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| TLC5943_17 Datasheet, PDF (4/40 Pages) Texas Instruments – 16-Channel, 16-Bit PWM LED Driver with 7-Bit Global Brightness Control | |||
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TLC5943
SBVS101 â DECEMBER 2007
www.ti.com
ELECTRICAL CHARACTERISTICS
At VCC = 3.0 V to 5.5 V, and TA = â40°C to +85°C. Typical values at VCC = 3.3 V and TA = +25°C, unless otherwise noted.
TLC5943
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX UNIT
VOH
High-level output voltage
VOL
Low-level output voltage
IIN
Input current
IOH = â1 mA at SOUT
IOL = 1 mA at SOUT
IOL = 5 mA at XERR
VIN = VCC or GND at SIN, SCLK, GSCLK, XLAT,
BLANK, BCSEL
VCC â 0.4
0
â1
VCC
V
0.4
V
0.4
V
1
µA
ICC1
SIN/SCLK/GSCLK/XLAT/BCSEL = low, BLANK = high,
GSn = FFFFh, BCn = 7Fh, VOUTn = 1 V, RIREF = 10 kâ¦
1
3
mA
ICC2
SIN/SCLK/GSCLK/XLAT/BCSEL = low, BLANK = high,
GSn = FFFFh, BCn = 7Fh, VOUTn = 1 V, RIREF = 2 kâ¦
4
8
mA
ICC3
Supply current (VCC)
SCLK/GSCLK = 30 MHz, SIN = 15MHz,
XLAT/BCSEL/BLANK = low,
GSn = FFFFh, BCn = 7Fh, Auto Repeat on,
VOUTn = 1 V, RIREF = 2 kâ¦(1)
14
30
mA
SCLK/GSCLK = 30 MHz, SIN = 15MHz,
ICC4
XLAT/BCSEL/BLANK = low,
GSn = FFFFh, BCn = 7Fh, Auto Repeat on,
27
50
mA
VOUTn = 1 V, RIREF = 1 kâ¦(1)
IO(LC)
Constant output current
All OUTn = ON, BCn = 7Fh, VOUTn = 1 V,
VOUTfix = 1 V, RIREF = 1 kâ¦
43
49
55
mA
IO(LKG1)
Leakage output current
BLANK = high, RIREF = 1 kâ¦, VOUTn = 17 V,
At OUT0 to OUT15
0.1
µA
IO(LKG2)
ÎIO(LC)
ÎIO(LC1)
ÎIO(LC2)
ÎIO(LC3)
T(TEF)
T(HYS)
VLOD
VIREF
Leakage output current
Constant current error
(pin-to-pin) (1)
Constant current error
(device-to-device) (2)
Line regulation(3)
Load regulation(4)
Thermal error flag threshold
Thermal error hysteresis
LED open detection threshold
Reference voltage output
No error condition, VXERR = 5.5 V, at XERR
All OUTn = ON, BCn = 7Fh, VOUTn = 1 V,
VOUTfix = 1 V, RIREF = 1 kâ¦, at OUT0 to OUT15
All OUTn = ON, BCn = 7Fh, VOUTn = 1 V,
VOUTfix = 1 V, RIREF = 1 kâ¦
All OUTn = ON, BCn = 7Fh, VOUTn = 1 V,
VOUTfix = 1 V, RIREF = 1 kâ¦, at OUT0 to OUT15
All OUTn = ON, DCn = 7Fh, VOUTn = 1 V to 3 V,
VOUTfix = 1 V, RIREF = 1 kâ¦, at OUT0 to OUT15
Junction temperature(5)
Junction temperature(5)
All OUTn = ON
RIREF = 1 kâ¦
+150
+5
0.2
1.16
±1.5
±3
±1
±1
+162
+10
0.3
1.20
1
µA
±4
%
±9
%
±4
%/V
±3
%/V
+175
°C
+20
°C
0.4
V
1.24
V
(1) The deviation of each output from the average of OUT0âOUT15 constant current. Deviation is calculated by the formula:
D (%) =
IOUTn
(IOUT0 + IOUT1 + ... + IOUT15)
- 1 ´ 100
16
.
(2) The deviation of the OUT0âOUT15 constant current average from the ideal constant current value.
Deviation is calculated by the following formula:
D (%) =
(IOUT0 + IOUT1 + ... IOUT14 + IOUT15)
- (Ideal Output Current)
16
Ideal Output Current
´ 100
Ideal current is calculated by the formula:
IOUT(IDEAL) = 41 ´
1.20
RIREF
(3) Line regulation is calculated by this equation:
(IOUTn at VCC = 5.5 V) - (IOUTn at VCC = 3.0 V)
D (%/V) =
(IOUTn at VCC = 3.0 V)
100
´
5.5 V - 3 V
(4) Load regulation is calculated by the equation:
D (%/V) =
(IOUTn at VOUTn = 3 V) - (IOUTn at VOUTn = 1 V)
(IOUTn at VOUTn = 1 V)
100
´
3V-1V
(5) Not tested. Specified by design.
4
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Product Folder Link(s): TLC5943
Copyright © 2007, Texas Instruments Incorporated
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