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PDF MBI5171 Data sheet ( Hoja de datos )
| Número de pieza | MBI5171 | |
| Descripción | 8-Bit Constant Current LED Driver | |
| Fabricantes | Macroblock | |
| Logotipo |  |
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Macroblock
Datasheet
MBI5171
8-Bit Constant Current LED Driver with
LED Error Detection and Run-Time Current Adjustment
Features
z Compatible with MBI5168 in electrical characteristics and package
z Exploiting Share-I-O™ technique to provide two operation modes:
- Normal Mode with the same functionality as MB5168
- Special Mode to detect individual LED errors, like MBI5169
and program output current gain, like MBI5170
z 8 constant-current output channels
z Constant output current invariant to load voltage change
z Constant output current range: 5 -120 mA
z Excellent output current accuracy,
between channels: < ±3% (max.), and
between ICs: < ±6% (max.)
z Output current adjusted through an external resistor
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 3.3~ 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
MSmBBaII5l5l1O06u08tC1linCDe DPackage
SOP16-150-1.27 Weight：0.13g
MWBidIe5-1b6o8dCyDSWOP
BI5001CD
SOP16-300-1.27 Weight：0.37g
MShBriIn5k16S8OCPP
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  
MBI5171
Block Diagram
R-EXT
OE /SW/ ED
LE/MOD/CA
VDD
GND
CLK
SDI
8-Bit Constant Current LED Driver with
LED Error Detection and Run-Time Current Adjustment
OUT0 OUT1
OUT6 OUT7
IOUT Regulator
Control Logic
8
8-Bit Configuration Latch
8-Bit Output Driver
8
8-Bit Output Latch
8
8-Bit Shift Register
8
8
SDO
Equivalent Circuits of Inputs and Outputs
OE/SW/ED Terminal
VDD
LE/MOD/CA Terminal
VDD
OE/SW/ ED
LE/MOD/CA
CLK, SDI Terminal
VDD
CLK, SDI
SDO Terminal
VDD
SDO
- 5 - March 2005, VA.02
5 Page 
MBI5171
8-Bit Constant Current LED Driver with
LED Error Detection and Run-Time Current Adjustment
Electrical Characteristics(VDD= 5.0V)
Characteristics
Symbol
Condition
Min.
Supply Voltage
Output Voltage
Output Current
Input Voltage
“H” level
“L” level
Output Leakage Current
Output Voltage SDO
Output Current 1
Current Skew
(between channels)
VDD
VDS
IOUT
IOH
IOL
VIH
VIL
VOL
VOH
IOUT1
-
OUT0 ~ OUT7
Test Circuit for Electrical Characteristics
SDO
SDO
Ta = -40~85ºC
Ta = -40~85ºC
VDS=17.0V and channel off
IOL=+1.0mA
IOH=-1.0mA
VDS = 0.5V; Rext = 744Ω; CG* = 0.992
dIOUT1 IOUT = 25mA, VDS ≥ 0.5V
4.5
-
5
-
-
0.7VDD
GND
-
-
4.6
-
-
Output Current 2
IOUT2 VDS = 0.6V; Rext = 372Ω; CG* = 0.992
Current Skew
(between channels)
dIOUT2 IOUT = 50mA, VDS ≥ 0.6V
Output Current 3
IOUT3 VDS = 0.8V; Rext = 186Ω; CG* = 0.992
Current Skew
(between channels)
Output Current vs.
Output Voltage Regulation
Output Current vs.
Supply Voltage Regulation
dIOUT3
%/dVDS
%/dVDD
IOUT = 100mA, VDS ≥ 0.8V
VDS within 1.0V and 3.0V
VDD within 4.5V and 5.5V
Pull-up Resistance
RIN(up) OE/SW/ED
Pull-down Resistance
RIN(down) LE/MOD/CA
Threshold Current for
Error Detection**
Iout, Th1 Rext=744 Ω, CG* = 0.992, Iout, target = 25mA
Iout, Th2 Rext=372 Ω, CG* = 0.992, Iout, target = 50mA
Iout, Th3 Rext=186 Ω, CG* = 0.992, Iout, target = 100mA
IDD(off) 0 Rext=Open, OUT0 ~ OUT7 =Off; CG= 0.992
Supply
Current
“OFF”
IDD(off) 1 Rext=744 Ω, OUT0 ~ OUT7 =Off; CG= 0.992
IDD(off) 2 Rext=372 Ω, OUT0 ~ OUT7 =Off; CG= 0.992
IDD(off) 3 Rext=186 Ω, OUT0 ~ OUT7 =Off; CG= 0.992
IDD(on) 1 Rext=744 Ω, OUT0 ~ OUT7 =On; CG= 0.992
“ON”
IDD(on) 2 Rext=372 Ω, OUT0 ~ OUT7 =On; CG= 0.992
IDD(on) 3 Rext=186 Ω, OUT0 ~ OUT7 =On; CG= 0.992
-
-
-
-
-
-
250
250
-
-
-
-
-
-
-
-
-
-
Typ.
5.0
-
-
-
-
-
-
-
-
-
25.0
±1
50.0
±1
100
±1
±0.1
±1
500
500
-
-
-
2.85
5.9
8.7
14.4
5.8
8.7
13.5
Max. Unit
5.5 V
17.0 V
120 mA
-1.0 mA
1.0 mA
VDD
0.3VDD
0.5
V
V
µA
0.4 V
-V
- mA
±3 %
- mA
±3 %
- mA
±3 %
- %/V
- %/V
800
800
24.9
40
70
3.65
7.9
10.7
16.4
7.8
10.7
15.5
KΩ
KΩ
mA
mA
mA
mA
- 11 -
March 2005, VA.02
11 Page | ||
| Páginas | Total 30 Páginas | |
| PDF Descargar | [ Datasheet MBI5171.PDF ] | |
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