參數(shù)資料
型號(hào)： LP5521YQX
廠商： NATIONAL SEMICONDUCTOR CORP
元件分類： 顯示驅(qū)動(dòng)器
英文描述： Programmable Three Channel LED Driver
中文描述： LED DISPLAY DRIVER, QCC24
封裝： 5 X 4 MM, 0.80 MM HEIGHT, 0.50 MM PITCH, LEAD FREE, LLP-24
文件頁(yè)數(shù)： 7/14頁(yè)
文件大?。?/td> 247K
代理商： LP5521YQX
LED Driver Electrical Characteristics (R, G, B Outputs)
Symbol
I
LEAKAGE
I
MAX
I
OUT
Parameter
Condition
Min
Typ
0.1
Max
1
Units
μA
R, G, B pin leakage current
Maximum Source Current
Outputs R, G, B
25.5
mA
Accuracy of output current
Output current set to 17.5 mA, V
DD
= 3.6V
-4
-5
4
5
2
%
I
MATCH
f
LED
Matching (Note 11)
I
OUT
= 17.5 mA, V
DD
= 3.6V
PWM_HF = 1
Frequency defined by internal oscillator
PWM_HF = 0
Frequency defined by 32 kHz clock (internal or
external)
I
OUT
set to 17.5 mA
1
%
LED PWM switching frequency
558
Hz
256
Hz
V
SAT
Saturation voltage (Note 12)
50
100
mV
Logic Interface Characteristics
(V(EN) = 1.65V...V
DD
unless otherwise noted)
Symbol
Parameter
LOGIC INPUT EN
V
IL
Input Low Level
V
IH
Input High Level
I
I
Logic Input Current
t
DELAY
Input delay
LOGIC INPUT SCL, SDA, TRIG, CLK_32K
V
IL
Input Low Level
V
IH
Input High Level
I
I
Input Current
f
CLK_32K
Clock frequency
f
SCL
Clock frequency
LOGIC OUTPUT SDA, TRIG, INT
V
OL
Output Low Level
I
L
Output Leakage Current
LOGIC INPUT ADDR_SEL0, ADDR_SEL1
V
IL
Input Low Level
V
IH
Input High Level
I
I
Input Current
LOGIC OUTPUT GPO, INT (in GPO state)
V
OL
Output Low Level
V
OH
Output High Level
I
L
Output leakage current
Conditions
Min
Typ
Max
Units
0.5
V
1.2
1.0
V
1.0
μA
2
μs
0.2xV(EN)
V
0.8xV(EN)
-1.0
V
1.0
μA
32
kHz
400
kHz
I
OUT
= 3 mA (pull-up current)
0.3
0.5
1.0
V
μA
0.2xV
DD
1.0
V
0.8xV
DD
–1.0
V
μA
I
OUT
= 3 mA
I
OUT
= -2 mA
0.3
0.5
V
V
DD
- 0.5
V
DD
- 0.3
V
1.0
μA
7
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