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TLC5921 数据表(PDF) 6 Page - Texas Instruments

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部件名 TLC5921
功能描述  LED DRIVER
PDF  14 Pages
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制造商  TI [Texas Instruments]
网页  http://www.ti.com
标志 TI - Texas Instruments

TLC5921 数据表(HTML) 6 Page - Texas Instruments

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TLC5921
LED DRIVER
SLLS390 – SEPTEMBER 1999
6
POST OFFICE BOX 655303
• DALLAS, TEXAS 75265
electrical characteristics, MIN/MAX: VCC = 4.5 V to 5.5 V, TA = – 20 to 85°C
TYP: VCC = 5 V, TA = 25°C (unless otherwise noted)
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
VOH
High-level output voltage
IOH = – 1 mA
VCC
–0.5V
V
VOL
Low-level output voltage
IOL = 1 mA
0.5
V
II
Input current
VI = VCC or GND (except BLANK, XLAT)
± 1
µA
Input signal is static, VO = 1 V,
R(IREF) = 10 kΩ,
All output bits turn off
3
4.5
Input signal is static, VO = 1 V
RIREF = 1300 Ω,
All output bits turn off
7
9
ICC
Supply current
Input signal is static, VO = 1 V,
R(IREF) = 640 Ω,
All output bits turn off
11
15
mA
Data transfer,
VO = 1 V,
R(IREF) = 1300 Ω, All output bits turn on
15
20
Data transfer,
VO = 1 V,
R(IREF) = 640 Ω,
All output bits turn on
35
50
IOL(C1)
Constant output current
VO = 1 V,
R(IREF) = 1300 Ω
35
40
45
mA
IOL(C2)
Constant output current
VO = 1 V
R(IREF) = 640 Ω
70
80
90
mA
Ilk
Constant output leakage current
OUT0 to OUT15 (V(OUTn) = 15 V)
0.1
µA
Ilkg
Constant output leakage current
XDOWN (5V pullup)
1
µA
∆IO(LC)
Constant output current error between bit
VO = 1 V,
R(IREF) = 640 Ω,
All output bits turn on
± 1
± 4
%
I
∆O(LC1)
Changes in constant output current
depend on supply voltage
Vref = 1.3 V
± 1
± 4
%/V
I
∆O(LC2)
Changes in constant output current
depend on output voltage
VO = 1 V to 3 V,
R(IREF) = 1300 Ω,
Vref = 1.3 V,
1 bit output turn on
± 2
± 6
%/V
T(tsd)
TSD detection temperature
Junction temperature
150
160
170
°C
Vref
Reference voltage
R(IREF) = 640 Ω
1.3
V
V(LEDDET)
LED disconnection detection voltage
0.3
V
switching characteristics, CL = 15 pF
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
t
Rise time
SOUT
15
20
ns
tr
Rise time
OUTn (see Figure 1)
300
ns
tf
Fall time
SOUT
5
15
ns
tf
Fall time
OUTn
300
ns
BLANK
↑ – OUTn
400
650
BLANK
↓ – OUTn
300
400
tpd
Propagation delay time
BLANK
↑ – XDOWN (see Note 2)
600
1000
ns
BLANK
↓ – XDOWN (see Note 2)
500
1000
SCLK – SOUT
10
20
35
NOTE 2: At external resistor 5 k
Ω



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