參數(shù)資料
型號: TOP245FN-TL
廠商: POWER INTEGRATIONS INC
元件分類: 穩(wěn)壓器
英文描述: 2.88 A SWITCHING REGULATOR, 140 kHz SWITCHING FREQ-MAX, PZIP6
封裝: LEAD FREE, PLASTIC, TO-262, 7/6 PIN
文件頁數(shù): 39/52頁
文件大小: 2175K
代理商: TOP245FN-TL
TOP242-250
N
4/05
44
Typical Performance Characteristics (cont.)
Figure 63a. LINE-SENSE Pin Voltage vs. Current.
6.0
4.5
5.5
5.0
2.0
0
100
200
300
400
LINE-SENSE Pin Current (
A)
LINE
SENSE
Pin
Voltage
(V)
PI-2688-102700
3.0
2.5
3.5
4.0
1.6
1.0
1.4
1.2
0
-240
-180
-60
-120
0
EXTERNAL CURRENT LIMIT Pin Current (
A)
EXTERNAL
CURRENT
LIMIT
Pin
Voltage
(V)
PI-2689-102300
0.4
0.2
0.6
0.8
VX = 1.33 - IXx 0.66 k
-200
A
I
X -25 A
6
5
4
3
2
1
0
-300 -200 -100 0
100 200 300 400 500
PI-2542-102700
MULTI-FUNCTION
Pin
Voltage
(V)
MULTI-FUNCTION Pin Current (
A)
See
Expanded
Version
1.2
1.4
1.6
0.4
0.6
0.2
0.8
1.0
0
-300
-200 -150
-50
-250
-100
0
MULTI-FUNCTION
Pin
Voltage
(V)
PI-2541-102700
MULTI-FUNCTION Pin Current (
A)
VM = 1.37 - IMx 1 k
-200
A
I
M -25 A
1.2
1.0
0.8
0.6
0.4
0.2
0
-50 -25
0
25
50 75 100 125 150
Junction Temperature (
°C)
PI-2562-033001
CONTROL
Current
(Normalized
to
25
°C)
1.2
1.0
0.8
0.6
0.4
0.2
0
-50 -25
0
25
50 75 100 125 150
Junction Temperature (
°C)
PI-2563-033001
Onset
Threshold
Current
(Normalized
to
25
°C)
Figure 63b. EXTERNAL CURRENT LIMIT Pin Voltage
vs. Current.
Figure 64a. MULTI-FUNCTION Pin Voltage vs. Current.
Figure 64b. MULTI-FUNCTION Pin Voltage vs. Current
(Expanded).
Figure 65. Control Current Out at 0% Duty Cycle
vs. Temperaure.
Figure 66. Max. Duty Cycle Reduction Onset Threshold
Current vs. Temperature.
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