TLC5940 Datasheet, PDF (3/29 Pages) Texas Instruments – 16 CHANNEL LED DRIVER WITH DOT CORRECTION AND GRAYSCALE PWM CONTROL

TLC5940
www.ti.com
SLVS515A – DECEMBER 2004 – REVISED AUGUST 2005
RECOMMENDED OPERATING CONDITIONS
DC CHARACTERISTICS
V_CC
Supply Voltage
V_O
Voltage applied to output (OUT0–OUT15)
V_IH
High-level input voltage
V_IL
Low-level input voltage
I_OH
High-level output current
V_CC = 5 V at SOUT
I_OL
Low-level output current
V_CC = 5 V at SOUT, XERR
I_OLC
Constant output current
OUT0 to OUT15, V_CC < 3.6 V
OUT0 to OUT15, V_CC > 3.6 V
V_(PRG) EEPROM program voltage
T_A
Operating free-air temperature range
AC CHARACTERISTICS V_CC = 3 V to 5.5 V, T_A = –40°C to 85°C (unless otherwise noted)
f_(SCLK) Data shift clock frequency
SCLK
f_(GSCLK) Grayscale clock frequency
GSCLK
t_wh0/t_wl0 SCLK pulse duration
SCLK = H/L (see Figure 8)
t_wh1/t_wl1 GSCLK pulse duration
GSCLK = H/L (see Figure 13)
t_wh2
XLAT pulse duration
XLAT = H (see Figure 11)
t_wh3
BLANK pulse duration
BLANK = H (see Figure 13)
t_su0
SIN–SCLK (see Figure 11)
t_su1
SCLK–XLAT (see Figure 11)
t_su2
Setup time
t_su3
VPRG–SCLK (see Figure 6)
VPRG–XLAT (see Figure 6)
t_su4
BLANK–GSCLK (see Figure 13)
t_su5
VPRG–DCPRG
t_h0
SCLK–SIN (see Figure 11)
t_h1
XLA–SCLK (see Figure 11)
t_h2
Hold Time
t_h3
SCLK–VPRG (see Figure 6)
XLAT–VPRG (see Figure 6)
t_h4
BLANK–GSCLK (see Figure 13)
t_h5
DCPRG–VPRG
t_prog
Programming time for EEPROM
MIN NOM
MAX UNIT
3
0.8 V_CC
GND
20
-40
5.5 V
17 V
V_CC
V
0.2 V_CC V
–1 mA
1 mA
60 mA
120 mA
22
23 V
85 °C
30 MHz
30 MHz
16
ns
16
ns
20
ns
20
ns
10
ns
10
ns
10
ns
10
ns
10
ns
1
ms
10
ns
10
ns
10
ns
10
ns
10
ns
1
ms
20
ms
DISSIPATION RATINGS
PACKAGE
28-pin HTSSOP with
PowerPAD™ ⁽¹⁾soldered
28-pin HTSSOP with PowerPAD™ un-
soldered
32-pin QFN⁽¹⁾
28-pin PDIP
POWER RATING
T_A < 25°C
3958 mW
2026 mW
3482 mW
2456 mW
DERATING FACTOR
ABOVE T_A = 25°C
31.67 mW/°C
16.21 mW/°C
27.86 mW/°C
19.65 mW/°C
POWER RATING
T_A = 70°C
2533 mW
1296 mW
2228 mW
1572 mW
(1) The PowerPAD is soldered to the PCB with a 2 oz. copper trace. See SLMA002 for further information.
POWER RATING
T_A = 85°C
2058 mW
1053 mW
1811 mW
1277 mW
3