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PDF MBI5025 Data sheet ( Hoja de datos )
| Número de pieza | MBI5025 | |
| Descripción | 16-channel Constant Current LED Sink Driver | |
| Fabricantes | Macroblock | |
| Logotipo |  |
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Macroblock
Datasheet
MBI5025
16-Channel Constant Current LED Sink Driver
Features
16 constant-current output channels
Constant output current invariant to load voltage change:
Constant output current range:
1-45mA@VDD=5V;
1-30mA@VDD=3.3V
Excellent output current accuracy
between channels: ±1.5% (typ.) and ±2% (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
RoHS compliant package
Package MSL Level: 3
Small Outline Package
GD: SOP24L-300-1.27
GF: SOP24L-300-1.00
Shrink SOP
GP: SSOP24L-150-0.64
Thin Shrink SOP
GTS: TSSOP24L-173-0.65
Product Description
With PrecisionDrive™ technology, MBI5025 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. MBI5025 contains a serial buffer and data latches which
convert serial input data into parallel output format. At MBI5025 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.
MBI5025 provides users with great flexibility and device performance while using MBI5025 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 1mA to 45mA determined by an external resistor, Rext, which gives users flexibility in
controlling the light intensity of LEDs. MBI5025 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. 2015
6F-4, No.18, Pu-Ting Rd., Hsinchu, Taiwan 30072, R.O.C.
TEL: +886-3-579-0068, FAX: +886-3-579-7534 E-mail: [email protected]
-1-
April 2015, VB.01
1 page  
MBI5025
16-Channel Constant Current LED Sink Driver
Maximum Ratings
Characteristic
Supply Voltage
Input Voltage
Output Current
Sustaining Voltage at OUT Port
GND Terminal Current
GD–type
Power Dissipation
(On PCB, Ta=25°C)
GF–type
GP–type
GTS-type
GD–type
Thermal Resistance
(On PCB, Ta=25°C)
GF–type
GP–type
GTS-type
Junction Temperature
Operating Ambient Temperature
Storage Temperature
ESD Rating
HBM (MIL-STD-883H
Method 3015.8,
Human Body Mode)
MM (ANSI/ESD
S5.2-2009,
Machine Mode)
Symbol
VDD
VIN
IOUT
VDS
IGND
PD
Rth(j-a)
Tj,max
Topr
Tstg
HBM
MM
Rating
0~7.0
-0.4~VDD+0.4
+50
-0.5~+17.0
+800
2.88
2.35
1.76
3.87
46.60
53.28
70.90
32.34
150**
-40~+85
-55~+150
Class 2
(3.5KV)
Class M4
(400V)
Unit
V
V
mA
V
mA
W
°C/W
°C
°C
°C
-
-
*The PCB size is 76.2mm*114.3mm in simulation. Please refer to JEDEC JESD51.
** Operation at the maximum rating for extended periods may reduce the device reliability; therefore, the suggested
junction temperature of the device is under 125°C.
Note: The performance of thermal dissipation is strongly related to the size of thermal pad, thickness and layer
numbers of the PCB. The empirical thermal resistance may be different from simulative value. Users should plan for
expected thermal dissipation performance by selecting package and arranging layout of the PCB to maximize the
capability.
April 2015, VB.01
-5-
5 Page 
MBI5025
16-Channel Constant Current LED Sink Driver
Application Information
Constant Current
To design LED displays, MBI5025 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%, 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
40
30
20
10
0
0
MBI5025 IOUT vs. VDS at Various Rext ,VDD=5.0V
0.5 1 1.5 2 2.5
VDS(V)
3
IOUT(mA)
40
MBI5025 IOUT vs. VDS at Various Rext,VDD=3.3V
30
20
10
0
0 0.5 1 1.5 2 2.5
VDS(V)
3
- 11 -
April 2015, VB.01
11 Page | ||
| Páginas | Total 20 Páginas | |
| PDF Descargar | [ Datasheet MBI5025.PDF ] | |
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