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PDF MBI5170 Data sheet ( Hoja de datos )
| Número de pieza | MBI5170 | |
| Descripción | 8-Bit Constant Current LED Sink Driver with Gain Control | |
| Fabricantes | ETC | |
| Logotipo |  |
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Macroblock
Datasheet
MBI5170
8-Bit Constant Current LED Sink Driver
with Gain Control
Features
M BMMMIBB5BII550I1517060008C1C1NCNCNN
l Compatible with MBI5168 in package and electrical characteristics
l Exploit Share-I-O™ technique to provide two operation modes:
Normal Mode with the same functionality as MB5168,
Current Adjust Mode to program output current gain
l 8 constant-current output channels
l Output current adjustable through an external resistor
l Constant output current range: 5 -120 mA
l Excellent output current accuracy,
between channels < ±3% (max.), and
between ICs < ±6% (max.).
l Constant output current invariant to load voltage change
l Fast response of output current,
OE (min.): 200 ns @Iout < 60mA
OE (min.): 400 ns @Iout = 60~100mA
l 25MHz clock frequency
l Schmitt trigger input
l 3.3V~ 5V supply voltage
l 256-step run-time programmable output current gain
suitable for white balance application
P-DIP16-300-2.54 Weight：1.02g
MMBBII55117608CCDD
MBI5001CD
SOP16-150-1.27 Weight：0.13g
MBI517608CDW
MBI5001C D
SOP16-300-1.27 Weight：0.37g
MMBBII55117608CCPP
Current Accuracy
Between Channels
Between ICs
< ±3%
< ±6%
Conditions
IOUT = 10 ~ 100 mA,
VDS = 0.8V, VDD = 5.0V
SSOP16-150-0.64 Weight：0.07g
©Macroblock, Inc. 2004
Floor 6-4, No.18, Pu-Ting Rd., Hsinchu, Taiwan 30077, ROC.
TEL: +886-3-579-0068, FAX: +886-3-579-7534, E-mail: [email protected]
- 1 - August 2004, VA.00
1 page  
MBI5170 8-Bit Constant Current LED Sink Driver with Gain Control
Timing Diagram
Normal Mode
N= 0 1 2 3 4 5 6 7
CLK
SDI
LE/MOD/CA
OE /SW
OUT0
OUT1
OUT2
OUT3
OFF
ON
OFF
ON
OFF
ON
OFF
ON
OUT6
OUT7
SDO
: don’t care
OFF
ON
OFF
ON
Truth Table (In Normal Mode)
CLK
LE/MOD/CA
OE /SW
HL
LL
HL
XL
XH
SDI
Dn
Dn+1
Dn+2
Dn+3
Dn+3
OUT0 … OUT5 … OUT 7
Dn ….. Dn - 5 …. Dn - 7
No Change
Dn + 2 …. Dn - 3 …. Dn - 5
Dn + 2 …. Dn - 3 …. Dn - 5
Off
SDO
Dn-7
Dn-6
Dn-5
Dn-5
Dn-5
- 5 - August 2004, VA.00
5 Page 
MBI5170 8-Bit Constant Current LED Sink Driver with Gain Control
Switching Characteristics (VDD= 5.0V)
Characteristics
Symbol Condition Min. Typ. Max. Unit
CLK - OUTn
tpLH1
- 100 150 ns
Propagation Delay LE/MOD/CA - OUTn
Time (“L” to “H”)
OE /SW - OUTn
tpLH2
tpLH3
- 100 150 ns
- 100 150 ns
CLK - SDO
CLK - OUTn
Propagation Delay LE/MOD/CA - OUTn
Time (“H” to “L”)
OE /SW - OUTn
CLK - SDO
CLK
Pulse Width
LE/MOD/CA
OE /SW (@Iout< 60mA)
Hold Time for LE/MOD/CA
Setup Time for LE/MOD/CA
tpLH
tpHL1
tpHL2
tpHL3
tpHL
tw(CLK)
tw(L)
tw(OE)
th(L)
tsu(L)
Test Circuit for
Switching
Characteristics
VDD=5.0 V
VDS=0.8 V
VIH=VDD
VIL=GND
Rext=372 Ω
VL=4.0 V
RL=64 Ω
CL=10 pF
VG = 0.992
CM = 1
20
-
-
-
20
20
20
200
10
5
25
100
100
100
25
-
-
-
-
-
30
150
150
150
30
-
-
-
-
-
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
Maximum CLK Rise Time
tr***
- - 500 ns
Maximum CLK Fall Time
tf***
- - 500 ns
Output Rise Time of Vout (turn off)
tor
- 120 150 ns
Output Fall Time of Vout (turn on)
Clock Frequency
tof - 200 250 ns
FCLK
Cascade
Operation
-
- 25.0 MHz
*** If MBI5170 are connected in cascade and tr or tf is large, it may be critical to achieve the timing required for
data transfer between two cascaded LED drivers MBI5170.
- 11 -
August 2004, VA.00
11 Page | ||
| Páginas | Total 24 Páginas | |
| PDF Descargar | [ Datasheet MBI5170.PDF ] | |
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