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参数资料
| 型号： | LT1240-7DZFB1 |
| 厂商： | POWER-ONE INC |
| 元件分类： | 电源模块 |
| 英文描述： | 1-OUTPUT 500 W AC-DC REG PWR SUPPLY MODULE |
| 封装： | CASE T01, MODULE |
| 文件页数： | 16/33页 |
| 文件大小： | 864K |
| 代理商： | LT1240-7DZFB1 |
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Cassette Style
AC-DC Converters
T Series
Edition 5/5.2000
23/33
Storing the System Good Signal
For battery back-up systems located in inaccessible areas
it could be of interest to know, whether there has been a
Power Fail (interruption of the mains). To obtain this infor-
mation Sys Out should be connected to Sys In with a reset
button connected to Vo–. In this way a system failure like an
interruption of the mains will be stored at Sys Out until the
reset button is pressed.
Low Battery Discharge Protection
Since all monitoring functions are powered by the output of
the T unit or the battery in the case of a mains failure, Power
Down can be used to monitor the status of the battery and
to disconnect the load or part of it via the inhibit of the CQ
units when the battery voltage drops below the threshold
level of the Power Down. This prevents further discharge of
the battery. See also:
Power Down.
+
–
+
–
CQ
P
N
P
N
Sys Out
Sys In
T
1740-7DZ
+
–
Vo+
Vo–
Fuse
Vo+
Stored
Sys Out
Reset
R
+
–
HC–
HC+
06084
Temp. sensor
Fig. 44
Storing the System Good signal
Fig. 43
Disconnecting the loads at low battery voltage in case of
mains failure
Fig. 45
UPS uninteruptable power supply system
T
1740-7DZ
CQ
T
1740-7DZ
System
Controller
48 Vnom Power Bus (SELV)
(50.5...56.5 V DC)
Back-up
battery
48 V
12 V, 16 A
(8 A*)
24 V, 8 A
(4 A*)
+5.1 V, 64 A (48 A*)
Power down
DC bus good
Output good
N P
+
–
* For redundancy,
decoupling at the
CQ-outputs with
diodes is required.
Fuse
06085
Temp. sensor
+
–
Out OK–
Out OK+
+
–
CQ
+
–
Out OK–
Out OK+
+
–
CQ
+
–
Out OK–
Out OK+
+
–
CQ
P
N
P
N
Sys Out
Sys In
D
T
1740-7DZ
+ –
i
Vo+
Vo–
D set
Fuse
43.2 k
R
ext
+
R
Vo+
HC+
HC–
–
06083
Temp. sensor
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相关代理商/技术参数 |
参数描述 |
|---|---|
| LT1240-7Z | 制造商:POWER-ONE 制造商全称:Power-One 功能描述:500 Watt AC-DC Converters |
| LT1241 | 制造商:LINER 制造商全称:Linear Technology 功能描述:High Speed Current Mode Pulse Width Modulators |
| LT1241CJ8 | 制造商:未知厂家 制造商全称:未知厂家 功能描述:Current-Mode SMPS Controller |
| LT1241CN8 | 功能描述:IC REG CTRLR ISO PWM CM 8-DIP RoHS:否 类别:集成电路 (IC) >> PMIC - 稳压器 - DC DC 切换控制器 系列:- 标准包装:2,500 系列:- PWM 型:电流模式 输出数:1 频率 - 最大:500kHz 占空比:96% 电源电压:4 V ~ 36 V 降压:无 升压:是 回扫:无 反相:无 倍增器:无 除法器:无 Cuk:无 隔离:无 工作温度:-40°C ~ 125°C 封装/外壳:24-WQFN 裸露焊盘 包装:带卷 (TR) |
| LT1241CN8#PBF | 功能描述:IC REG CTRLR ISO PWM CM 8-DIP RoHS:是 类别:集成电路 (IC) >> PMIC - 稳压器 - DC DC 切换控制器 系列:- 标准包装:2,500 系列:- PWM 型:电流模式 输出数:1 频率 - 最大:500kHz 占空比:96% 电源电压:4 V ~ 36 V 降压:无 升压:是 回扫:无 反相:无 倍增器:无 除法器:无 Cuk:无 隔离:无 工作温度:-40°C ~ 125°C 封装/外壳:24-WQFN 裸露焊盘 包装:带卷 (TR) |
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