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參數(shù)資料
| 型號： | FA13845N |
| 廠商： | FUJI ELECTRIC CO LTD |
| 元件分類： | 穩(wěn)壓器 |
| 英文描述： | CMOS IC(For Switching Power Supply Control) |
| 中文描述： | 1 A SWITCHING CONTROLLER, 500 kHz SWITCHING FREQ-MAX, PDSO8 |
| 封裝： | SOP-8 |
| 文件頁數(shù)： | 3/15頁 |
| 文件大小： | 151K |
| 代理商： | FA13845N |
FA13842, 13843, 13844, 13845
3
Current sensing section
Item
Voltage gain
Maximum input signal
Input bias current
Delay to output
Symbol
A
V IS
V
TH IS
I
IS
T
PD
Test condition
Tj=25C
FB=0V
Min.
2.85
0.9
Typ.
3
1.0
–1
150
Max.
3.15
1.1
–5
300
Unit
V/V
V
μ
A
ns
Tj=25C, ISNS to OUT
I
Electrical characteristics
(Vcc=15V, R
T
=10k
, C
T
=3.3nF, Ta=25C)
Reference voltage section
Item
Reference voltage
Line regulation
Load current regulation
Temperature regulation
Output current at short-circuit
Symbol
V
REF
L
INE
L
OAD
V
TC
I
OS
Test condition
Tj=25C, I
L
=1mA
Vcc=10 to 25V
I
L
=0 to 20mA
Ta=–25 to 85C
Tj=25C
Min.
4.75
Typ.
5.00
±
3
±
3
±
0.3
60
Max.
5.25
±
20
±
25
Unit
V
mV
mV
mV/C
mA
I
Recommended operating conditions
Item
Supply voltage
Oscillation timing capacitor
Oscillation timing resistor
Oscillation frequency
Symbol
V
CC
C
T
R
T
f
OSC
Min.
10
0.47
2.0
10
Max.
25
10
100
500
Unit
V
nF
k
kHz
Oscillator section
Error amplifier section
Item
Input voltage
Input leak current
Open-loop gain
Unity gain bandwidth
Output source current
Output sink current
Output voltage
Symbol
V
FB
I
FB
A
V
f
T
I
SOURCE
I
SINK
V
H COMP
V
L COMP
Test condition
COMP=2.5V, Tj=25C
Min.
2.4
Typ.
2.5
Max.
2.6
±
2
Unit
V
μ
A
dB
MHz
mA
mA
V
mV
65
0.7
–0.8
2
4.0
72
1
–1.0
15
4.5
80
FB=2.3V, COMP=0V
FB=2.7V, COMP=1V
FB=2.3V, R
L
=15k
to GND
FB=2.7V, R
L
=15k
to VREF
500
Item
Oscillation frequency
Symbol
f
OSC
Test condition
Tj=25C
Ta=–25 to 85C
Vcc=10 to 25V
Ta=–25 to 85C
Tj=25C
Tj=25C
Min.
49
47
Typ.
52
Max.
55
57
±
1
Unit
kHz
kHz
%
%/C
V
mA
Voltage stability
Temperature stability
Oscillation amplitude
Discharge current
fdv
fdt
V
OSC
I
DISCHG
±
0.25
–0.07
1.6
8.4
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