參數資料
型號: LT1509ISW
廠商: LINEAR TECHNOLOGY CORP
元件分類: 穩(wěn)壓器
英文描述: COMBO-D
中文描述: 1.5 A POWER FACTOR CONTROLLER WITH POST REGULATOR, 300 kHz SWITCHING FREQ-MAX, PDSO20
封裝: 0.300 INCH, PLASTIC, SO-20
文件頁數: 3/16頁
文件大?。?/td> 348K
代理商: LT1509ISW
3
LT1509
ELECTRICAL C
Maximum operating voltage (V
MAX
) = 25V, V
CC
= 18V, R
SET
= 15k to GND, C
SET
= 1nF to GND, I
AC
= 100
μ
A, I
SENSE
= 0V, CA
OUT
= 3.5V,
VA
OUT
= 5V, OVP = V
REF
. No load on any outputs unless otherwise noted.
HARA TERISTICS
PARAMETER
Current Amplifier (PFC Section)
Current Amp Offset Voltage
I
SENSE
Bias Current
Current Amp Voltage Gain
Current Amp Unity-Gain Bandwidth
Current Amp Output High
Current Amp Output Low
Current Amp Short-Circuit Current
Input Range, I
SENSE
, M
OUT
(Linear Operation)
Reference
Reference Output Voltage
V
REF
Load Regulation
V
REF
Line Regulation
V
REF
Short-Circuit Current
V
REF
Worst Case
Current Limit
PK
LIM
Offset Voltage
PK
LIM
Input Current
PK
LIM
to GTDR Propagation Delay
Multiplier
Multiplier Output Current
Multiplier Output Current Offset
Multiplier Maximum Output Current
Multiplier Gain Constant (Note 1)
I
AC
Input Resistance
Oscillator
Oscillator Frequency
CONDITIONS
MIN
TYP
MAX
UNITS
G
±
1
–25
110
3
8.5
1.1
8
±
4
–250
mV
nA
dB
MHz
G
80
G
7.2
V
V
G
2
CA
OUT
= 0V
G
3
17
1
mA
G
–0.3
V
I
REF
= 0mA, T
A
= 25
°
C
–5mA < I
REF
< 0mA
11.5V < V
CC
< V
MAX
V
REF
= 0V
Load, Line, Temperature
7.39
7.50
5
5
28
7.5
7.60
V
mV
mV
mA
G
–20
12
7.32
20
50
7.68
G
G
V
G
–25
25
mV
μ
A
ns
PK
LIM
= –0.1V
PK
LIM
Falling from 50mV to –50mV
G
–50
400
–100
I
AC
= 100
μ
A, R
SET
= 15k
R
AC
= 1M from I
AC
to GND
I
AC
= 450
μ
A, R
SET
= 15k, VA
OUT
= 7V, M
OUT
= 0V
35
μ
A
μ
A
μ
A
V
–2
k
G
–0.05
–260
0.035
25
–0.5
–235
G
–286
I
AC
from 50
μ
A to 1mA
15
35
R
SET
= 15k, C
SET
= 1000pF
R
SET
= 15k, C
SET
= 1500pF
G
G
85
58
4.35
1.15
100
68
4.7
1.3
115
78
5.0
1.55
kHz
kHz
C
SET
Ramp Peak-to-Peak Amplitude
C
SET
Ramp Valley Voltage
Overvoltage Comparator (PFC Section)
Comparator Trip Voltage Ratio (V
TRIP
/V
REF
)
Hysteresis
OVP Bias Current
OVP Propagation Delay
Gate Drivers (GTDR1 and GTDR2)
Max Output Voltage
Output High
Output Low (Device Unpowered)
Output Low (Device Active)
V
V
G
1.04
1.05
0.35
0.2
100
1.06
V
OVP = 7.5V
G
1
μ
A
ns
0mA Load, 18V < V
CC
–200mA Load, 11.5V
V
CC
15V
V
CC
= 0V, 50mA Load (Sinking)
200mA Load (Sinking)
10mA Load
10nF from GTDR to GND
1nF from GTDR to GND
G
12
15
17.5
V
V
V
V
V
A
G
V
CC
– 3.0
G
0.9
0.5
0.2
2
25
96
1.5
1.0
0.4
G
G
Peak Output Current
Rise and Fall Time
Max Duty Cycle (PFC)
Max Duty Cycle (PWM) (Note 2)
ns
%
%
90
44
50
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