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TLC5928RGE Datasheet(PDF) 4 Page - Texas Instruments

Part # TLC5928RGE
Description  16-Channel, Constant-Current LED Driver with LED Open Detection
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Manufacturer  TI [Texas Instruments]
Direct Link  http://www.ti.com
Logo TI - Texas Instruments

TLC5928RGE Datasheet(HTML) 4 Page - Texas Instruments

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ELECTRICAL CHARACTERISTICS
D
(%)=
-
1
I
OUTn
(I
+I
+...+I
+I
)
OUT0
OUT1
OUT15
OUT14
16
´
100
.
D
(%)=
IdealOutputCurrent
-
(IdealOutputCurrent)
(I
+I
+...I
+I
)
OUT0
OUT1
OUT14
OUT15
16
´
100
I
=42
´
OUT(IDEAL)
1.20
R
IREF
100
(I
atV
=3.0V)
OUTn
CC
(I
atV
=5.5V)
(I
atV
=3.0V)
OUTn
CC
OUTn
CC
-
5.5V
3V
-
D
(%/V)=
´
100
3V
1V
-
´
(I
atV
=1V)
OUTn
OUTn
(I
atV
=3V)
(I
atV
=1V)
-
OUTn
OUTn
OUTn
OUTn
D
(%/V)=
TLC5928
SBVS120B – JULY 2008 – REVISED OCTOBER 2008...................................................................................................................................................... www.ti.com
At VCC = 3.0 V to 5.5 V and TA = –40°C to +85°C. Typical values at VCC = 3.3 V and TA = +25°C, unless otherwise noted.
TLC5928
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
VOH
High-level output voltage
IOH = –1 mA at SOUT
VCC – 0.4
VCC
V
VOL
Low-level output voltage
IOL = 1 mA at SOUT
0
0.4
V
IIN
Input current
VIN = VCC or GND at SIN, SCLK, LAT, and BLANK
–1
1
µA
SIN/SCLK/LAT = low, BLANK = high, VOUTn = 1 V,
ICC1
1
2
mA
RIREF = 27 kΩ
SIN/SCLK/LAT = low, BLANK = high, VOUTn = 1 V,
ICC2
4.5
8
mA
RIREF = 3 kΩ
Supply current (VCC)
SIN/SCLK/LAT/BLANK = low, VOUTn = 1 V,
ICC3
7
18
mA
RIREF = 3 kΩ
SIN/SCLK/LAT/BLANK = low, VOUTn = 1 V,
ICC4
16
40
mA
RIREF = 1.5 kΩ
All OUTn = ON, VOUTn = VOUTfix = 1 V, RIREF = 1.5 kΩ
IOLC
Constant output current
31
34
37
mA
(see Figure 6), at OUT0 to OUT15
All OUTn for constant current driver, all outputs off
IOLKG
Output leakage current
BLANK = high, VOUTn = VOUTfix = 17 V, RIREF = 1.5 kΩ
0.1
µA
(see Figure 6), at OUT0 to OUT15
Constant current error
All OUTn = ON, VOUTn = VOUTfix = 1 V, RIREF = 1.5 kΩ
ΔIOLC
±1
±3
%
(channel-to-channel)(1)
at OUT0 to OUT15
Constant current error
All OUTn = ON, VOUTn = VOUTfix = 1 V, RIREF = 1.5 kΩ
ΔIOLC1
±1
±6
%
(device-to-device)(2)
at OUT0 to OUT15
All OUTn = ON, VOUTn = VOUTfix = 1 V, RIREF = 1.5 kΩ
ΔIOLC2
Line regulation(3)
±0.5
±1
%/V
at OUT0 to OUT15
All OUTn = ON, VOUTn = 1 V to 3V, VOUTfix = 1 V,
ΔIOLC3
Load regulation(4)
±1
±3
%/V
RIREF = 1.5 kΩ, at OUT0 to OUT15
T(PTW)
Pre-thermal warning threshold
Junction temperature(5)
+125
+138
+150
°C
VLOD
LED open detection threshold
All OUTn = ON
0.25
0.30
0.35
V
VIREF
Reference voltage output
RIREF = 1.5 kΩ
1.16
1.20
1.24
V
(1)
The deviation of each output from the average of OUT0–OUT15 constant current. Deviation is calculated by the formula:
(2)
The deviation of the OUT0–OUT15 constant current average from the ideal constant current value.
Deviation is calculated by the following formula:
Ideal current is calculated by the formula:
(3)
Line regulation is calculated by this equation:
(4)
Load regulation is calculated by the equation:
(5)
Not tested. Specified by design.
4
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Copyright © 2008, Texas Instruments Incorporated
Product Folder Link(s): TLC5928


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