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參數(shù)資料
| 型號： | LX1571IDM-TR |
| 廠商： | MICROSEMI CORP-ANALOG MIXED SIGNAL GROUP |
| 元件分類： | 穩(wěn)壓器 |
| 英文描述： | 1 A SWITCHING CONTROLLER, PDSO8 |
| 封裝： | LEAD FREE, PLASTIC, SOIC-8 |
| 文件頁數(shù)： | 6/12頁 |
| 文件大?。?/td> | 293K |
| 代理商： | LX1571IDM-TR |
PHASE MODULATED AC SYNCHRONOUS SECONDARY-SIDE CONTROLLER
LX1570/1571
PRODUCT DA T ABOOK 1996/1997
3
Copyright 1997
Rev. 0.9.3a 9/15/2004
P RELIMINAR Y D AT A S HEET
Input Range
LX1570
V
CSI
LX1571
Input Current
LX1570
I
CSB
LX1571
C.S. Amplifier Gain
LX1570
A
CS
LX1571
Minimum Current Threshold Voltage
LX1570
V
CSMIN
LX1571
C.S. Delay to Driver Output
10% Overdrive
C.L. Pulse-By-Pulse Threshold Voltage
LX1570
V
CLP
LX1571
C.L. Hiccup Threshold Voltage
LX1570
V
CLH
LX1571
Voltage Hiccup Threshold
V
HCCP
Initial Accuracy
f
O
C
T =
, T
J = 25°C, measured at pin 6
Over Temp, measured at pin 6
Line Voltage Stability
f
OL
Charging Current
I
CHG
Discharging Current
I
DISCH
Leakage Current
I
LK
C.S.
INPUT = 1.5V
Ramp PK to PK
V
RPP
C.S.
INPUT = 0V
C.S.
INPUT = 1.5V (1571), C.S.INPUT = -0.4V (1570)
ELECTRICAL CHARACTERISTICS
Reference Section
Parameter
Symbol
Test Conditions
Initial Accuracy
V
RI
T
A = 25C, measured at F.B pin
Line Regulation
V
RL
11V < V
CC < 25
Temp Stability
V
RT
Note 2
Units
LX1570/1571
Min.
Typ.
Max.
2.475
2.500
2.525
V
±1
%
±1.5
%
Timing Section
90
100
110
kHz
85
100
115
kHz
±1
%
3mA
3.5
mA
4A
0.6
V
6V
Error Amp / Soft Start Comp Section
Transconductance
g
m
Input Bias Current
I
B
Open Loop Gain
A
VOL
Output Sink Current
I
EA(SINK)
V
FB = 2.6V
Output Source Current
I
EA(SOURCE)
V
FB = 2.4V
Output HI Voltage
V
COMP-HI
Output LO Voltage
V
COMP-LO
Slew Rate
S
0.005
0.1
1
A
60
70
dB
200
400
A
200
400
A
5.1
V
0.8
V
1
V/Sec
(Unless otherwise specified, these specifications apply over the ranges T
A = -55 to 125C for the LX1570M/1571M, TA = -40 to 85C for the
LX1570I/1571I, and T
A = 0 to 70C for LX1570C/1571C.
V
CC = 15V.
Typ. number represents T
A = 25C value.)
Soft-Start Section
Soft Start Timing Factor
K
SS
Soft Start Discharge Current
I
SS-DIS
35
50
65
ms/F
TBD
mA
Current Sense Section
-0.8
V
-0.3
6
V
25
A
1A
-13.5
-15
-16.5
V/V
2.7
3
3.3
V/V
-50
mV
250
mV
100
200
ns
-0.18
-0.2
-0.22
V
0.9
1
1.1
V
-0.3
V
1.5
V
2V
Note 2. Although this parameter is guaranteed, it is not 100% tested in production.
相關PDF資料 |
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| LX1570IDMT | 1 A SWITCHING CONTROLLER, 100 kHz SWITCHING FREQ-MAX, PDSO8 |
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| LX1571CM | 1 A SWITCHING CONTROLLER, 100 kHz SWITCHING FREQ-MAX, PDIP8 |
| LX1571IDM | 1 A SWITCHING CONTROLLER, 100 kHz SWITCHING FREQ-MAX, PDSO8 |
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