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參數資料
| 型號： | TOP244G |
| 英文描述： | SMPS Controller |
| 中文描述： | 開關電源控制器 |
| 文件頁數： | 4/52頁 |
| 文件大?。?/td> | 457K |
| 代理商： | TOP244G |
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TOP242-250
4
H
9/02
General Information & Table of Contents
Voltage
Product Selector Guide 1
IL
12 k
values
Data Sheets 2
Application Notes 3
Design Ideas 4
V
OV
=
OV
x
R
LS
Design Tools 5
Quality and Reliability 6
Package Information 7
R Package (TO-263-7C)
F Package (TO-262-7C)
TOPSwitch-GXAC-DC Seminar 10
Input
Sales Representatives and Distributors 11
R
IL
Pin Functional Description
DRAIN (D) Pin:
High voltage power MOSFET drain output. The internal
start-up bias current is drawn from this pin through a switched
high-voltage current source. Internal current limit sense point
for drain current.
CONTROL (C) Pin:
Error amplifier and feedback current input pin for duty cycle
control. Internal shunt regulator connection to provide inter-
nal bias current during normal operation. It is also used as the
connection point for the supply bypass and auto-restart/
compensation capacitor.
LINE-SENSE (L) Pin:
(Y, R or F package only)
Input pin for OV, UV, line feed forward with DC
remote ON/OFF and synchronization. A connection to
SOURCE pin disables all functions on this pin.
EXTERNAL CURRENT LIMIT (X) Pin:
(Y, R or F
package only)
Input pin for external current limit adjustment, remote
ON/OFF, and synchronization. A connection to SOURCE pin
disables all functions on this pin.
MULTI-FUNCTION (M) Pin:
(P or G package only)
This pin combines the functions of the LINE-SENSE (L) and
EXTERNAL CURRENT LIMIT (X) pins of the Y package
into one pin. Input pin for OV, UV, line feed forward with
DC
reduction, external current limit adjustment, remote
ON/OFF and synchronization. A connection to SOURCE pin
disables all functions on this pin and makes
TOPSwitch-GX
operate in simple three terminal mode (like
TOPSwitch-II
).
Figure 3. Pin Configuration (top view).
PI-2509-040501
DC
Input
Voltage
+
-
S
V
UV
= I
UV
x R
LS
For R
LS
= 2 M
UV
V
OV
=
450 VDC
DC
@100 VDC = 78%
DC
MAX
@375 VDC = 38%
CONTROL
R
LS
2 M
PI-2517-040501
+
-
M
S
C
For R
IL
= 12 k
I
LIMIT
= 69%
resistor values (R
IL
)
I
LIMIT
values
For R
= 25 k
I
LIMIT
= 43%
X
PI-2629-040501
DC
Input
+
-
CONTROL
R
LS
2 M
V
UV
= I
UV
x R
LS
V
OV
=
I
OV
x
R
LS
For R
LS
= 2 M
V
UV
= 100 VDC
V
OV
= 450 VDC
DC
MAX
@375 VDC = 38%
For R
IL
= 12 k
I
LIMIT
= 69%
resistor values (R
IL
)
Figure 4. Y/R/F Package Line Sense and Externally Set Current
Limit.
Figure 5. P/G Package Line Sense.
Figure 6. P/G Package Externally Set Current Limit.
FREQUENCY (F) Pin:
(Y, R or F package only)
Input pin for selecting switching frequency: 132 kHz if
connected to SOURCE pin and 66 kHz if connected to
CONTROL pin. The switching frequency is internally set for
fixed 132 kHz operation in P and G packages.
SOURCE (S) Pin:
Output MOSFET source connection for high voltage power
return. Primary side control circuit common and reference point.
PI-2724-010802
Tab Internally
Connected to
SOURCE Pin
Y Package (TO-220-7C)
C
D
S
S
S
S
1
C
3
X
2
L
5
4
F
7
D
M
P Package (DIP-8B)
G Package (SMD-8B)
8
5
7
1
1 2 3 4 5
C L X S F
7
D
4
2
3
相關PDF資料 |
PDF描述 |
|---|---|
| TOP244G-TL | SMPS Controller |
| TOP244P | SMPS Controller |
| TOP244R-TL | SMPS Controller |
| TOP245F | SMPS Controller |
| TOP245R-TL | SMPS Controller |
相關代理商/技術參數 |
參數描述 |
|---|---|
| TOP244G- | 制造商:POWERINT 制造商全稱:Power Integrations, Inc. 功能描述:TOPSwitch-GX Family Extended Power, Design Flexible, EcoSmart, Integrated Off-line Switcher |
| TOP244GN | 功能描述:交流/直流開關轉換器 20 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 |
| TOP244GN- | 制造商:POWERINT 制造商全稱:Power Integrations, Inc. 功能描述:TOPSwitch-GX Family Extended Power, Design Flexible, EcoSmart, Integrated Off-line Switcher |
| TOP244GN-TL | 功能描述:交流/直流開關轉換器 20 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 |
| TOP244G-TL | 功能描述:IC OFFLINE SWIT OVP UVLO HV 8SMD RoHS:否 類別:集成電路 (IC) >> PMIC - AC-DC 轉換器，離線開關 系列:TOPSwitch®-GX 標準包裝:1 系列:FPS™ 輸出隔離:隔離 頻率范圍:61kHz ~ 73kHz 輸入電壓:8 V ~ 26 V 輸出電壓:650V 功率（瓦特）:12W 工作溫度:-40°C ~ 115°C 封裝/外殼:8-DIP（0.300"，7.62mm） 供應商設備封裝:8-MDIP 包裝:Digi-Reel® 其它名稱:FSL206MRBNFSDKR |
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