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參數(shù)資料
| 型號： | TNY376P |
| 廠商： | POWER INTEGRATIONS INC |
| 元件分類： | 穩(wěn)壓器 |
| 英文描述： | 0.8 A SWITCHING REGULATOR, 280 kHz SWITCHING FREQ-MAX, PDIP7 |
| 封裝： | PLASTIC, MS-001AB, DIP-8/7 |
| 文件頁數(shù)： | 20/20頁 |
| 文件大?。?/td> | 1076K |
| 代理商： | TNY376P |
Rev. A 05/07
9
TNY375-380
www.powerint.com
Key Application considerations
TinySwitch-PK Design Considerations
Output Power Table
Data sheet maximum output power table (Table 1) represents
the maximum practical continuous output power level that can
be obtained under the following assumed conditions:
The minimum DC input voltage is 100 V or higher for 85 VAC
input, or 220 V or higher for 230 VAC input or 115 VAC with
a voltage doubler. The value of the input capacitance should
be sized to meet these criteria for AC input designs.
Efficiency of 75%.
Minimum datasheet value of I2f.
Transformer primary inductance tolerance of ±10%.
Reflected output voltage (V
OR) of 135 V.
Voltage only output of 12 V with an ultrafast PN rectifier
diode
Continuous conduction mode operation with transient KP*
value of 0.25.
Increased current limit is selected for peak and open frame
power columns and standard current limit for adapter
columns.
The part is board mounted with SOURCE pins soldered to a
sufficient area of copper to keep the SOURCE pin
temperature at or below 110°C.
Ambient temperature of 50 °C for open frame designs and
40 °C for sealed adapters.
*KP. Below a value of 1, KP is the ratio of ripple to peak
primary current. A transient K
P limit of ≥0.25 is recommended
to avoid premature termination of switching cycles due to initial
current limit (I
INIT) being exceeded, which reduces maximum
output power capability.
1.
2.
3.
4.
5.
6.
7.
8.
9.
10.
The values shown in Table 1 for peak power assume operation
in I
LIMITPEAKinc. For reference, Table 2 provides peak output
powers for each family member at the three selectable current
limit modes.
For both Table 1 and Table 2, the peak output power values are
limited electronically, based on minimum device I2f. Stated
differently, with sufficient heatsinking, these values could be
delivered indefinitely, but in most cases this would be
impractical. Adapter and open frame power values are
thermally limited and represent the practical continuous (or
average) output power in two thermal environments.
Over Voltage Protection
The output overvoltage protection provided by TinySwitch-PK
uses an internal latch that is triggered by a threshold current of
approximately 7 mA into the BYPASS pin. In addition to an
internal filter, the BYPASS pin capacitor forms an external filter,
providing noise immunity from inadvertent triggering. For the
bypass capacitor to be effective as a high frequency filter, it
Peak Output Power Table
Product
230 VAC ± 15%
85-265 VAC
I
LIMIT-
PEAKred
I
LIMITPEAK
I
LIMIT-
PEAKinc
I
LIMIT-
PEAKred
I
LIMITPEAK
I
LIMIT-
PEAKinc
TNY375 P
8.5 W
14.5 W 16.5 W
5.5 W
11.5 W 12.5 W
TNY376 P
10 W
19 W
22 W
6 W
15 W
17 W
TNY377 P
13 W
23 W
28 W
8 W
18 W
23 W
TNY378 P
16 W
27.5 W
34 W
10 W
21.5 W
27 W
TNY379 P
18 W
31.5 W
39 W
12 W
25 W
31 W
TNY380 P
20 W
36 W
45 W
14 W
28 W
35 W
Table 2.
Peak Output Power Capability vs Current Limit Mode Selection.
U1
TNY380P
C1
10 F
400 V
C2
22 F
400 V
L1
1 mH
R1
1 k
R9
3.9 M
R5
47
1/8 W
R3
2 k
1/8 W
R4
20
R2
390
1/8 W
R6
21k
1%
R10
3.9 M
C8
10 nF
1 kV
C7
1 F
50 V
C3
1000 F
16 V
C4
1000 F
16 V
C5
220 F
16 V
C6
10 F
50 V
U2
PC817A
VR2
1N5251B, 22 V
VR1
BZX55B11
11 V, 2%
C9
2.2 nF
250 VAC
R7
22
1/2 W
F1
3.15 A
185-265
VAC
+12 V
RTN
L
N
D1
1N4007
D2
1N4007
D7
FR106
D5
SB560
VR3
P6KE170A
D6
UF4004
D3
1N4007
D4
1N4007
PI-4674-042607
T1
EFD25
9,10
1
3
6,7,8
5
2
D
S
EN/UV
BP
TinySwitch-PK
L2
3.3 H
Figure 15. Universal Input 20 W Continuous and 45 W Peak Power Supply Using TNY380P.
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| TNY376PN | 功能描述:交流/直流開關(guān)轉(zhuǎn)換器 17 W 85-265 VAC 22 W 230 VAC RoHS:否 制造商:STMicroelectronics 輸出電壓:800 V 輸入/電源電壓（最大值）:23.5 V 輸入/電源電壓（最小值）:11.5 V 開關(guān)頻率:115 kHz 電源電流:1.6 mA 工作溫度范圍:- 40 C to + 150 C 安裝風格:SMD/SMT 封裝 / 箱體:SSO-10 封裝:Reel |
| TNY377G | 制造商:POWERINT 制造商全稱:Power Integrations, Inc. 功能描述:Energy-Efficient, Off-Line Switcher With Enhanced Peak Power Performance |
| TNY377GN | 功能描述:交流/直流開關(guān)轉(zhuǎn)換器 23 W (85-265 VAC) 28 W (230 VAC) RoHS:否 制造商:STMicroelectronics 輸出電壓:800 V 輸入/電源電壓（最大值）:23.5 V 輸入/電源電壓（最小值）:11.5 V 開關(guān)頻率:115 kHz 電源電流:1.6 mA 工作溫度范圍:- 40 C to + 150 C 安裝風格:SMD/SMT 封裝 / 箱體:SSO-10 封裝:Reel |
| TNY377GN-TL | 功能描述:交流/直流開關(guān)轉(zhuǎn)換器 23 W (85-265 VAC) 28 W (230 VAC) RoHS:否 制造商:STMicroelectronics 輸出電壓:800 V 輸入/電源電壓（最大值）:23.5 V 輸入/電源電壓（最小值）:11.5 V 開關(guān)頻率:115 kHz 電源電流:1.6 mA 工作溫度范圍:- 40 C to + 150 C 安裝風格:SMD/SMT 封裝 / 箱體:SSO-10 封裝:Reel |
| TNY377P | 制造商:POWERINT 制造商全稱:Power Integrations, Inc. 功能描述:Energy-Efficient, Off-Line Switcher With Enhanced Peak Power Performance |
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