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PDF MBI5024 Data sheet ( Hoja de datos )
| Número de pieza | MBI5024 | |
| Descripción | 16-bit Constant Current LED Sink Driver | |
| Fabricantes | Macroblock | |
| Logotipo |  |
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Hay una vista previa y un enlace de descarga de MBI5024 (archivo pdf) en la parte inferior de esta página. Total 18 Páginas | ||
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Macroblock
Datasheet
Features
• 16 constant-current output channels
• Constant output current invariant to load voltage change:
Constant output current range:
3-45mA@VDD=5V;
3-30mA@VDD=3.3V
• Excellent output current accuracy:
between channels: ±1.5% (typ.) and ±2.5% (max.)
between ICs: ±1.5% (typ.) and ±3% (max.)
• Output current adjusted through an external resistor
• Fast response of output current, OE (min.): 70ns with good uniformity
between output channels
• Staggered delay of output
• 25MHz clock frequency
• Schmitt trigger input
• 3.3V/ 5V supply voltage
• “Pb-free & Green” Package
MBI5024
Small Outline Package
GF: SOP24L-300-1.00
Shrink SOP
GP/GPA: SSOP24L-150-0.64
Current Accuracy
Between Channels
<±2%
Between ICs
<±3%
<±2.5%
<±3%
Product Description
Conditions
IOUT=25mA@VDS=0.7V
IOUT=3mA~30mA@VDS=0.7V; VDD=3.3V
IOUT=3mA~45mA@VDS=0.7V; VDD=5.0V
With PrecisionDrive™ technology, MBI5024 is designed for LED displays which require to operate at low current
and to match the luminous intensity of each channel. It provides supply voltage and accepts CMOS logic input at
3.3V and 5.0V to meet the trend of low power consumption. MBI5024 contains a serial buffer and data latches
which convert serial input data into parallel output format. At MBI5024 output stage, sixteen regulated current ports
are designed to provide uniform and constant current sinks for driving LEDs within a large range of VF variations.
MBI5024 provides users with great flexibility and device performance while using MBI5024 in their system design
for LED display applications, e.g. LED panels. It accepts an input voltage range from 3V to 5.5V and maintains a
constant current up from 3mA to 45mA determined by an external resistor, Rext, which gives users flexibility in
controlling the light intensity of LEDs. MBI5024 guarantees to endure maximum 17V at the output port. The high
clock frequency, 25 MHz, also satisfies the system requirements of high volume data transmission.
©Macroblock, Inc. 2008
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 - April 2008, VA.02
1 page  
MBI5024
Maximum Ratings
Characteristic
Supply Voltage
Input Voltage
Output Current
Sustaining Voltage at OUT Port
GND Terminal Current
Power Dissipation
(On PCB, Ta=25°C)
GF–type
GP–type
GPA–type
Thermal Resistance
(On PCB, Ta=25°C)
GF–type
GP–type
GPA–type
Operating Temperature
Storage Temperature
Symbol
VDD
VIN
IOUT
VDS
IGND
PD
Rth(j-a)
Topr
Tstg
Rating
0~7.0
-0.4~VDD+0.4
+90
-0.5~+17.0
+1000
2.35
1.76
1.76
53.28
70.90
70.90
-40~+85
-55~+150
Unit
V
V
mA
V
mA
W
°C/W
°C
°C
- 5 - April 2008, VA.02
5 Page 
MBI5024
Application Information
Constant Current
To design LED displays, MBI5024 provides nearly no variations in current from channel to channel and from IC to
IC. This can be achieved by:
1) The maximum current variation between channels is less than ±2.5%, and that between ICs is less than ±3%.
2) In addition, the current characteristic of output stage is flat and users can refer to the figure as shown below. The
output current can be kept constant regardless of the variations of LED forward voltages (VF). This performs as
a perfection of load regulation.
IOUT(mA)
50
MBI5024 IOUT vs. VDS at Various Rext ,VDD=5.0V
40
30
20
10
0
0 0.5 1 1.5 2 2.5
VDS(V)
3
IOUT(mA)
40
MBI5024 IOUT vs. VDS at Various Rext,VDD=3.3V
30
20
10
0
0 0.5 1 1.5 2 2.5 3
VDS(V)
- 11 -
April 2008, VA.02
11 Page | ||
| Páginas | Total 18 Páginas | |
| PDF Descargar | [ Datasheet MBI5024.PDF ] | |
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