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FA13842のメーカーはFuji Electricです、この部品の機能は「CMOS IC(For Switching Power Supply Control)」です。 |
部品番号 | FA13842 |
| |
部品説明 | CMOS IC(For Switching Power Supply Control) | ||
メーカ | Fuji Electric | ||
ロゴ | |||
このページの下部にプレビューとFA13842ダウンロード(pdfファイル)リンクがあります。 Total 15 pages
FA13842,13843,13844,13845
CMOS IC
For SFwAit1c3h8in4g2,P1o3w8e4r3S, u1p3p8l4y4C, o1n3t8r4o5l
s Description
The FA1384X series are CMOS current mode control ICs for
off-line and DC-to-DC converters.
These ICs can reduce start-up circuit loss and are optimum for
high efficiency power supplies because of the low power
dissipation achieved through changes in the CMOS fabrication
process.
These ICs can drive a power MOSFET directly.
The high-performance, compact power supply can be
designed with minimal external components .
s Features
• CMOS process
• Low-power dissipation
• Standby current 2µA (max.), start-up current 30µA (max.)
• Pulse-by-pulse current limiting
• 5V bandgap reference
• UVLO (Undervoltage lockout) with hysteresis
• Maximum duty cycle FA13842, 13843: 96%
FA13844, 13845: 48%
• Pin-for-pin compatible with UC384X
Note: Pins are fully compatible, but characteristics are not.
When our ICs are applied to a power supply circuit
designed for other manufactures' 384X series, the
characteristics and safety features of the power supply
must be checked.
s Types of FA1384X series
Type
UVLO
Maximum duty Package
Start threshold Stop threshold cycle
FA13842P 16.5V±1V
9V± 1V
96%
DIP
FA13842N
SOP
FA13843P 9.6V±1V
9V± 1V
96%
DIP
FA13843N
SOP
FA13844P 16.5V±1V
9V± 1V
48%
DIP
FA13844N
SOP
FA13845P 9.6V±1V
9V± 1V
48%
DIP
FA13845N
SOP
s Dimensions, mm
SOP-8
85
14
4.9
0.4±0.1 1.27±0.2
DIP-8
8
5
1 9.3 4
1.5
2.54±0.25 0.46±0.1
7.62
0~15˚
0.25+–00.1.05
0~15˚
1
1 Page FA13842, 13843, 13844, 13845
s Recommended operating conditions
Item
Supply voltage
Oscillation timing capacitor
Oscillation timing resistor
Oscillation frequency
Symbol
VCC
CT
RT
fOSC
Min.
10
0.47
2.0
10
Max.
25
10
100
500
s Electrical characteristics (Vcc=15V, RT=10kΩ, CT=3.3nF, Ta=25˚C)
Reference voltage section
Item
Reference voltage
Line regulation
Load current regulation
Temperature regulation
Output current at short-circuit
Symbol
VREF
LINE
LOAD
VTC
IOS
Test condition
Tj=25˚C, IL=1mA
Vcc=10 to 25V
IL=0 to 20mA
Ta=–25 to 85˚C
Tj=25˚C
Min.
4.75
Oscillator section
Item
Oscillation frequency
Voltage stability
Temperature stability
Oscillation amplitude
Discharge current
Symbol
fOSC
fdv
fdt
VOSC
IDISCHG
Test condition
Tj=25˚C
Ta=–25 to 85˚C
Vcc=10 to 25V
Ta=–25 to 85˚C
Tj=25˚C
Tj=25˚C
Min.
49
47
Error amplifier section
Item
Input voltage
Input leak current
Open-loop gain
Unity gain bandwidth
Output source current
Output sink current
Output voltage
Symbol
VFB
IFB
AV
fT
ISOURCE
ISINK
VH COMP
VL COMP
Test condition
COMP=2.5V, Tj=25˚C
Min.
2.4
FB=2.3V, COMP=0V
FB=2.7V, COMP=1V
FB=2.3V, RL=15kΩ to GND
FB=2.7V, RL=15kΩ to VREF
65
0.7
–0.8
2
4.0
Current sensing section
Item
Voltage gain
Maximum input signal
Input bias current
Delay to output
Symbol
AV IS
VTH IS
IIS
TPD
Test condition
Tj=25˚C
FB=0V
Tj=25˚C, ISNS to OUT
Min.
2.85
0.9
Unit
V
nF
kΩ
kHz
Typ.
5.00
±3
±3
±0.3
60
Typ.
52
±0.25
–0.07
1.6
8.4
Typ.
2.5
72
1
–1.0
15
4.5
80
Typ.
3
1.0
–1
150
Max.
5.25
±20
±25
Max.
55
57
±1
Max.
2.6
±2
500
Max.
3.15
1.1
–5
300
Unit
V
mV
mV
mV/˚C
mA
Unit
kHz
kHz
%
%/˚C
V
mA
Unit
V
µA
dB
MHz
mA
mA
V
mV
Unit
V/V
V
µA
ns
3
3Pages FA13842, 13843, 13844, 13845
ISNS threshold voltage vs. COMP voltage
1200
1000
VCC= 15V
FB= 0V
OUT= off
800
600
400
200
0
0 1 234
COMP voltage (V)
COMP source current vs. COMP voltage
0
–200
–400
–600
–800
–1000
–1200
5 012 3 4
COMP voltage (V)
5
COMP to ISNS offset voltage vs. temperature
2.5
2
1.5
1
0.5
0
–50
0 50 100
Temperature (˚C)
150
Error amp open loop voltage gain and phase vs.
frequency
100
0
80
60 Phase
40
Gain
20
0 180
–20
–40
10
100 1.0k 10k 100k 1.0M 10M
Frequency (Hz)
COMP source current vs. temperature
–800
–900
VCC= 15V
COMP= 0V
–1000
–1100
–1200
–1300
–1400
–50
0 50 100
Temperature (˚C)
VREF short circuit current vs. temperature
80
VCC= 15V
VREF= 0V
70
60
50
40
30
20
0 50 100
Temperature (˚C)
150
150
6
6 Page | |||
ページ | 合計 : 15 ページ | ||
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PDF ダウンロード | [ FA13842 データシート.PDF ] |
データシートを活用すると、その部品の主な機能と仕様を詳しく理解できます。 ピン構成、電気的特性、動作パラメータ、性能を確認してください。 |
部品番号 | 部品説明 | メーカ |
FA13842 | CMOS IC(For Switching Power Supply Control) | Fuji Electric |
FA13842N | CMOS IC(For Switching Power Supply Control) | Fuji Electric |
FA13842P | CMOS IC(For Switching Power Supply Control) | Fuji Electric |
FA13843N | CMOS IC(For Switching Power Supply Control) | Fuji Electric |