參數資料
型號： SG2843M
廠商： MICROSEMI CORP-ANALOG MIXED SIGNAL GROUP
元件分類： 穩(wěn)壓器
英文描述： CURRENT MODE PWM CONTROLLER
中文描述： 1 A SWITCHING CONTROLLER, 500 kHz SWITCHING FREQ-MAX, PDIP8
封裝： ROHS COMPLIANT, PLASTIC, DIP-8
文件頁數： 3/14頁
文件大?。?/td> 224K
代理商： SG2843M
C
U R R E N T
-M
O D E
PWM C
O N T R O L L E R
SG1842/SG1843 Series
P R O D U C T D A T A B O O K 1 9 9 6 / 1 9 9 7
3
Copyright 2000
Rev. 1.6 4/00
P
R O D U C T I O N
D
A T A
S
H E E T
E L E C T R I C A L C H A R A C T E R I S T I C S
(Unless otherwise specified, these specifications apply over the operating ambient temperatures for SG1842/SG1843 with -55°C
≤
T
≤
125°C, SG2842/
SG2843 with -25°C
≤
T
≤
85°C, SG3842/SG3843 with 0°C
≤
T
≤
70°C, V
= 15V (Note 7), R
= 10k
, and C
T
= 3.3nF. Low duty cycle pulse testing
techniques are used which maintains junction and case temperatures equal to the ambient temperature.)
Reference Section
Output Voltage
Line Regulation
Load Regulation
Temperature Stability (Note 4)
Total Output Variation (Note 4)
Output Noise Voltage (Note 4)
Long Term Stability (Note 4)
Output Short Circuit
Oscillator Section
Initial Accuracy
Voltage Stability
Temperature Stability (Note 4)
Amplitude
Discharge Current
Parameter
Symbol
Test Conditions
T
J
= 25°C, I
O
= 1mA
12
≤
V
IN
≤
25V
1
≤
I
O
≤
20mA
Line, Load, Temp.
10Hz
≤
f
≤
10kHz, T
J
= 25°C
T
A
= 125°C, 1000hrs
V
N
SG3842/43
Units
Min. Typ. Max. Min. Typ. Max. Min. Typ. Max.
SG2842/43
4.95 5.00 5.05 4.95 5.00 5.05 4.90 5.00 5.10
6
20
6
6
25
6
0.2
0.4
0.2
4.90
5.10 4.90
50
50
5
25
5
-30
-100 -180
-30
-100 -180
V
20
25
0.4
5.10 4.82
6
6
20
25
0.4
5.18
mV
mV
mV/°C
V
μV
mV
mA
0.2
50
5
-100 -180
25
25
-30
T
J
= 25°C
12
≤
V
CC
≤
25V
T
MIN
≤
T
A
≤
T
MAX
V
RT/CT
(Peak to Peak)
T
J
= 25°C
T
MIN
≤
T
A
≤
T
MAX
Error Amp Section
Input Voltage
Input Bias Current
Open Loop Gain
Unity Gain Bandwidth (Note 4)
Power Supply Rejection Ratio
Output Sink Current
Output Source Current
V
OUT
High
V
OUT
Low
V
COMP
= 2.5V
A
VOL
2
≤
V
O
≤
4V
T
J
= 25°C
12
≤
V
CC
≤
25V
V
VFB
= 2.7V, V
COMP
= 1.1V
V
VFB
= 2.3V, V
COMP
= 5V
V
VFB
= 2.3V, R
L
= 15K to gnd
V
VFB
= 2.7V, R
L
= 15K to V
REF
(Electrical Characteristics continue next page.)
PSRR
SG1842/43
47
52
0.2
5
1.7
8.3
57
1
47
52
0.2
5
1.7
8.4
57
1
47
52
0.2
5
1.7
8.4
57
1
kHz
%
%
V
mA
mA
7.8
7.0
8.8
9.0
7.5
7.2
9.3
9.5
7.5
7.2
9.3
9.5
2.45 2.50 2.55 2.45 2.50 2.55 2.42 2.50 2.58
-0.3
-1
-0.3
65
90
65
90
0.7
1
0.7
1
60
70
60
70
2
6
2
6
-0.5
-0.8
-0.5
-0.8
5
6
5
6
0.7
1.1
0.7
V
1
-0.3
90
1
70
6
-0.8
6
0.7
-2
μA
dB
MHz
dB
mA
mA
V
V
65
0.7
60
2
-0.5
5
1.1
1.1
Supply Voltage Range
Output Current (Peak)
Output Current (Continuous)
Analog Inputs (Pin 2, Pin 3)
Error Amp Output Sink Current
Oscillator Frequency Range
Oscillator Timing Resistor
Oscillator Timing Capacitor
Operating Ambient Temperature Range:
SG1842/43
SG2842/43
SG3842/43
Note 3. Range over which the device is functional.
R
T
C
T
R E C O M M E N D E D O P E R AT I N G C O N D I T I O N S
(Note 3)
Parameter
Symbol
Units
Recommended Operating Conditions
Min.
Typ.
Max.
30
±1
200
V
A
mA
V
mA
kHz
K
μF
0
2.6
5
0.1
0.52
0.001
500
150
1.0
-55
-25
0
125
85
70
°C
°C
°C
相關PDF資料
PDF描述
SG2843N CURRENT MODE PWM CONTROLLER
SG2843Y CURRENT MODE PWM CONTROLLER
SG2842D CURRENT MODE PWM CONTROLLER
SG2842DM CURRENT MODE PWM CONTROLLER
SG2842J CURRENT MODE PWM CONTROLLER
相關代理商/技術參數
參數描述
SG2843N 制造商:Microsemi Corporation 功能描述:SG2843N - Bulk
SG2843Y 制造商:Microsemi Corporation 功能描述:SG2843Y - Bulk
SG2844D 制造商:Microsemi Corporation 功能描述:CURRENT MODE PWM CNTRLR 200MA 14SOIC - Bulk
SG2844DM 功能描述:IC PWM CURRENT MODE 8SOIC RoHS:是 類別:集成電路 (IC) >> PMIC - AC-DC 轉換器，離線開關 系列:- 標準包裝:3,000 系列:- 輸出隔離:隔離 頻率范圍:61kHz ~ 71kHz 輸入電壓:9.4 V ~ 28 V 輸出電壓:12V 功率（瓦特）:- 工作溫度:-40°C ~ 125°C 封裝/外殼:SC-74，SOT-457 供應商設備封裝:6-TSOP 包裝:帶卷 (TR)
SG2844J 制造商:Microsemi Corporation 功能描述:SG2844J - Bulk
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