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PDF MBI5168 Data sheet ( Hoja de datos )
| Número de pieza | MBI5168 | |
| Descripción | 8-bit Constant Current LED Sink Driver | |
| Fabricantes | Macroblock | |
| Logotipo |  |
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Macroblock
Datasheet
MBI5168
8-bit Constant Current LED Sink Driver
Features
z 8 constant-current output channels
z Constant output current invariant to load voltage change
z Excellent output current accuracy:
between channels: < ±3% (max.), and
between ICs: < ±6% (max.)
z Output current adjusted through an external resistor
z Constant output current range: 5 -120 mA
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 Optional for “Pb-free & Green” Package
Current Accuracy
Between Channels
Between ICs
< ±3%
< ±6%
Conditions
IOUT = 10 ~ 100 mA,
VDS = 0.8V, VDD= 5.0V
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
Product Description
MBI5168 is designed for LED display applications. As an enhancement of its predecessor, MBI5001, MBI5168
exploits PrecisionDrive™ technology to enhance its output characteristics. MBI5168 contains a serial buffer and
data latches, which convert serial input data into parallel output format. At MBI5168 output stage, eight regulated
current ports are designed to provide uniform and constant current sinks for driving LEDs within a large range of Vf
variations.
MBI5168 provides users with great flexibility and device performance while using MBI5168 in their system design
for LED display applications, e.g. LED panels. Users may adjust the output current from 5 mA to 120 mA through
an external resistor Rext, which gives users flexibility in controlling the light intensity of LEDs. MBI5168 guarantees
to endure maximum 17V at the output ports. The high clock frequency up to 25 MHz also satisfies the system
requirements of high volume data transmission.
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  
MBI5168
Truth Table
CLK
LE
H
L
H
X
X
8-bit Constant Current LED Sink Driver
OE SDI OUT0 … OUT5 … OUT 7
L Dn
Dn ….. Dn - 5 …. Dn - 7
L Dn+1
No Change
L
Dn+2
Dn + 2 …. Dn - 3 …. Dn - 5
L
Dn+3
Dn + 2 …. Dn - 3 …. Dn - 5
H Dn+3
Off
SDO
Dn-7
Dn-6
Dn-5
Dn-5
Dn-5
Maximum Ratings
Characteristic
Supply Voltage
Input Voltage
Output Current
Output Voltage
Clock Frequency
GND Terminal Current
CN
Power Dissipation
(On PCB, Ta=25°C)
CD
CDW
CP
CN
Thermal Resistance
(On PCB, Ta=25°C)
CD
CDW
CP
Operating Temperature
Storage Temperature
GN
GD
GDW
GP
GN
GD
GDW
GP
Symbol
VDD
VIN
IOUT
VDS
FCLK
IGND
PD
Rth(j-a)
Topr
Tstg
Rating
0 ~ 7.0
-0.4 ~ VDD+0.4
+120
-0.5 ~ +20.0
25
1000
1.55
1.66
1.17
1.43
1.62
1.46
1.05
1.25
64.35
60.20
85.82
70.14
61.63
68.67
94.91
80.00
-40 ~ +85
-55 ~ +150
Unit
V
V
mA
V
MHz
mA
W
°C/W
°C
°C
- 5 - March 2005, VA.02
5 Page 
MBI5168
8-bit Constant Current LED Sink Driver
Application Information
Constant Current
In LED display application, MBI5168 provides nearly no variations in current from channel to channel and from IC
to IC. This can be achieved by:
1) While IOUT ≦ 100mA, the maximum current variation between channels is less than ±3%, and that between ICs
is less than ±6%.
2) In addition, the characteristics curve of output stage in the saturation region is flat and users can refer to the
figure as shown below. Thus, the output current can be kept constant regardless of the variations of LED
forward voltages (VF).
Iout v.s.Vout for various Rext (VDD= 5.0V)
140
120
100
80
60
40
20
0
0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1 1.1 1.2 1.3 1.4 1.5
VDS (V)
- 11 -
March 2005, VA.02
11 Page | ||
| Páginas | Total 19 Páginas | |
| PDF Descargar | [ Datasheet MBI5168.PDF ] | |
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