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參數(shù)資料
| 型號： | ILC6391CP-25 |
| 廠商： | Impala Linear Corporation |
| 英文描述： | SOT-89 STEP-UP PFM SWITCHER WITH AUTO-LOAD SENSE |
| 中文描述： | 采用SOT - 89升壓烤瓷切換與自動負載檢測 |
| 文件頁數(shù)： | 2/9頁 |
| 文件大小： | 525K |
| 代理商： | ILC6391CP-25 |
SOT-89 Step-Up PFM Switcher with Auto-Load Sense
Impala Linear Corporation
2
(408) 574-3939
www.impalalinear.com
Feb 2001
ILC6390 1.1
Parameter
Symbol
V
OUT
VL
X
IL
X
V
EXT
I
EXT
V
CE
V
DD
P
D
(SOT-25)
P
D
(SOT-89)
T
opr
T
stg
Ratings
12
12
400
Units
V
V
mA
V
mA
V
V
mW
V
OUT
Input Voltage
Voltage on pin L
X
Current on pin L
X
Voltage on pin EXT
Current on pin EXT
CE Input Voltage
V
DD
Input Voltage
Continuous Total Power Dissipation
V
SS
-0.3~V
OUT
+0.3
±50
12
12
150
500
-30~+80
-40~+125
Operating Ambient Temperature
Storage Temperature
°C
°C
Parameter
Symbol
V
OUT
V
IN
V
ST
V
HLD
I
IN
I
DD
1
I
DD
2
R
SWON
I
LXL
Conditions
Min
4.875
0.70
Typ
5.000
0.80
5.3
31.7
2.4
2.8
Max
5.125
10
0.9
10.6
63.4
4.8
4.3
1.0
Units
V
V
V
V
μA
μA
μA
μA
Output Voltage
Input Voltage
Oscillation Startup Voltage
Oscillation Hold Voltage
NO-Load Input Current
Supply Current 1 (See Note 2)
Supply Current 2
L
X
Switch-On Resistance
L
X
Leakage Current
Test Circuit of Figure 1
I
OUT
= 1mA
I
OUT
= 1mA
I
OUT
= 0mA
(See Note 1)
V
OUT
= 4.75V
V
OUT
= 5.5V
V
OUT
= 4.75V, VL
X
= 0.4
No external components, V
OUT
=
VL
X
= 10V
V
OUT
= 4.75V, Measuring of L
X
waveform
V
OUT
= 4.75V, Measuring of L
X
on-time
V
OUT
= 4.75V, 75% duty
V
OUT
= 4.75V, 55% duty
V
OUT
= 4.75V
V
OUT
= 4.75V, Existance of L
X
Oscillation
V
OUT
= 4.75V, Disappearance of
L
X
Oscillation
V
CE
= V
OUT
x 0.95
V
OUT
= 4.75V, V
CE
= 0V
V
OUT
= 4.75V, fosc > MFO x 2
(See Note 3)
Duty Ratio 1
DUTY 1
70
75
80
%
Duty Ratio 2
DUTY 2
50
55
60
%
Maximum Oscillation Freq. 1
Maximum Oscillation Freq. 2
Stand = by Current
CE “High” Voltage
MFO 1
MFO 2
I
STB
V
CEH
85
153
0.75
100
180
115
207
0.5
kHz
kHz
μA
V
CE “Low” Voltage
V
CEL
0.20
V
CE “High” Current
CE “Low” Current
L
X
Limit Voltage
I
CEH
I
CEL
V
LXLMT
0.25
-0.25
1.1
μA
μA
V
0.7
Note:
1. The Schottky diode (S.D.), in figure 3 must be type MA735, with Reverse current (IR) < 1.0μA at reverse voltage (VR)=10.0V
2. “Supply Current 1” is the supply current while the oscillator is continuously oscillating. In actual operation the oscillator periodically operates which
results in less average power consumption.
The current that is actually provided by external V
IN
source is represented by “No-Load Input Current”
3. The switching frequency is determined by the delay time of the internal comparator and MFO1, which sets the min. on-time
Absolute Maximum Ratings (T
A
= 25°C)
Electrical Characteristics ILC6390
V
OUT
= 5.0V T
A
= 25°C. Unless otherwise specified, V
IN
= V
OUT
x 0.6, I
OUT
= 50mA. See schematic, fig. 3.
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