參數(shù)資料
型號： XC6372A501PR
英文描述： Analog IC
中文描述： 模擬IC
文件頁數(shù)： 7/10頁
文件大小： 59K
代理商： XC6372A501PR
e
-58
I
Electrical Characteristics
XC6372E501PR
V
OUT
=5.0V,F
OSC
=100kH
Z
PARAMETER
Output Voltage
Maximum Input Voltage
Operation Start-up Voltage
XC6372F501PR
Ta=25
:
V
OUT
=5.0V,F
OSC
=100kH
Z
PARAMETER
Output Voltage
Maximum Input Voltage
Operation Start-up Voltage
Oscillation Start-up Voltage
V
OUT
V
IN
V
ST
1
V
ST
2
I
DD
1
I
DD
2
REXTH
REXTL
FOSC
MAXDTY
PFMDTY
EFFI
TSS
Supply Current 1(Note1)
Supply Current 2
EXT "High" On Resistance
EXT "Low" On Resistance
Oscillator Frequency(Note2)
Maximum Duty Ratio
PFM Duty Ratio(Note3)
Efficiency
Slow-Start Time
SYMBOL
CONDITIONS
External Components Connected. I
OUT
=1mA.
No external components.
Apply voltage to V
OUT
.
Same as V
ST
2
.
Apply output
voltage
0.95 to V
OUT
.
Same as V
ST
2
.
Apply output
voltage
1.1 to V
OUT
.
Same as I
DD
1. V
EXT
=V
OUT
–0.4V
Same as I
DD
1. V
EXT
=0.4V
Same as I
DD
1. Measuring of
EXT
waveform.
Same as I
DD
1. Measuring of
EXT
waveform.
Same as I
DD
1. Measuring of
EXT
waveform.
MIN
48.75
TYP
5.000
MAX
5.125
UNITS
V
10
V
0.90
V
0.80
V
40.0
66.8
μ
A
8.2
16.5
μ
A
37.5
62.5
30
50
85
100
115
kHz
80
87
92
%
10
17
25
%
85
%
4.0
10.0
20.0
ms
Ta=25
:
Oscillation Start-up Voltage
No Load Input Voltage
Supply Current 1(Note2)
Supply Current 2
Lx Switch-On Resistance
Lx Leakage Current
Oscillator Frequency(Note 3)
Maximum Duty Ratio
PFM Duty Ratio(Note 4)
Efficiency
Slow-Start Time
Measuring conditions: Unless otherwise specified, connect V
DD
to V
OUT
. V
IN
=V
OUT
0.6, I
OUT
=50mA. See Typical Application Circuits,Fig.5.
1. The Schottky diode (SD) must be type MA735, with reverse current (IR)<1.0
μ
A 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 actually provided by external V
IN
source is represented by "No-Load Input Current (I
IN
)".
3. When PWM operates.
4. When PFM operates.
C
When the V
DD
and V
OUT
pins are independently used, the voltage range at the V
DD
pin should be 2.2V to 10V.
The IC operates from V
DD
=0.8V. However, output voltage and oscillator frequency are properly stabilized when V
DD
=2.2V or higher.
Lx Limit Voltage
SYMBOL
V
OUT
V
IN
V
ST1
V
ST2
I
IN
I
DD
1
I
DD
2
RSWON
I
LXL
FOSC
MAXDTY
PFMDTY
EFFI
TSS
VL
X
LMT
CONDITIONS
External Components Connected, I
OUT
=1mA.
No external components. Apply voltage to V
OUT.
V
IN
=V
OUT
0.8,I
OUT
=0mA(Note1)
Same as V
ST
2.
Apply output voltage
0.95 to V
OUT
.
Same as V
ST
2.
Apply output voltage
1.1 to V
OUT
.
Same as I
DD
1. V
OUT
=V
LX
=0.4V.
No external components. V
OUT
=V
LX
=10V.
Same as I
DD
1.
Measuring of Lx waveform.
Same as I
DD
1.
Measuring of Lx waveform.
Same as I
DD
1.
Measuring of Lx waveform.
Same as I
DD
1 Apply output
voltage to Lx.
Voltage required to produce FOSC
2.
MIN
48.75
10
85
80
10
4.0
0.7
TYP
5.000
12.8
80.2
8.2
1.4
100
87
17
85
10.0
MAX
5.125
0.90
0.80
25.7
133.8
16.5
2.4
1.0
115
92
25
20.0
1.3
UNITS
V
V
V
V
μ
A
μ
A
μ
A
μ
A
kHz
%
%
%
ms
V
Note:
Measuring conditions: Unless otherwise specified,connect V
DD
to V
OUT,
V
IN
=V
OUT
0.6, I
OUT
=50mA. See Typical Application Circuits,Fig.6.
1. "Supply Current 1" is the supply current while the oscillator is continuously oscillating. In an actual operation the oscillator periodically operates which results
in less average power consumption.
2. When PWM operates.
3. When PFM operates.
C
When the V
DD
and V
OUT
pins are independently used, the voltage range at the V
DD
pin should be 2.2V to 10V.
The IC operates from V
DD
=0.8V. However, output voltage and oscillator frequency are properly stabilized when V
DD
=2.2V or higher.
Note:
221
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