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FA13842 の電気的特性と機能

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。


製品の詳細 ( Datasheet PDF )

部品番号 FA13842
部品説明 CMOS IC(For Switching Power Supply Control)
メーカ Fuji Electric
ロゴ Fuji Electric ロゴ 




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FA13842 Datasheet, FA13842 PDF,ピン配置, 機能
FA13842,13843,13844,13845
CMOS IC
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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 pdf, ピン配列
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=10k, 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=15kto GND
FB=2.7V, RL=15kto 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
k
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 電子部品, 半導体
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



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共有リンク

Link :


部品番号部品説明メーカ
FA13842

CMOS IC(For Switching Power Supply Control)

Fuji Electric
Fuji Electric
FA13842N

CMOS IC(For Switching Power Supply Control)

Fuji Electric
Fuji Electric
FA13842P

CMOS IC(For Switching Power Supply Control)

Fuji Electric
Fuji Electric
FA13843N

CMOS IC(For Switching Power Supply Control)

Fuji Electric
Fuji Electric


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