TLC5940_15 Datasheet, PDF (7/38 Pages) Texas Instruments – 16-Channel LED Driver

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TLC5940
SLVS515D – DECEMBER 2004 – REVISED NOVEMBER 2015
6.5 Electrical Characteristics
V_CC = 3 V to 5.5 V, T_A = –40°C to 85°C (unless otherwise noted)
PARAMETER
TEST CONDITIONS
V_OH
High-level output voltage
V_OL
Low-level output voltage
I_OH = -1 mA, SOUT
I_OL = 1 mA, SOUT
V_I = V_CC or GND; BLANK, DCPRG, GSCLK, SCLK, SIN,
XLAT
I_I
Input current
I_CC
Supply current
I_O(LC)
Constant sink current (see
Figure 10)
V_I = GND; VPRG
V_I = V_CC; VPRG
V_I = 22 V; VPRG; DCPRG = V_CC
No data transfer, all output OFF,
V_O = 1 V, R_(IREF) = 10 kΩ
No data transfer, all output OFF,
V_O = 1 V, R_(IREF) = 1.3 kΩ
Data transfer 30MHz, all output ON,
V_O = 1 V, R_(IREF) = 1.3 kΩ
Data transfer 30MHz, all output ON,
V_O = 1 V, R_(IREF) = 640 Ω
All output ON, V_O = 1 V, R_(IREF) = 640 Ω
I_lkg
Leakage output current
All output OFF, V_O = 15 V, R_(IREF) = 640 Ω,
OUT0 to OUT15
All output ON, V_O = 1 V, R_(IREF) = 640 Ω,
OUT0 to OUT15, –20°C to 85°C
ΔI_O(LC0)
Constant sink current error
(see Figure 10)
All output ON, V_O = 1V, R_(IREF) = 640 Ω,
OUT0 to OUT15⁽¹⁾
All output ON, V_O = 1V, R_(IREF) = 320 Ω,
OUT0 to OUT15, –20°C to 85°C
ΔI_O(LC1)
Constant sink current error
(see Figure 10)
All output ON, V_O = 1V, R_(IREF) = 320 Ω,
V_CC = 4.5 V to 5.5 V, OUT0 to OUT15⁽¹⁾
Device to device, Averaged current from OUT0 to
OUT15, R_(IREF) = 1920 Ω (20 mA)⁽²⁾
ΔI_O(LC2)
ΔI_O(LC3)
ΔI_O(LC4)
T_(TEF)
V_(LED)
V_(IREF)
Constant sink current error
(see Figure 10)
Device to device, Averaged current from OUT0 to
OUT15, R_(IREF) = 480 Ω (80 mA)⁽²⁾
All output ON, V_O = 1V, R_(IREF) = 640 Ω
Line regulation (see Figure 10) ^{OUT0 to OUT15, VCC = 3 V to 5.5 V(3)}
All output ON, V_O = 1V, R_(IREF) = 320 Ω ,
OUT0 to OUT15, V_CC = 3 V to 5.5 V⁽³⁾
Load regulation (see
Figure 10)
All output ON, V_O = 1 V to 3 V, R_(IREF) = 640 Ω,
OUT0 to OUT15⁽⁴⁾
All output ON, V_O = 1 V to 3 V, R_(IREF) = 320 Ω,
OUT0 to OUT15⁽⁴⁾
Thermal error flag threshold Junction temperature⁽⁵⁾
LED open detection threshold
Reference voltage
output
R_(IREF) = 640 Ω
MIN
V_CC –0.5
–1
–1
54
150
1.20
TYP
4
0.9
5.2
16
30
61
±1%
±1%
±1%
±1%
–2%
+0.4%
–2.7%
+2%
±1
±1
±2
±2
0.3
1.24
MAX
0.5
1
1
50
10
6
12
25
60
69
0.1
±4%
±8%
±6%
±8%
±4%
±4%
±4
±6
±6
±8
170
0.4
1.28
UNIT
V
V
μA
mA
mA
mA
μA
%/V
%/V
%/V
%/V
°C
V
V
(1) The deviation of each output from the average of OUT0-15 constant current. It is calculated by Equation 1 in Test Parameter Equations.
(2) The deviation of average of OUT1-15 constant current from the ideal constant-current value. It is calculated by Equation 2 in Test
Parameter Equations. The ideal current is calculated by Equation 3 in Test Parameter Equations.
(3) The line regulation is calculated by Equation 4 in Test Parameter Equations.
(4) The load regulation is calculated by Equation 5 in Test Parameter Equations.
(5) Not tested. Specified by design
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