TLC59291_15 Datasheet, PDF (6/45 Pages) Texas Instruments – TLC59291 8/16-Channel, Constant Current LED Driver with 7-bit Brightness Control Low Quiescent Current and Full Self Diagnosis for LED Lamp

TLC59291
SLVSA96 – SEPTEMBER 2015
www.ti.com
6.5 Electrical Characteristics
At V_CC = 3 V to 5.5 V and T_A = –40°C to 85°C. Typical values at V_CC = 3.3 V and T_A = 25°C, unless otherwise noted.
TLC5929
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
V_OH
V_OL
V_LOD
V_LSD0
V_LSD1
V_LSD2
V_LSD3
V_IREF
I_IN
I_CC0
I_CC1
I_CC2
I_CC3
I_CC4
I_CC5
I_CC6
High-level output voltage
Low-level output voltage
LED open detection threshold
LED short detection threshold
Reference voltage output
Input current
Supply current (V_CC)
I_OH = –2 mA at SOUT
I_OL = 2 mA at SOUT
All OUTn = on
All OUTn = on, detection voltage code = 0h
All OUTn = on, detection voltage code = 1h
All OUTn = on, detection voltage code = 2h
All OUTn = on, detection voltage code = 3h
R_IREF = 1.3 kΩ
V_IN = V_CC or GND at SIN, SCLK, LAT, and BLANK
SIN/SCLK/LAT = Low, BLANK = High, all OUTn = off,
V_OUTn = 0.8 V, BC = 7Fh, R_IREF = open
SIN/SCLK/LAT = Low, BLANK = High, all OUTn = off,
V_OUTn = 0.8 V, BC = 7Fh, R_IREF = 3.6 kΩ
(I_OUT = 18.3 mA target)
SIN/SCLK/LAT/BLANK =Low, All OUTn = on,
V_OUTn = 0.8 V, BC = 7Fh, R_IREF = 3.6 kΩ
(I_OUT = 18.3 mA target)
SIN/SCLK/LAT/BLANK =Low, All OUTn = on,
V_OUTn = 0.8 V, BC = 0Eh, R_IREF = 1.6 kΩ
(I_OUT = 2 mA target)
SIN/SCLK/LAT/BLANK = Low, All OUTn = on,
V_OUTn = 0.8 V, BC = 7Fh, R_IREF = 1.6 kΩ
(I_OUT = 41.3 mA target)
V_CC = 5 V, SIN/SCLK/LAT/BLANK = Low,
All OUTn = on, V_OUTn = 0.8 V, BC = 7Fh,
R_IREF = 1.3 kΩ (I_OUT = 50.8 mA target)
V_CC = 5 V, SIN/SCLK/LAT/BLANK = Low,
V_OUTn = 0.8 V, BC = 7Fh, R_IREF = 1.3 kΩ
(I_OUT = 50.8 mA target), all output data off with power-
save mode enabled
V_CC – 0.4
0.25
0.32 × V_CC
0.42 × V_CC
0.52 × V_CC
0.62 × V_CC
1.175
–1
0.30
0.35 × V_CC
0.45 × V_CC
0.55 × V_CC
0.65 × V_CC
1.205
V_CC
0.4
0.35
0.38 × V_CC
0.48 × V_CC
0.58 × V_CC
0.68 × V_CC
1.235
1
2
3
5
7
5
7
3
4
9
11
11
14
10
40
I_OLC0
I_OLC1
I_OL(KG0)
I_OL(KG1)
I_OL(KG2)
ΔI_OLC0
Constant output sink current
(OUT0 to OUT15, see
Figure 28)
Output leakage current
(OUT0 to OUT15, see
Figure 28)
Constant-current error
(channel-to-channel, OUT0 to
OUT15) ⁽²⁾
All OUTn = on, V_OUTn = V_OUTfix = 0.8 V, BC = 7Fh,
R_IREF = 1.6 kΩ
V_CC = 5 V, All OUTn = on, V_OUTn = V_OUTfix = 1 V,
BC = 7Fh, R_IREF = 1.3 kΩ
BLANK = high, V_OUTn = V_OUTfix =
10 V, R_IREF = 1.6 kΩ
T_J = 25°C
T_J = 85°C⁽¹⁾
T_J = 125°C⁽¹⁾
All OUTn = on, V_OUTn = V_OUTfix = 0.8 V, BC = 7Fh,
R_IREF = 1.6 kΩ, T_A = 25°C
38.5
41.3
44.1
47.3
50.8
54.3
0.1
0.2
0.3
0.8
±3%
±6%
UNIT
V
V
V
V
V
V
V
V
μA
mA
mA
mA
mA
mA
mA
µA
mA
mA
μA
μA
μA
(1) Not tested; specified by design.
(2) The deviation of each output from the average of OUT0 to OUT15 constant-current. Deviation is calculated by the formula:
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(%) = 100 x
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I_OLC(n)
I_OLC(0)+ I_OLC(1)+...+ I_OLC(14)+ I_OLC(15)
16
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- 1^úú
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6
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