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參數(shù)資料
| 型號(hào)： | LM3590 |
| 廠商： | National Semiconductor Corporation |
| 元件分類(lèi)： | LED驅(qū)動(dòng)器 |
| 英文描述： | LM3590Series White LED Driver |
| 中文描述： | LM3590Series白光LED驅(qū)動(dòng)器 |
| 文件頁(yè)數(shù)： | 3/9頁(yè) |
| 文件大?。?/td> | 205K |
| 代理商： | LM3590 |
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
0.3 to 13.0V Max
0.3 to (V
IN
+0.3V) w/
13.0V max
Maximum Junction Temperature
(T
JMAX
)
Storge Temperature
Maximum Lead Temperature
(Soldering, 5 sec.)
ESD Rating (Note 3)
Human Body Model
Machine Model
150C
65C to +150C
260C
1.5kV
200V
Operating Conditions
Input Voltage Range
EN Voltage Range
Ambient Temperature (T
A
)
Range
(Note 4)
Junction Temperature (T
J
)
Range
6.0V to 12.6V
0V to V
IN
40C to +85C
40C to +110C
Thermal Information
Junction-to-Ambient Thermal
Resistance,
SOT23-5 Package (
θ
JA
) (Note 5)
220C/W
Electrical Characteristics
(Notes 2, 6)
Limits in standard typeface are for T
J
= 25C and limits in
boldface
type apply over the full Operating Junction Temperature
Range (40C
≤
T
J
≤
+110C). Unless otherwise specified, C
IN
= 1 μF, V
IN
= 12.0V, V
EN
= 3.0V, R
SET
= 6.19k
, V
IOUT
=
10.8V.
Symbol
I
OUT
Parameter
Conditions
Min
19
(5%)
19
(5%)
Typ
20
Max
21
(+5%)
21
(+5%)
Units
Output Current Capability
V
IN
= 12V
7.5V
≤
V
IOUT
≤
11.5V
V
IOUT
= 10.8V
11.3V
≤
V
IN
≤
12.6V
R
SET
= 8.35k
R
SET
= 12.5k
mA
20
15
10
Output Current Programming
125 ÷
R
SET
100:1
50
A
I
OUT
ratio to I
SET
Quiescent Supply Current
I
Q
11.3V
≤
V
IN
≤
12.6V
R
SET
= OPEN
I
OUT
= OPEN
V
IN
= 12.6V
V
EN
= 0V
75
μA
I
SD
Shutdown Supply Current
0.1
1
μA
V
ISET
V
HR
I
SET
Reference Voltage
Minimum Current Source
Voltage Headroom (V
IN
V
IOUT
)(Note 7)
Logic Input EN: High level
Logic Input EN: Low level
Enable Pin Input Current(Note 8)
Turn-On Time
1.25
300
V
I
OUT
= 95% nominal
mV
V
IH
V
IL
I
EN
t
ON
1.1
0
V
IN
0.3
V
V
μA
μs
6
50
I
OUT
= 90% of steady state
Note 1:
Absolute Maximum Ratings indicate limits beyond which damage to the device may occur. Operating Ratings are conditions under which operation of the
device is guaranteed. Operating Ratings do not imply guaranteed performance limits. For guaranteed performance limits and associated test conditions, see the
Electrical Characteristics table.
Note 2:
All voltages are with respect to the potential at the GND pin.
Note 3:
The human-body model is a 100pF capacitor discharged through a 1.5k
resistor into each pin. The machine model is a 220pF capacitor discharged
directly into each pin.
Note 4:
Maximum ambient temperature (T
A-MAX
) is dependent on the maximum operating junction temperature (T
= 110
o
C), the maximum power
dissipation of the device in the application (P
D-MAX
), and the junction-to-ambient thermal resistance of the part/package in the application (
θ
), as given by the
following equation: T
A-MAX
= T
J-MAX-OP
- (
θ
JA
D-MAX
). The ambient temperature operating rating is provided merely for convenience. This part may be operated
outside the listed T
A
o
C.
Note 5:
Junction-to-ambient thermal resistance is highly application and board-layout dependent. In applications where high maximum power dissipation exists,
special care must be paid to thermal dissipation issues. For more information on these topics, please refer to the
Power Dissipation
section of this datasheet.
L
www.national.com
3
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