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參數(shù)資料
| 型號(hào)： | L6590AN |
| 廠商： | STMICROELECTRONICS |
| 元件分類(lèi)： | 穩(wěn)壓器 |
| 英文描述： | 0.7 A SWITCHING REGULATOR, 74 kHz SWITCHING FREQ-MAX, PDIP8 |
| 封裝： | MINI, DIP-8 |
| 文件頁(yè)數(shù)： | 12/19頁(yè) |
| 文件大?。?/td> | 289K |
| 代理商： | L6590AN |
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L6590A
2/19
DESCRIPTION (continued)
The MOSFET is source-grounded, thus it is possible
to build flyback, boost and forward converters.
The device is meant to work with secondary feed-
back for tight tolerance of the regulated output volt-
age.
The internal fixed oscillator frequency and the inte-
grated non dissipative start-up generator minimize
the external component count and power consump-
tion.
The device is equipped with a standby function that
automatically reduces the oscillator frequency from
65 to 22 kHz under light load conditions to enhance
efficiency (Pin <1W @ Pout = 0.5W with wide range
mains).
Internal protections like cycle-by-cycle current limit-
ing, latched output overvoltage protection, mains un-
dervoltage
protection
and
thermal
shutdown
generate a 'robust' design solution.
The IC uses a special leadframe with the ground pins
(6, 7 and 8) internally connected in order for heat to
be easily removed from the silicon die. An heatsink
can then be realized by simply making provision of
few cm2 of copper on the PCB. Furthermore, the pin
close to the high-voltage one is not connected to
ease compliance with safety distances on the PCB.
BLOCK DIAGRAM
PIN CONNECTIONS (Top view)
SUPPLY
&UVLO
OVER
VOLTAGE
OVER
CURRENT
+
-
+
-
2.5V
+
-
DRAIN
(1)
VCC
(3)
BOK
(5)
COMP
(4)
GND
(6,7,8)
VREF
1mA
BROWNOUT
PWM
STANDBY
START-UP
OSC
65/22 kHz
THERMAL
S.DOWN
BOK
DRAIN
N.C.
Vcc
COMP
GND
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| L6590D | 功能描述:開(kāi)關(guān)變換器、穩(wěn)壓器與控制器 700 Volt Monolithic RoHS:否 制造商:Texas Instruments 輸出電壓:1.2 V to 10 V 輸出電流:300 mA 輸出功率: 輸入電壓:3 V to 17 V 開(kāi)關(guān)頻率:1 MHz 工作溫度范圍: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:WSON-8 封裝:Reel |
| L6590D013TR | 功能描述:開(kāi)關(guān)變換器、穩(wěn)壓器與控制器 700 Volt Monolithic RoHS:否 制造商:Texas Instruments 輸出電壓:1.2 V to 10 V 輸出電流:300 mA 輸出功率: 輸入電壓:3 V to 17 V 開(kāi)關(guān)頻率:1 MHz 工作溫度范圍: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:WSON-8 封裝:Reel |
| L6590ED | 功能描述:功率因數(shù)校正 IC STEP DOWN SWITCH REG RoHS:否 制造商:Fairchild Semiconductor 開(kāi)關(guān)頻率:300 KHz 最大功率耗散: 最大工作溫度:+ 125 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:SOIC-8 封裝:Reel |
| L6590ED013TR | 功能描述:功率因數(shù)校正 IC STEP DOWN SWITCH REG RoHS:否 制造商:Fairchild Semiconductor 開(kāi)關(guān)頻率:300 KHz 最大功率耗散: 最大工作溫度:+ 125 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:SOIC-8 封裝:Reel |
| L6590N | 功能描述:開(kāi)關(guān)變換器、穩(wěn)壓器與控制器 700 Volt Monolithic RoHS:否 制造商:Texas Instruments 輸出電壓:1.2 V to 10 V 輸出電流:300 mA 輸出功率: 輸入電壓:3 V to 17 V 開(kāi)關(guān)頻率:1 MHz 工作溫度范圍: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:WSON-8 封裝:Reel |
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