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參數(shù)資料
| 型號： | LM3595 |
| 廠商： | National Semiconductor Corporation |
| 元件分類： | LED驅動器 |
| 英文描述： | The LM3595 is a parallel white-LED driver that is capable of driving four white LEDs. |
| 中文描述： | 該LM3595是平行的白光LED驅動器能夠驅動4個白光LED的能力。 |
| 文件頁數(shù)： | 3/11頁 |
| 文件大小： | 233K |
| 代理商： | LM3595 |
Absolute Maximum Ratings
2)
If Military/Aerospace specified devices are required,
please contact the National Semiconductor Sales Office/
Distributors for availability and specifications.
(Notes 1,
V
IN
EN, BR-ON, BRGT
0.3V to 6.0V
-0.3V to
(V
IN
+ 0.3V) w/
6.0V max
Junction Temperature (T
J-MAX-ABS
)
Continuous Power Dissiation
(Note 3)
Storage Temperature Range
Lead Temperature
(Soldering, 5 Sec.)
ESD Rating (Note 4)
Human-body model
Machine model
150C
Internally Limited
-65C to 150C
260C
2 kV
200V
Operating Ratings
(Notes 1, 2)
Input Voltage Range (Note 5)
Output Voltage Range (Note 5)
Junction Temperature Range
(Note 6)
Ambient Temperature Range
(Note 6)
3.0V to 5.5V
2.0V to 5.5V
-40C to 105C
-40C to 85C
Thermal Information
Junction-to-Ambient Thermal
Resistance, LLP-10 Package (
θ
JA
)
(Note 7)
55C/W
Electrical Characteristics
Limits in standard typeface and typical values apply for T
J
= 25
o
C. Limits in
boldface
type apply over the operating junction
temperature range. Unless otherwise specified: V
IN
= 5V, V
OUTX
= 3.6V, R
SET
= 8.25k
, V(EN) = V
IN
, V(BR-ON) = 0V
Symbol
Parameter
Conditions
3.0V
≤
V
IN
≤
5.5V
2.0V
≤
V
OUTX
≤
(V
IN
- 0.7V)
R
SET
= 4.99k
3.0V
≤
V
IN
≤
5.5V
2.0V
≤
OUTX
≤
(V
IN
- 0.42V)
R
SET
= 8.25k
3.0V
≤
V
IN
≤
5.5V
2.0V
≤
V
OUTX
≤
(V
IN
- 0.28V)
R
SET
= 12.4k
(Notes 2, 8)
Min
Typ
Max
Units
I
OUTX
Output Current Regulation
(Note 5)
22.54
(-8%)
24.5
26.46
(+8%)
mA
( % )
13.80
(-8%)
15.0
16.20
(+8%)
9.20
(-8%)
10.0
10.80
(+8%)
I
OUTX-BRGT
Analog Brightness Control
Current Regulation
V(BRGT) = 3.0V, V(BR-ON) = V
IN
13.83
(-6.5%)
14.8
15.77
(+6.5%)
250
mA
( % )
μA
V(BRGT) = 0V, V(BR-ON) = V
IN
100
I
OUT-MATCH
Current Matching Between
Any Two Outputs
I
SET
Pin Voltage
0.5
4
%
V
SET
1.147
(-6%)
95
(-5%)
1.22
1.293
(+6%)
105
(+5%)
V
( % )
I
OUTX
/I
SET
Output Current to Current
Set Ratio
100
V
HR
Current Source Headroom
Voltage (Note 5)
I
OUT
= 95% x I
OUT
(nom)
R
SET
= 4.99k
(I
OUT
(nom) approx. 25mA)
I
OUT
= 95% x I
OUT
(nom)
R
SET
= 12.4k
(I
OUT
(nom) approx. 10mA)
I
OUTX
= 0mA, V(BR-ON) = V
IN
, R
SET
=
Open
I
OUTX
= 0mA, V(BR-ON) = V
IN
, R
SET
=
8.25k
EN = 0, V(BR-ON) = V
IN
3.0V
≤
V
IN
≤
5.5V
3.0V
≤
V
IN
≤
5.5V
3.0V
≤
V
IN
≤
5.5V
3.0V
≤
V
IN
≤
5.5V
500
690
mV
200
280
I
Q
Quiescent Supply Current
200
300
μA
350
I
SD
V
EN-IH
V
EN-IL
V
BRON-IH
V
BRON-IL
Shutdown Supply Current
EN Input Logic High
EN Input Logic Low
BR-ON Input Logic High
BR-ON Input Logic Low
0.03
1
μA
V
V
V
V
1.2
0
V
IN
.5
V
IN
.65 x V
IN
0
.35 x V
IN
L
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3
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