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PDF L16B45A Data sheet ( Hoja de datos )
| Número de pieza | L16B45A | |
| Descripción | 16-BIT CONSTANT CURRENT LED SINK DRIVER | |
| Fabricantes | Unisonic Technologies | |
| Logotipo |  |
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Hay una vista previa y un enlace de descarga de L16B45A (archivo pdf) en la parte inferior de esta página. Total 12 Páginas | ||
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UNISONIC TECHNOLOGIES CO., LTD
L16B45A
Preliminary
16-BIT CONSTANT CURRENT
LED SINK DRIVER
CMOS IC
DESCRIPTION
The UTC L16B45A is designed for LED displays. UTC
L16B45A contains a serial buffer and data latches which convert
serial input data into parallel output format. At UTC L16B45A
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.
UTC L16B45A provides users with great flexibility and device
performance while using UTC L16B45A in their system design for
LED display applications, e.g. LED panels. Users may adjust the
output current from 3mA to 45mA through an external resistor, Rext,
which gives users flexibility in controlling the light intensity of LEDs.
UTC L16B45A guarantees to endure maximum 17V at the output
port. The high clock frequency, 25MHz, also satisfies the system
requirements of high volume data transmission.
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: ±2.5% (max.),
between ICs: ±3.0% (max.)
* Output current adjusted through an external resistor
* Fast response of output current, OE (min.): 70ns @ VDD=3.3V
* 25MHz clock frequency
* Schmitt trigger input
* 3.3V/5V supply voltage
* Halogen Free
ORDERING INFORMATION
Ordering Number
L16B45AG-R24-R
Package
SSOP-24
Packing
Tape Reel
www.unisonic.com.tw
Copyright © 2015 Unisonic Technologies Co., Ltd
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L16B45A
Preliminary
DC ELECTRICAL CHARACTERISTICS (VDD=3.3V)
PARAMETER
Supply Voltage
Output Voltage
Output Current
Input Voltage
“H” Level
“L” Level
Output Leakage Current
Output Voltage SDO
Output Current 1
Current Skew
Output Current 2
Current Skew
Output Current vs. Output
Voltage Regulation
Output Current vs. Supply
Voltage Regulation
Pull-Up Resistor
Pull-Down Resistor
“OFF”
Supply Current
“ON”
SYMBOL
TEST CONDITIONS
VDD
VDS OUT0 ~ OUT15
IOUT DC Test Circuit
IOH SDO
IOL SDO
VIH TA=-40~85°C
VIL TA=-40~85°C
IOH VDS=17.0V
VOL IOL=+1.0mA
VOH IOH=-1.0mA
IOUT1 VDS=1.0V, REXT=6000Ω
dIOUT1 IOL=3.1mA, VDS=1.0V, REXT=6000Ω
IOUT2 VDS=1.0V, REXT=720Ω
dIOUT2 IOL=25.8mA, VDS=1.0V, REXT=720Ω
%/dVDS VDS=1.0~3.0V
%/dVDD VDD=3.0~3.6V
RIN(up) OE
RIN(down) LE
IDD(off) 1 REXT=Open, OUT0 ~ OUT15 =Off
IDD(off) 2 REXT=1851Ω, OUT0 ~ OUT15 =Off
IDD(off) 3 REXT=748Ω, OUT0 ~ OUT15 =Off
IDD(on) 1 REXT=1851Ω, OUT0 ~ OUT15 =On
IDD(on) 2 REXT=748Ω, OUT0 ~ OUT15 =On
CMOS IC
MIN
3.0
3
0.7×VDD
GND
TYP
3.3
0.4
2.9
3.1
±2.5
25.8
±2
MAX UNIT
4.5 V
17.0 V
30 mA
-1.0 mA
1.0 mA
VDD
0.3×VDD
0.5
V
V
μA
V
V
mA
%
mA
%
±0.1 %/V
±1.0 %/V
250 500 800 KΩ
250 500 800 KΩ
1.7 2.3 mA
3.9 4.5 mA
5.2 5.8 mA
3.9 5.0 mA
5.2 5.8 mA
UNISONIC TECHNOLOGIES CO., LTD
www.unisonic.com.tw
5 of 12
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L16B45A
TIMING WAVEFORM
Preliminary
CMOS IC
OE
OUTn
tW(OE
50%
tPHL3
90%
50%
10%
tof
50%
tPLH3
90%
50%
10%
tor
UNISONIC TECHNOLOGIES CO., LTD
www.unisonic.com.tw
11 of 12
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11 Page | ||
| Páginas | Total 12 Páginas | |
| PDF Descargar | [ Datasheet L16B45A.PDF ] | |
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