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PDF MBI5170 Data sheet ( Hoja de datos )
| Número de pieza | MBI5170 | |
| Descripción | 8-Bit Constant Current LED Sink Driver | |
| Fabricantes | Macroblock | |
| Logotipo |  |
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Macroblock
Datasheet
MBI5170
8-Bit Constant Current LED Sink Driver
with Gain Control
Features
z Compatible with MBI5168 in package and electrical characteristics
z 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
z 8 constant-current output channels
z Output current adjustable through an external resistor
z Constant output current range: 5 -120 mA
z Excellent output current accuracy,
between channels < ±3% (max.), and
between ICs < ±6% (max.).
z Constant output current invariant to load voltage change
z Fast response of output current,
OE (min.): 200 ns @Iout < 60mA
OE (min.): 400 ns @Iout = 60~100mA
z 25MHz clock frequency
z Schmitt trigger input
z 3.3V~ 5V supply voltage
z 256-step run-time programmable output current gain
suitable for white balance application
z Optional for “Pb-free & Green” Package
Dual In-Line Package
MMBBI5I510680C1CNN
P-DIP16-300-2.54 Weight：1.02g
MSmBBaII5l5l1O06u08tC1linDCe DPackage
SOP16-150-1.27 Weight：0.13g
MWBidIe5-1b6o8dCyDSWOP
BI5001CD
SOP16-300-1.27 Weight：0.37g
MShBriIn5k16S8OCPP
SSOP16-150-0.64 Weight：0.07g
Current Accuracy
Between Channels
Between ICs
< ±3%
< ±6%
Conditions
IOUT = 10 ~ 100 mA,
VDS = 0.8V, VDD = 5.0V
Macroblock, Inc. 2005
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 - March 2005, VA.02
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 - March 2005, VA.02
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
Propagation Delay LE/MOD/CA - OUTn
Time (“L” to “H”) OE /SW - OUTn
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
Maximum CLK Rise Time
Maximum CLK Fall Time
Output Rise Time of Vout (turn off)
Output Fall Time of Vout (turn on)
Clock Frequency
tpLH1
- 100 150 ns
tpLH2
- 100 150 ns
tpLH3
- 100 150 ns
tpLH
20 25
30
tpHL1
Test Circuit for
Switching
-
100 150
tpHL2 Characteristics
-
100 150
ns
ns
ns
tpHL3
VDD=5.0 V
- 100 150
tpHL
VDS=0.8 V
VIH=VDD
20
25
30
tw(CLK)
VIL=GND
20 -
-
tw(L)
tw(OE)
Rext=372 Ω
VL=4.0 V
RL=64 Ω
20
200
-
-
-
-
th(L)
CL=10 pF
VG = 0.992
10
-
-
tsu(L)
CM = 1
5-
-
ns
ns
ns
ns
ns
ns
ns
tr***
- - 500 ns
tf***
- - 500 ns
tor - 120 150 ns
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 -
March 2005, VA.02
11 Page | ||
| Páginas | Total 27 Páginas | |
| PDF Descargar | [ Datasheet MBI5170.PDF ] | |
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