TLC59291_16 Datasheet, PDF (8/46 Pages) Texas Instruments – 8/16-Channel, Constant Current LED Driver

TLC59291
SLVSA96A – SEPTEMBER 2015 – REVISED MARCH 2016
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6.6 Switching Characteristics
At V_CC = 3 V to 5.5 V, T_A = –40°C to 85°C, C_L = 15 pF, R_L = 82 Ω, R_IREF = 1.3 kΩ, and V_LED = 5 V.
Typical values at V_CC = 3.3 V and T_A = 25°C, unless otherwise noted.
PARAMETER
TEST CONDITIONS
MIN
TYP
t_R0
Rise time
At SOUT
10
t_R1
At OUTn, BC = 7Fh
40
t_F0
Fall time
At SOUT
10
t_F1
At OUTn, BC = 7Fh
40
t_D0
SCLK↑ to SOUT↑↓
8
t_D1
LAT↑ or BLANK↑↓ to OUT0 sink current on/off,
BC = 7Fh
35
t_D2
Propagation delay
OUTn on/off to OUTn + 1 on/off, BC = 7Fh
2
t_D3
LAT↑ to power-save mode by data writing for all output
off
t_D4
SCLK↑ to normal mode operation
t_D5
BLANK↑↓ to SOUT↑↓ when BLANK MODE=0
t_{ON_ERR} Output on-time error⁽¹⁾
Output on/off data = all '1',
BLANK low pulse = 40 ns, BC = 7Fh
–30
f_OSC
Internal oscillator
frequency
12
20
MAX
15
60
15
60
22
65
6
400
100
100
20
UNIT
ns
ns
ns
ns
ns
ns
ns
ns
µs
ns
ns
28 MHz
(1) Output on-time error (t_{ON_ERR}) is calculated by the formula: t_{ON_ERR} (ns) = t_{OUT_ON} – 40 ns. t_{OUT_ON} is the actual on-time of OUTn.
8
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