參數(shù)資料
型號(hào)： LT1240-7Z
廠商： POWER-ONE INC
元件分類： 電源模塊
英文描述： 1-OUTPUT 500 W AC-DC REG PWR SUPPLY MODULE
文件頁數(shù)： 23/32頁
文件大?。?/td> 1000K
代理商： LT1240-7Z
BCD20023 Rev. AA, 3-Sep-2008
Page 3 of 32
www.power-one.com
T Series Data Sheet
500 Watt AC-DC Converters
Functional Description
The T Series AC-DC converters are primary controlled with a
constant switching frequency of 65.5 kHz. The power factor
corrected single step conversion of the line input voltage to a
low output voltage results in extremely high efficiency.
The input voltage is fed via input fuse, filter, and rectifier to the
main transformer. The wideband input filter with small input
capacitance generates virtually no inrush current. Transient
suppressors protect the converter against overvoltage and
surges. An auxiliary converter generates an internal supply
voltage for the primary control logic. The input voltage
waveform is sensed by the primary control logic to provide
active power factor correction.
The main transformer is connected to a rectifier, large output
capacitors, and an efficient output filter, which ensures low
output ripple and spikes, and provides the necessary hold-up
time. The output voltage is fed back to the primary control logic
via a signal transformer.
The inhibit signal and the T failure signal are transferred by a
second signal transformer (no opto-couplers are used !).
System Good and Output OK are each indicated by a green
LED; inhibit and T System Failure by a red LED.
System Good and Power Down are available as open collector
signals at the connector. The threshold level of the Power
Down signal can be externally adjusted at the D set input.
Test sockets at the front panel allow for the measurement of
the output voltage.
The battery charger version provides additional features to
control the output voltage. To set it to different battery float-
charge voltages, a 16-step selector switch (Z) is standard.
A control input to control the output voltage by an external
temperature sensor is available at a control pin. A trim-
potentiometer allows fine adjustment of the output voltage.
4
6
10
L~
N~
Output
filter
Isolation
4
kV
AC
12
16
18
20
24
26
28
30
32
Vo+
HC+
HC –
Vo–
Sys In
Sys Out
i/Vcr
D
D set
Vo–
+
Cy
8
Input
filter
Input
filter
Input
filter
Control
logic
Voltage
and
system
monitor
Cy
Auxiliary
converter
NTC
22
14
Fuse
Cy
P
Z
Cy
03043a
–
Fig. 1
Block diagram
相關(guān)PDF資料
PDF描述
LT1840-7Z 1-OUTPUT 500 W AC-DC REG PWR SUPPLY MODULE
LT1740-7Z 1-OUTPUT 500 W AC-DC REG PWR SUPPLY MODULE
LT1241MJ8 1 A SWITCHING CONTROLLER, 500 kHz SWITCHING FREQ-MAX, CDIP8
LT1245MJ8 1 A SWITCHING CONTROLLER, 500 kHz SWITCHING FREQ-MAX, CDIP8
LT1241CJ8 1 A SWITCHING CONTROLLER, 500 kHz SWITCHING FREQ-MAX, CDIP8
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
LT1241 制造商:LINER 制造商全稱:Linear Technology 功能描述:High Speed Current Mode Pulse Width Modulators
LT1241CJ8 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Current-Mode SMPS Controller
LT1241CN8 功能描述:IC REG CTRLR ISO PWM CM 8-DIP RoHS:否 類別:集成電路 (IC) >> PMIC - 穩(wěn)壓器 - DC DC 切換控制器 系列:- 標(biāo)準(zhǔn)包裝:2,500 系列:- PWM 型:電流模式 輸出數(shù):1 頻率 - 最大:500kHz 占空比:96% 電源電壓:4 V ~ 36 V 降壓:無 升壓:是 回掃:無 反相:無 倍增器:無 除法器:無 Cuk:無 隔離:無 工作溫度:-40°C ~ 125°C 封裝/外殼:24-WQFN 裸露焊盤 包裝:帶卷 (TR)
LT1241CN8#PBF 功能描述:IC REG CTRLR ISO PWM CM 8-DIP RoHS:是 類別:集成電路 (IC) >> PMIC - 穩(wěn)壓器 - DC DC 切換控制器 系列:- 標(biāo)準(zhǔn)包裝:2,500 系列:- PWM 型:電流模式 輸出數(shù):1 頻率 - 最大:500kHz 占空比:96% 電源電壓:4 V ~ 36 V 降壓:無 升壓:是 回掃:無 反相:無 倍增器:無 除法器:無 Cuk:無 隔離:無 工作溫度:-40°C ~ 125°C 封裝/外殼:24-WQFN 裸露焊盤 包裝:帶卷 (TR)
LT1241CS8 功能描述:IC REG CTRLR ISO PWM CM 8-SOIC RoHS:否 類別:集成電路 (IC) >> PMIC - 穩(wěn)壓器 - DC DC 切換控制器 系列:- 標(biāo)準(zhǔn)包裝:2,500 系列:- PWM 型:電流模式 輸出數(shù):1 頻率 - 最大:500kHz 占空比:96% 電源電壓:4 V ~ 36 V 降壓:無 升壓:是 回掃:無 反相:無 倍增器:無 除法器:無 Cuk:無 隔離:無 工作溫度:-40°C ~ 125°C 封裝/外殼:24-WQFN 裸露焊盤 包裝:帶卷 (TR)
發(fā)布緊急采購，3分鐘左右您將得到回復(fù)。

采購需求

(若只采購一條型號(hào)，填寫一行即可)

發(fā)布成功！您可以繼續(xù)發(fā)布采購。也可以進(jìn)入我的后臺(tái)，查看報(bào)價(jià)

發(fā)布成功！您可以繼續(xù)發(fā)布采購。也可以進(jìn)入我的后臺(tái)，查看報(bào)價(jià)

*型號(hào) *數(shù)量 廠商 批號(hào) 封裝
添加更多采購

我的聯(lián)系方式

*
*
*