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参数资料
| 型号： | LT1701-7DB1 |
| 厂商： | POWER-ONE INC |
| 元件分类： | 电源模块 |
| 英文描述： | 1-OUTPUT 550 W AC-DC REG PWR SUPPLY MODULE |
| 封装： | CASE T01, MODULE |
| 文件页数： | 13/33页 |
| 文件大小： | 838K |
| 代理商： | LT1701-7DB1 |
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T Series
AC-DC Converters >100 Watt
Rugged Environment
Edition 4/4.99
20/33
MELCHER
The Power Partners.
Display Status of LEDs
LED Sys OK (green)
corresponds to the system good signal. The LED is ON if no
internal or external error is detected.
LED
Uo OK (green)
indicates the output voltage status. It corresponds to the
power down signal. The LED is ON as long as
Uo has ex-
ceeded the upper threshold level and has not fallen below
the low threshold level
Ut.
LED Error (red)
is ON if one or more of the following conditions is detected:
– Input overvoltage
– Input undervoltage (mains failure)
– Output overvoltage
– Output short circuit
– Output voltage below threshold
Ut
– Internal overtemperature
– Internal circuit fault
– Inhibit/Ucr remote control input error such as:
– (inhibit) voltage
<2.5 V rectifier type
– Remote control voltage out of range
(5.3 V
> U
cr
> 14 V) battery charger type
– Sensor not connected, open remote control input
Table 16: System monitoring
Signal status and LED display status depending on the situation of the various system elements
Possible Situation
Open collector output
LED
System Good
Power Down
Sys OK
Uo OK
Error
All OK
low
on
off
No mains and battery OK or no mains and
Uo > Ut
2
high
low
off
on
Unit inhibited and battery OK or unit inhibited and
Uo > Ut
2
Internal error
2
System good input logic high
3
high
low
off
on
off
No mains and battery low or no mains and
Uo < Ut
2
high
off
on 1
Short circuit on LT output,
Uo < 4 V
high
off
Current limit LT output,
Uo > 4 V, Uo < Ut
2
low
high
on
off
on
Battery charger type T xx40: sensor not connected or out of range
high
low
off
on
1 LED is on until the output capacitors are discharged.
2 Sys In connected to Vo–.
3 Sys In not connected to Vo– (single T status monitoring) or system status monitoring (see: System Integration).
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