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参数资料
| 型号： | FA13845N |
| 元件分类： | 稳压器 |
| 英文描述： | 1 A SWITCHING CONTROLLER, 57 kHz SWITCHING FREQ-MAX, PDSO8 |
| 封装： | SOP-8 |
| 文件页数： | 9/15页 |
| 文件大小： | 151K |
| 代理商： | FA13845N |
FA13842, 13843, 13844, 13845
3
Current sensing section
Item
Symbol
Test condition
Min.
Typ.
Max.
Unit
Voltage gain
AV IS
Tj=25C
2.85
3
3.15
V/V
Maximum input signal
VTH IS
FB=0V
0.9
1.0
1.1
V
Input bias current
IIS
–1
–5
A
Delay to output
TPD
Tj=25C, ISNS to OUT
150
300
ns
s Electrical characteristics (Vcc=15V, RT=10k
, CT=3.3nF, Ta=25C)
Reference voltage section
Item
Symbol
Test condition
Min.
Typ.
Max.
Unit
Reference voltage
VREF
Tj=25C, IL=1mA
4.75
5.00
5.25
V
Line regulation
LINE
Vcc=10 to 25V
±3
±20
mV
Load current regulation
LOAD
IL=0 to 20mA
±3
±25
mV
Temperature regulation
VTC
Ta=–25 to 85C
±0.3
mV/C
Output current at short-circuit
IOS
Tj=25C
60
mA
s Recommended operating conditions
Item
Symbol
Min.
Max.
Unit
Supply voltage
VCC
10
25
V
Oscillation timing capacitor
CT
0.47
10
nF
Oscillation timing resistor
RT
2.0
100
k
Oscillation frequency
fOSC
10
500
kHz
Oscillator section
Error amplifier section
Item
Symbol
Test condition
Min.
Typ.
Max.
Unit
Input voltage
VFB
COMP=2.5V, Tj=25C
2.4
2.5
2.6
V
Input leak current
IFB
±2
A
Open-loop gain
AV
65
72
dB
Unity gain bandwidth
fT
0.7
1
MHz
Output source current
ISOURCE
FB=2.3V, COMP=0V
–0.8
–1.0
mA
Output sink current
ISINK
FB=2.7V, COMP=1V
2
15
mA
Output voltage
VH COMP
FB=2.3V, RL=15k
to GND
4.0
4.5
V
VL COMP
FB=2.7V, RL=15k
to VREF
80
500
mV
Item
Symbol
Test condition
Min.
Typ.
Max.
Unit
Oscillation frequency
fOSC
Tj=25C
49
52
55
kHz
Ta=–25 to 85C
47
57
kHz
Voltage stability
fdv
Vcc=10 to 25V
±0.25
±1%
Temperature stability
fdt
Ta=–25 to 85C
–0.07
%/C
Oscillation amplitude
VOSC
Tj=25C
1.6
V
Discharge current
IDISCHG
Tj=25C
8.4
mA
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PDF描述 |
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| FA13842P | 1 A SWITCHING CONTROLLER, 57 kHz SWITCHING FREQ-MAX, PDIP8 |
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