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參數(shù)資料
| 型號： | FSD200B |
| 廠商： | FAIRCHILD SEMICONDUCTOR CORP |
| 元件分類： | 穩(wěn)壓器 |
| 英文描述： | Green Mode Fairchild Power Switch (FPS) |
| 中文描述： | 0.365 A SWITCHING REGULATOR, 142 kHz SWITCHING FREQ-MAX, PDIP7 |
| 封裝： | DIP-7 |
| 文件頁數(shù)： | 3/18頁 |
| 文件大?。?/td> | 853K |
| 代理商： | FSD200B |
FSD210B, FSD200B
3
Pin Definitions
Pin Configuration
Figure 5. Pin Configuration (Top View)
Pin Number
1, 2, 3
Pin Name
GND
Pin Function Description
Sense FET source terminal on primary side and internal control ground.
The feedback voltage pin is the inverting input to the PWM comparator and
it has a normal input level between 0.5V and 2.5V. It has a 0.25mA current
source connected internally while a capacitor and optocoupler are typically
connected externally. A feedback voltage of 4.5V triggers over load protec-
tion (OLP). There is a time delay while charging external capacitor Cfb from
3V to 4.5V using an internal 5uA current source. This time delay prevents
false triggering under transient conditions, but still allows the protection
mechanism to operate under true overload conditions.
<FSD210B>
Positive supply voltage input. Although connected to an auxiliary transform-
er winding, current is supplied from pin 8 (Vstr) via an internal switch during
startup (see Internal Block Diagram section). It is not until Vcc reaches the
UVLO upper threshold (8.7V) that the internal start-up switch opens and de-
vice power is supplied via the auxiliary transformer winding.
<FSD200B>
This pin is connected to a storage capacitor. A high voltage regulator laid be-
tween pin 8 (Vstr) and this pin, provides supply voltage to the device during
startup and normal operation. The FSD200B eliminates the need for an aux-
iliary bias winding and associated external components.
The drain pins are designed to connect directly to the primary lead of the
transformer and are capable of switching a maximum of 700V for 7DIP and
670V for 7LSOP. Minimizing the length of the trace connecting these pins to
the transformer will decrease leakage inductance.
This pin connects directly to the rectified AC line voltage source for both the
FSD200B and FSD210B.
For the
FSD210B
, at start up the internal switch supplies internal bias and
charges an external storage capacitor placed between the Vcc pin and
ground. Once the Vcc reaches 8.7V, the internal switch is opened.
For the
FSD200B
, an internal high voltage regulator provides constant sup-
ply voltage.
4
Vfb
5
Vcc
7
Drain
8
Vstr
1
2
3
4
5
7
8
GND
Vcc
Vfb
Vstr
Drain
7DIP
7LSOP
GND
GND
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| FSD200BM | Green Mode Fairchild Power Switch (FPS) |
| FSD210B | Green Mode Fairchild Power Switch (FPS) |
| FSD210BM | Green Mode Fairchild Power Switch (FPS) |
| FSD270 | SILICON DUAL VARIABLE CAPACITANCE DIODE |
| FSD270TA | SILICON DUAL VARIABLE CAPACITANCE DIODE |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| FSD200BM | 功能描述:電源開關(guān) IC - 配電 POWER_CONVERSION RoHS:否 制造商:Exar 輸出端數(shù)量:1 開啟電阻（最大值）:85 mOhms 開啟時間（最大值）:400 us 關(guān)閉時間（最大值）:20 us 工作電源電壓:3.2 V to 6.5 V 電源電流（最大值）: 最大工作溫度:+ 85 C 安裝風格:SMD/SMT 封裝 / 箱體:SOT-23-5 |
| FSD200BMX | 功能描述:電源開關(guān) IC - 配電 TBD RoHS:否 制造商:Exar 輸出端數(shù)量:1 開啟電阻（最大值）:85 mOhms 開啟時間（最大值）:400 us 關(guān)閉時間（最大值）:20 us 工作電源電壓:3.2 V to 6.5 V 電源電流（最大值）: 最大工作溫度:+ 85 C 安裝風格:SMD/SMT 封裝 / 箱體:SOT-23-5 |
| FSD200M | 制造商:FAIRCHILD 制造商全稱:Fairchild Semiconductor 功能描述:Green Mode Fairchild Power Switch (FPSTM) |
| FSD20A30 | 制造商:SANREX 制造商全稱:SanRex Corporation 功能描述:THYRISTOR MODULE (SINGLE PHASE BRIDGE TYPE) |
| FSD20A60 | 制造商:SANREX 制造商全稱:SanRex Corporation 功能描述:THYRISTOR MODULE (SINGLE PHASE BRIDGE TYPE) |
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