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| TLC5948A Datasheet, PDF (6/50 Pages) Texas Instruments – 16-Channel, 16-Bit, ES-PWM, Full Self-Diagnosis LED Driver | |||
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TLC5948A
SBVS192 â MARCH 2012
www.ti.com
SWITCHING CHARACTERISTICS (See Figure 4, Figure 5, and Figure 8 through Figure 11)
At TA = â40°C to +85°C, VCC = 3 V to 5.5 V, CL = 15 pF, RL = 82 â¦, RIREF = 1.1 kâ¦, and VLED = 5.0 V.
Typical values at VCC = 3.3 V and TA = +25°C, unless otherwise noted.
TLC5948A
PARAMETER
TEST CONDITIONS
MIN
TYP
tR0
Rise time
tR1
tF0
Fall time
tF1
tD0
tD1
tD2
tD3
tD4
Propagation delay
tD5
tD6
SOUT
OUTn, DCn and BC = 7Fh
SOUT
OUTn, DCn and BC = 7Fh
SCLKâ to SOUTââ
LATâ for BLANK = 1 set to OUT0, 7, 8, and 15 off
GSCLKâ to OUT0, 7, 8, and 15 on/off with DCn and BC = 7Fh
GSCLKâ to OUT1, 6, 9, and 14 on/off with DCn and BC = 7Fh
GSCLKâ to OUT2, 5, 10, and 13 on/off with DCn and BC = 7Fh
GSCLKâ to OUT3, 4, 11, and 12 on/off with DCn and BC = 7Fh
LATâ to power-save mode by writing data for OUTn off with
BLANK = 1 and PSMODE = 110
13
23
15
40
5
36
20
62
35
88
50
114
SCLKâ to normal mode with PSMODE = 101 or LAT â to normal
tD7
mode by writing GS data for OUTn on with BLANK = 1 and
PSMODE = 110
tON_ERR
Output on-time error(1)
tOUTON â tGSCLK, GSn = 0001h, GSCLK = 33 MHz,
DCn and BC = 7Fh, TA = +25°C
â20
MAX
5
5
25
75
65
97
129
161
200
UNIT
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
50
µs
10
ns
(1) Output on-time error (tON_ERR) is calculated by the formula: tON_ERR = tOUT_ON â tGSCLK. tOUTON is the actual on-time of the constant-
current driver. tGSCLK is the GSCLK period.
6
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Product Folder Link(s): TLC5948A
Copyright © 2012, Texas Instruments Incorporated
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