參數(shù)資料
型號: LM3552SDX
廠商: NATIONAL SEMICONDUCTOR CORP
元件分類: 顯示驅(qū)動器
英文描述: 1A White LED Driver with Flash Timeout Protection
中文描述: LED DISPLAY DRIVER, QCC14
封裝: 4 X 4 MM, LLP-24
文件頁數(shù): 3/15頁
文件大?。?/td> 756K
代理商: LM3552SDX
Absolute Maximum Ratings
(Notes 1, 2)
If Military/Aerospace specified devices are required,
please contact the National Semiconductor Sales Office/
Distributors for availability and specifications.
V
IN
pin: Voltage to GND
SW pin: Voltage to GND
FB pin: Voltage to GND
V
C
pin: Voltage to GND
SD,T/F pins: Voltage to GND
FET-T, FET-F: Voltage to GND
Continuous Power Dissipation (Note 3) Internally Limited
Junction Temperature (T
J-MAX )
Storage Temperature Range
Maximum Lead Temperature
(Soldering)
ESD Rating(Note 5)
Human Body Model
7.5V
21V
7V
1.26V
±
0.3V
7.5V
6V
150C
-65C to +150
(Note 4)
2.0kV
Operating Ratings
(Notes 1, 2)
Input Voltage Range
SW Voltage Max. (Note 6)
Junction Temperature (T
J
)
Range
Ambient Temperature (T
A
)
Range (Note 7)
2.7V to 5.5V
20V
-40C to +110C
-40C to +85C
Thermal Properties
Junction-to-Ambient Thermal
Resistance (
θ
JA
), SDA14B
Package (Note 8)
37.3C/W
ESD Caution Notice
ate ESD precautions. Failure to observe proper ESD handling techniques can result in damage to the device.
Electrical Characteristics
(Notes 2, 9)
Limits in standard typeface are for T
= +25 C. Limits in boldface type apply over the full operating junction temperature range
(-40C
T
J
+110C). Unless otherwise noted, specifications apply to the LM3551 and LM3552 Typical Application Circuit (pg.
1) with: V
IN
= 3.6V, V(SD) = 0V for LM3551 and V(EN) = V
IN
for LM3552, I
LOAD
= 0A (Note 10)
Symbol
Parameter
Conditions
Quiescent Current
FB = V
IN
(Not Switching)
V(SD) = V
IN
LM3551
V(EN) = 0V
LM3552
I
CL(Note 11)
Switch Current Limit
V
IN
= 3.0V(Note 12)
V
FB
Feedback Voltage
I
FB(Note 13)
Feedback Pin Bias Current
Error Amp
Transconductance
A
V
Error Amp Voltage Gain
D
MAX
Maximum Duty Cycle
f
sw
Switching Frequency
Shutdown Pin Current
(LM3551)
Enable Pin Current
(LM3552)
V
T/F
= 0V
V
T/F
= V
IN
I
L-SW
SW Pin Leakage Current
V
L-SW
= 20V
R
DSON-SW
SW Pin R
DSON
I
SW
= 0.5A
I
L-T
FET-T Leakage Current
R
DSON-T
FET-T R
DSON
I
L-F
FET-F Leakage Current
R
DSON-F
FET-F R
DSON
Shutdown/Enable Pin
Threshold
Output Low
National Semiconductor recommends that all integrated circuits be handled with appropri-
Min
Typ
1.47
Max
2.0
Units
mA
I
Q
I
SD
Shutdown Current
2.55
5.0
μA
0.1
2.3
2.1
1.265
50
A
V
nA
1.2285
1.2915
g
m
I = 5μA
135
μmho
135
92.5
1.25
V/V
%
MHz
0.9
1.6
I
SDPIN
V
SD
= 0V
3.0
6
μA
I
ENPIN
V
EN
= 3.6V
3.0
6
μA
I
T/FPIN
T/F Pin Current
26
22
0.07
0.165
0.1
0.98
0.1
0.36
nA
8
μA
μA
μA
Th
SD/EN
Output High
1.2
V
0.3
L
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相關(guān)PDF資料
PDF描述
LM3552 1A White LED Driver with Flash Timeout Protection
LM3551 1A White LED Driver with Flash Timeout Protection
LM3595 The LM3595 is a parallel white-LED driver that is capable of driving four white LEDs.
LM3595LD The LM3595 is a parallel white-LED driver that is capable of driving four white LEDs.
LM3595LDX The LM3595 is a parallel white-LED driver that is capable of driving four white LEDs.
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