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TLC5952 датащи(PDF) 6 Page - Texas Instruments

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номер детали TLC5952
подробное описание детали  24-Channel, Constant-Current LED Driver with Global Brightness Control and LED Open-Short Detection
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производитель  TI [Texas Instruments]
домашняя страница  http://www.ti.com
Logo TI - Texas Instruments

TLC5952 датащи(HTML) 6 Page - Texas Instruments

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SWITCHING CHARACTERISTICS
TLC5952
SBVS129 – MAY 2009........................................................................................................................................................................................................ www.ti.com
At TA = –40°C to +85°C, VCC = 3 V to 5.5 V, CL = 15 pF, RL = 120 Ω, RIREF = 1.5 kΩ, and VLED = 5.0 V, unless otherwise
noted. Typical values are at TA = +25°C and VCC = 3.3 V.
PARAMETER
TEST CONDITIONS
MIN
TYP MAX UNIT
tR0
SOUT
6
15
ns
Rise time
tR1
OUTR0-OUTR7, OUTG0-OUTG7, OUTB0-OUTB7, BCR/G/B = 7Fh
10
30
ns
tF0
SOUT
6
15
ns
Fall time
tF1
OUTR0-OUTR7, OUTG0-OUTG7, OUTB0-OUTB7, BCR/G/B = 7Fh
10
30
ns
tD0
SCLK
↑ to SOUT
8
20
ns
tD1
LAT
↑ to OUTR0 on/off, BCR/G/B = 7Fh
22
45
ns
tD2
BLANK
↓↑ to OUTR0 on/off, BCR/G/B = 7Fh
15
30
ns
OUTRn on to OUTGn on, OUTGn on to OUTBn on,
Propagation delay
tD3
3
6
ns
OUTBn on to OUTRn + 1 on, BCR/G/B = 7Fh
time(1)
OUTRn off to OUTGn off, OUTGn off to OUTBn off,
tD4
3
6
ns
OUTBn off to OUTRn + 1 off, BCR/G/B = 7Fh
LAT
↑ to IOUTn changing by global brightness control (BC data are
tD5
20
50
ns
0Ch-72h or 72h-0Ch)
On/off latched data = '1', BCR/G/B = 7Fh, 20 ns BLANK low level
tON_ERR
Output on-time error(2)
–11
5
ns
one-shot pulse input
(1)
Propagation delay, tD3 (OUTRn on to OUTGn on, OUTGn on to OUTBn on, OUTBn on to OUTRn + 1 on ) is calculated by the formula:
tD3 (ns) = (the propagation delay between OUTR0 to OUTB7 = on)/23
tD4 (OUTRn to OUTGn = off, OUTGn to OUTBn = off, OUTBn to OUTRn + 1 = off ) is calculated by the formula:
tD4 (ns) = (the propagation delay between OUTR0 to OUTB7 = off)/23
(2)
Output on-time error is calculated by the formula: tON_ERR (ns) = tOUT_ON – BLANK low-level pulse width. tOUT_ON is the actual on-time of
the constant current output.
6
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Copyright © 2009, Texas Instruments Incorporated
Product Folder Link(s): TLC5952


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