參數(shù)資料
型號： LM2707MF
廠商： NATIONAL SEMICONDUCTOR CORP
元件分類： 顯示驅(qū)動器
英文描述： Inductive-Boost Series LED Driver with Programmable Oscillator Frequency
中文描述： LED DISPLAY DRIVER, PDSO8
封裝： SOT-23, 8 PIN
文件頁數(shù)： 3/19頁
文件大?。?/td> 1039K
代理商： LM2707MF
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
, FB, and EN pins
SW and V
OVP
pins
Continuous Power Dissipation
(T
A
= 25
o
C)
Switch Peak Current
Junction Temperature (T
J-MAX
)
Storage Temperature Range
Maximum Lead Temperature
(Soldering)
ESD Rating (Note 4)
Human Body Model:
Machine Model:
-0.3V to 7.5V
-0.3V to 21V
800mW
400mA
150
o
C
-65
o
C to +150
o
C
(Note 3)
2kV
200V
Operating Ratings
(Notes 1, 2)
Input Voltage Range
Minimum C
X
Capacitance
Junction Temperature (T
J
) Range
Ambient Temperature (T
A
) Range
(Note 5)
2.3V to 7.0V
10pF
-30C to +125C
-30C to +85C
Thermal Properties
Juntion-to-Ambient Thermal
Resistance (
θ
JA
) (Note 6)
125
o
C/W
Electrical Characteristics
(Notes 2, 7)
Unless otherwise specified: V
IN
= 3.0V, L
x
= Open, V
OVP
= Open, V
FB
= GND, C
x
= 300pF, V
EN
= V
IN
, T
A
= 25C.
Symbol
Parameter
Oscillator Frequency Programming (C
x
pin)
I
chg
C
x
Charging Current
V
Cx
= 0.1V, V
FB
= 1V
I
dis
C
x
Discharging Current
V
Cx
= 1.0V, V
FB
= 1V
I
dis
/I
chg
Charge and Discharge Current
Ratio
V
Cx, High
C
x
Threshold Voltage +
V
Cx, Low
C
x
Threshold Voltage -
V
OSC
C
X
Oscillation Voltage
(V
Cx, High
) - (V
Cx, Low
)
Current Limiting Comparator (L
x
pin)
I
LIMIT
Inductor Current Limit
(Note 8)
R
IN
Pin 1-2 Total Resistance
Measured between pin 1 and pin 2
R
SC
Internal Effective Resistance for
Inductor Current Limit Sence
Output Switch Section (SW pin)
V
sw, DS
Output Transistor Drain-to-Source
Voltage
R
DS-ON
Switch ON Resistance
R
DS-ON
= V
sw,DS
÷ I
SW
I
sw,Off
Output Transistor Off Leak Current
V
FB
= 1V, V
SW
= 20V
Feedback Comparator section (FB pin)
V
ref
Reference Voltage
I
FBin
FB Pin Output Current
V
FB
= 0.4V
Shutdown Section (EN pin)
V
EN, High
EN Input Voltage +
ON mode
V
EN, Low
EN Input Voltage -
Shutdown Mode
I
ENin
EN pin Input Bias Current
V
EN
= 3.0V
Condition
Min
Typ
Max
Units
16
35
24
52
2.2
30
65
μA
μA
810
260
520
860
300
560
910
340
600
mV
mV
mV
220
380
260
440
300
300
500
mA
m
m
(Notes 9, 10)
V
Cx
= 0.1V, I
SW
= 200mA
0.12
0.22
V
V
Cx
= 0.1V, I
SW
= 200mA
0.60
1.1
0.01
2.0
μA
0.495
-0.2
0.515
-0.075
0.535
V
μA
1.2
7.0
0.3
40
V
V
μA
25
L
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