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TLC5905 Datasheet, PDF (8/27 Pages) Texas Instruments – LED DRIVER | |||
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TLC5905
LED DRIVER
SLLS401 â NOVEMBER 1999
recommended operating conditions
dc characteristics
ÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃ PARAMETER
TEST CONDITIONS
MIN
NOM
MAX
ÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃ Logic supply voltage, VCC(LOG)
ÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃ Supply voltage for constant current circuit,
ÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃ VCC(LED)
ÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃ Analog power supply, VCC(ANA)
ÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃ Voltage between VCC, V(DIFF1)
ÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃ Voltage between GND, V(DIFF2)
V(DIFF1) = VCC(LOG) â VCC(ANA)
VCC(LOG) â VCC(LED),
VCC(ANA) â VCC(LED)
V(DIFF2) = GNDLOG â GND(ANA)
GND(LOG) â GND(LED),
GND(ANA) â GND(LED)
4.5
5
5.5
4.5
5
5.5
4.5
5
5.5
â 0.3
0
0.3
â 0.3
0
0.3
ÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃ Voltage applied to constant current
ÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃ output, V(OUTn)
High-level input voltage, VIH
ÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃ Low-level input voltage, VIL
ÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃ High-level output current, IOH
ÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃ Low-level output current, IOL
ÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃ Constant output current, IOL(C)
ÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃ Operating freeâair temperature range, TA
OUT0 to OUT15 off
0.8 VCC(LOG)
GNDLOG
VCC(LOG) = 4.5V, SOUT, BOUT, GSOUT
VCC(LOG) = 4.5V, SOUT, BOUT, GSOUT
VCC(LOG) = 4.5V, XDOWN1, XDOWN2
OUT0 to OUT15
5
â 20
17
VCC(LOG)
0.2 VCC(LOG)
â 1.0
1.0
5
80
85
UNIT
V
V
V
V
V
V
V
V
mA
mA
mA
°C
ac characteristics, VCC(LOG) = VCC(ANA) = VCC(LED) = 4.5 V to 5.5 V, TA = â 20 to 85°C (unless otherwise noted)
PARAMETER
ÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃ SCLK clock frequency, f(SCLK)
TEST CONDITIONS
MIN TYP MAX UNIT
At single operation
At cascade operation (SOMODE = L)
15
MHz
10
ÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃ SCLK pulse duration (high or low level), tw(h)/tw(l)
ÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃ GSCLK clock frequency, f(GSCLK)
ÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃ GSCLK pulse duration (high or low level), tw(h)/tw(l)
20
Frequency division ratio 1/1
No GSOUT operation (see Note 2)
Frequency division ratio 1/1
40
No GSOUT operation (see Note 2)
20
ns
8
MHz
20
ns
ÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃ WDTRG clock frequency, f(WDT)
ÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃ WDTRG pulse duration (high or low level), tw(h)/tw(l)
ÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃ XLATCH pulse duration (high), tw(h)
Rise/fall time, tr/tf
ÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃ Setup time, tsu
SIN â SCLK
BLANK â GSCLK
XENABLE â SCLK
XLATCH â SCLK
XLATCH â GSCLK
RSEL â SCLK
RSEL â XLATCH
SIN â SCLK
8 MHz
40
ns
50
ns
100 ns
10
20
15
15
ns
10
10
20
10
ÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃ XENABLE â SCLK
20
ÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃ Hold time, th
XLATCH â SCLK
RSEL â SCLK
30
ns
20
ÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃ RSEL â XLATCH
20
ÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃ NOTE 2: When GSCLK is operated with >8 MHz, GSOUT operation can not be assured.
8
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