/10
ET6034A
(VDD=5V ,Ta=25℃)
1 ()
VDD IOUT IOH IOUT1 dIOUT1
VDD VIN IOUT FCLK IGND Topr Tstg
0~5.5
-0.4~VDD +0.4 +40 400
+1000 -40~+85 -55~+150
V V mA kHz mA ℃ ℃
-
VOH =VDD
VDS =1.0V
Rext =1240Ω
IOL=12.5mA
Rext =1240Ω
4.5 3 -
5.0 12.5 ±1.5
5.5 40 0.5 ±3
V mA μA mA %
Rev 1.2 2011-11-10 7/10
ET6034A
2 ()
IOUT2 dIOUT2
() dIOUT3
vs. vs.
%/dVDS %/dVDD IDD(SSD)
IDD (off)1
“OFF” IDD (off)2
IDD (off)3
“ON”
IDD (on)1 IDD (on)2
VDS =1.0V
VDS =1.0V
Rext =620Ω
IOL=25mA VDS =1.0V
Rext =620Ω
IOL=25mA VDS =1.0V
Rext =620Ω
=1.0~3.0V
=4.5~5.5V
Rext =, OUT0~OUT15=Off
Rext =1240Ω, OUT0~OUT15=Off
Rext =827Ω, OUT0~OUT15=Off
Rext =1240Ω, OUT0~O.