TLC5951 Datasheet, PDF (3/46 Pages) Texas Instruments – 24-Channel, 12-Bit PWM LED Driver with 7-Bit Dot Correction and 3-Group, 8-Bit Global Brightness Control

TLC5951
www.ti.com
SBVS127B – MARCH 2009 – REVISED DECEMBER 2009
DISSIPATION RATINGS
PACKAGE
HTSSOP-38 with
PowerPAD soldered⁽¹⁾
DERATING FACTOR
ABOVE T_A = +25°C
38.8 mW/°C
HTSSOP-38 with
PowerPAD not soldered⁽²⁾
QFN-40 ⁽³⁾
19.9 mW/°C
26.7 mW/°C
T_A < +25°C
POWER RATING
4845 mW
2490 mW
3342 mW
T_A = +70°C
POWER RATING
3101 mW
1594 mW
2139 mW
T_A = +85°C
POWER RATING
2519 mW
1295 mW
1738 mW
(1) With PowerPAD soldered onto copper area on printed circuit board (PCB); 2-oz. copper. For more information, see SLMA002 (available
for download at www.ti.com).
(2) With PowerPAD not soldered onto copper area on PCB.
(3) The package thermal impedance is calculated in accordance with JESD51-5.
RECOMMENDED OPERATING CONDITIONS
At T_A = –40°C to +85°C, unless otherwise noted.
PARAMETER
DC CHARACTERISTICS: V_CC = 3 V to 5.5 V
V_CC
Supply voltage
V_O
Voltage applied to output
OUTR0-OUTR7, OUTG0-OUTG7,
OUTB0-OUTB7
V_IH
High level input voltage
V_IL
Low level input voltage
I_OH
High level output current
GSSOUT, DCSOUT
I_OL
Low level output current
GSSOUT, DCSOUT
I_OLC
Constant output sink current
OUTR0-OUTR7, OUTG0-OUTG7,
OUTB0-OUTB7
T_A
Operating free-air
temperature
T_J
Operating junction
temperature
AC CHARACTERISTICS, V_CC = 3V to 5.5V
f_{CLK (SCK)}
Data shift clock frequency
f_CLK
(GSCKR/G/B)
Grayscale clock frequency
T_WH0/T_WL0
T_WH1/T_WL1
Pulse duration
T_WL2
T_SU0
T_SU1
T_SU2
T_SU3
Setup time
GSSCK, DCSCK
GSCKR, GSCKG, GSCKB
GSSCK, DCSCK
GSLAT
XBLNK
GSSIN – GSSCK↑, DCSIN – DCSCK↑
XBLNK↑ – GSCKR↑, GSCKG↑, or GSCKB↑
GSLAT↑ – GSSCK↑
GSLAT↑ for GS data – GSCKR↑, GSCKG↑,
or GSCKB↑ when display timing reset mode
is disabled
T_SU4
GSLAT↑ for GS data – GSCKR↑, GSCKG↑,
or GSCKB↑ when display timing reset mode
is enabled
T_H0
T_H1
Hold time
T_H2
GSSIN – GSSCK↑, DCSIN – DCSCK↑
GSLAT↑ – GSSCK↑
GSLAT↓ – GSSCK↑
TLC5951
MIN
NOM
MAX
3.0
0.7 × V_CC
GND
–40
–40
5.5
15
V_CC
0.3 × V_CC
–1
1
40
+85
+125
30
33
10
30
30
5
10
150
40
100
5
35
5
UNIT
V
V
V
V
mA
mA
mA
°C
°C
MHz
MHz
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
Copyright © 2009, Texas Instruments Incorporated
Product Folder Link(s): TLC5951
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