TLC5945
www.ti.com
SLVS755–MARCH 2007
ELECTRICAL CHARACTERISTICS
VCC = 3 V to 5.5 V, TA = -40°C to 85°C (unless otherwise noted)
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX UNI
T
VOH
VOL
High-level output
voltage
IOH = –1 mA, SOUT
IOL = 1 mA, SOUT
VCC –0.5
V
Low-level output
voltage
0.5
V
VI = VCC or GND; BLANK, TEST, GSCLK, SCLK, SIN, XLAT pin
VI = GND; MODE pin
–1
–1
1
1
II
Input current
µA
VI = VCC; MODE pin
50
6
No data transfer, all output OFF, VO = 1 V, R(IREF) = 10 kΩ
No data transfer, all output OFF, VO = 1 V, R(IREF) = 1.3 kΩ
Data transfer 30 MHz, all output ON, VO = 1 V, R(IREF) = 1.3 kΩ
Data transfer 30 MHz, all output ON, VO = 1 V, R(IREF) = 640 Ω
0.9
5.2
16
30
61
12
25
60
ICC
Supply current
mA
IO(LC)
Ilkg
Constant output current All output ON, VO = 1 V, R(IREF) = 640 Ω
54
69 mA
Leakage output current All output OFF, VO = 15 V, R(IREF) = 640 Ω , OUT0 to OUT15
0.1 µA
All output ON, VO = 1 V, R(IREF) = 640 Ω, OUT0 to OUT15,
–20°C to 85°C(1)
All output ON, VO = 1 V, R(IREF) = 640 Ω, OUT0 to OUT15(1)
±1
±1
±1
±1
±4
±8
Constant sink current
error
∆IO(LC0)
%
All output ON, VO = 1 V, R(IREF) = 480 Ω, OUT0 to OUT15,
–20°C to 85°C(1)
All output ON, VO = 1 V, R(IREF) = 480 Ω, OUT0 to OUT15(1)
±6
±8
Constant sink current
error
Device to device, averaged current from OUT0 to OUT15,
–2,
0.4
∆IO(LC1)
∆IO(LC2)
±4
±4
±4
±6
%
%
R(IREF) = 1920 Ω (20 mA)(2)
Constant sink current
error
Device to device, averaged current from OUT0 to OUT15,
–2.7,
2
R(IREF) = 480 Ω (80 mA)(2)
All output ON, VO = 1 V, R(IREF) = 640 Ω OUT0 to OUT15,
±1
±1
VCC = 3 V to 5.5 V(3)
%/
V
∆IO(LC3)
Line regulation
All output ON, VO = 1 V, R(IREF) = 480 Ω OUT0 to OUT15,
VCC = 3 V to 5.5 V(3)
All output ON, VO = 1 V to 3 V, R(IREF) = 640 Ω, OUT0 to OUT15(4)
All output ON, VO = 1 V to 3 V, R(IREF) = 480 Ω, OUT0 to OUT15(4)
±2
±2
±6
±8
%/
V
∆IO(LC4)
Load regulation
Thermal error flag
threshold
T(TEF)
V(LED)
V(IREF)
Junction temperature(5)
150
170 °C
LED open detection
threshold
0.3
0.4
V
V
Reference voltage
output
RI(REF) = 640 Ω
1.20
1.24
1.28
(1) The deviation of each output from the average of OUT0-15 constant current. It is calculated by Equation 1 in Table 1.
(2) The deviation of average of OUT1-15 constant current from the ideal constant-current value. It is calculated by Equation 2 in Table 1.
The ideal current is calculated by Equation 3 in Table 1.
(3) The line regulation is calculated by Equation 4 in Table 1.
(4) The load regulation is calculated by Equation 5 in Table 1.
(5) Not tested. Specified by design.
4
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