TLC5948A Datasheet, PDF (4/50 Pages) Texas Instruments – 16-Channel, 16-Bit, ES-PWM, Full Self-Diagnosis LED Driver

TLC5948A
SBVS192 – MARCH 2012
www.ti.com
ELECTRICAL CHARACTERISTICS
At T_A = –40°C to +85°C and V_CC = 3 V to 5.5 V. Typical values at T_A = +25°C and V_CC = 3.3 V, unless otherwise noted.
TLC5948A
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX UNIT
V_OH
High-level output voltage
(SOUT)
I_OH = –2 mA
V_CC – 0.4
V_CC
V
V_OL
Low-level output voltage
(SOUT)
I_OL = 2 mA
0.4
V
V_LOD0
V_LOD1
V_LOD2
V_LOD3
V_LSD0
V_LSD1
V_LSD2
V_LSD3
V_IREF
I_IN
LED open-detection threshold
LED short-detection threshold
Reference voltage output
Input current
(SIN, SCLK, LAT, GSCLK)
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
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 = 1.1 kΩ
V_IN = V_CC or GND
0.25
0.30
0.35
V
0.55
0.6
0.65
V
0.85
0.9
0.95
V
1.15
1.2
1.25
V
0.30 × V_CC 0.35 × V_CC 0.40 × V_CC
V
0.40 × V_CC 0.45 × V_CC 0.50 × V_CC
V
0.50 × V_CC 0.55 × V_CC 0.60 × V_CC
V
0.60 × V_CC 0.65 × V_CC 0.70 × V_CC
V
1.17
1.20
1.23
V
–1
1
μA
I_CC0
I_CC1
I_CC2
I_CC3
I_CC4
I_CC5
I_OLC0
I_OLC1
I_OLKG0
I_OLKG1
I_OLKG2
Supply current (V_CC)
Constant output sink current
(OUT0 to OUT15)
Output leakage current
(OUT0 to OUT15)
SIN, SCLK, LAT, and GSCLK = GND, BLANK = 1,
GSn = FFFFh, DCn and BC = 7Fh, V_OUTn = 0.8 V,
R_IREF = open (all outputs off)
SIN, SCLK, LAT, and GSCLK = GND, BLANK = 1,
GSn = FFFFh, DCn and BC = 7Fh,
V_OUTn = 0.8 V, R_IREF = 2.2 kΩ
(all outputs off, I_OUTn = 23.1 mA target)
SIN, SCLK, and LAT = GND, BLANK = 0, auto display
repeat enabled, GSCLK = 33 MHz, GSn = FFFFh,
DCn and BC = 7Fh, V_OUTn = 0.8 V, R_IREF = 2.2 kΩ
(I_OUT = 23.1 mA target)
SIN, SCLK, and LAT = GND, BLANK = 0, auto display
repeat enabled, GSCLK = 33 MHz, GSn = FFFFh,
DCn and BC = 7Fh, V_OUTn = 0.8 V, R_IREF = 1.1 kΩ
(I_OUT = 46.1 mA target)
V_CC = 5.0 V, SIN, SCLK, and LAT = GND, BLANK = 0,
auto display repeat enabled, GSCLK = 33 MHz,
GSn = FFFFh, DCn and BC = 7Fh, V_OUTn = 0.8 V,
R_IREF = 0.91 kΩ (I_OUT = 55.8 mA target)
V_CC = 5.0 V, SIN, SCLK, LAT, and GSCLK = GND,
BLANK = 0, auto display repeat enabled, GSn = 0000h,
DCn and BC = 7Fh, in power-save mode,
V_OUTn = 0.8 V, R_IREF = 0.91 kΩ
(I_OUT = 55.8 mA target)
All OUTn = on, DCn and BC = 7Fh, V_OUTn = V_OUTfix =
0.8 V, R_IREF = 1.1 kΩ, T_A = +25°C
(I_OLCn = 46.1 mA target)
V_CC = 5.0 V, All OUTn = on, DCn and BC = 7Fh,
V_OUTn = V_OUTfix = 0.8 V, R_IREF = 0.91 kΩ, T_A = +25°C
(I_OLCn = 55.8 mA target)
All OUTn = off, BLANK = 1,
V_OUTn = V_OUTfix = 10 V,
R_IREF = 1.1 kΩ
T_J = +25°C
T_J = +85°C⁽¹⁾
T_J = +125°C⁽¹⁾
1.5
3
mA
5
7
mA
7
9
mA
11
14
mA
13
18
mA
10
40
µA
43.4
46.1
48.8
mA
52.5
55.8
59.1
mA
0.1
μA
0.2
μA
0.3
0.8
μA
(1) Not tested; specified by design.
4
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