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TLC5921DAPR Datasheet, PDF (6/15 Pages) Texas Instruments – LED DRIVER | |||
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TLC5921
LED DRIVER
SLLS390 â SEPTEMBER 1999
electrical characteristics, MIN/MAX: VCC = 4.5 V to 5.5 V, TA = â 20 to 85°C
TYP: VCC = 5 V, TA = 25°C (unless otherwise noted)
ÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃ PARAMETER
TEST CONDITIONS
MIN
ÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃ VOH
High-level output voltage
IOH = â 1 mA
VCC
â0.5V
ÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃ VOL
II
Low-level output voltage
Input current
ÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃ ICC
Supply current
ÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃ IOL(C1)
ÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃ IOL(C2)
ÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃ Ilkg
Constant output current
Constant output current
Constant output leakage current
IOL = 1 mA
VI = VCC or GND (except BLANK, XLAT)
Input signal is static, VO = 1 V,
R(IREF) = 10 kâ¦, All output bits turn off
Input signal is static, VO = 1 V
RIREF = 1300 â¦, All output bits turn off
Input signal is static, VO = 1 V,
R(IREF) = 640 â¦, All output bits turn off
Data transfer,
VO = 1 V,
R(IREF) = 1300 â¦, All output bits turn on
Data transfer,
VO = 1 V,
R(IREF) = 640 â¦, All output bits turn on
VO = 1 V,
R(IREF) = 1300 â¦
35
VO = 1 V
R(IREF) = 640 â¦
70
OUT0 to OUT15 (V(OUTn) = 15 V)
XDOWN (5V pullup)
ÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃ âIO(LC)
Constant output current error between bit
VO = 1 V,
R(IREF) = 640 â¦,
All output bits turn on
ÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃ IâO(LC1)
Changes in constant output current
depend on supply voltage
Vref = 1.3 V
ÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃ IâO(LC2)
Changes in constant output current
depend on output voltage
VO = 1 V to 3 V, R(IREF) = 1300 â¦,
Vref = 1.3 V,
1 bit output turn on
ÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃ T(tsd)
TSD detection temperature
Junction temperature
150
ÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃ Vref
Reference voltage
R(IREF) = 640 â¦
ÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃ V(LEDDET) LEDdisconnectiondetectionvoltage
TYP MAX
0.5
±1
3 4.5
7
9
11
15
15
20
35
50
40
45
80
90
0.1
1
±1 ±4
±1 ±4
±2 ±6
160 170
1.3
0.3
UNIT
V
V
µA
mA
mA
mA
µA
µA
%
%/V
%/V
°C
V
V
switching characteristics, CL = 15 pF
ÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃ PARAMETER
ÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃ tr
Rise time
ÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃ tf
Fall time
ÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃ tpd Propagationdelaytime
ÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃà NOTE2: Atexternalresistor5kâ¦
TEST CONDITIONS
SOUT
OUTn (see Figure 1)
SOUT
OUTn
BLANKâ â OUTn
BLANKâ â OUTn
BLANKâ â XDOWN (see Note 2)
BLANKâ â XDOWN (see Note 2)
SCLK â SOUT
MIN
10
TYP
15
300
5
300
400
300
600
500
20
MAX
20
15
650
400
1000
1000
35
UNIT
ns
ns
ns
6
⢠POST OFFICE BOX 655303 DALLAS, TEXAS 75265
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