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參數資料
| 型號： | 110IMX35D15D15-8-I |
| 廠商： | POWER-ONE INC |
| 元件分類： | 電源模塊 |
| 英文描述： | 4-OUTPUT 35 W DC-DC REG PWR SUPPLY MODULE |
| 文件頁數： | 2/16頁 |
| 文件大小： | 408K |
| 代理商： | 110IMX35D15D15-8-I |
BCD20009-G Rev AA
Page 10 of 16
www.power-one.com
IMX35 Series Data Sheet
35-Watt Quad-Output DC-DC Converters
Progr. Input Undervoltage Lockout PUL
A special feature of these converters is the accurate
undervoltage lockout protection, which protects the converter
(and the system) from large currents caused by operation at
low voltages. This ensures easier start-up in distributed power
systems.
Fig. 13
If the inhibit is not used, the inhibit pin should be connected
to Vi–.
Vi+
Vi –
i
06138a
4
8
2
Option i: Inhibit (Negative Shutdown Logic)
The output of the converter may be enabled or disabled by
means of a logic signal (TTL, CMOS, etc.) applied to the inhibit
pin 8. No output voltage overshoot will occur, when the
converter is turned on. If the inhibit function is not required the
inhibit (pin 8) should be connected to Vi– to enable the output
(active low logic, fail safe). Voltage on pin 8:
Converter operating:
–10 V to 0.8 V
Converter disabled:
2.4 V to 20 V or left
open-circuit
The undervoltage lockout levels may be programmed by use of
an external resistor RPUL to increase the preset levels as
indicated in the table below.
Table 10: Typical values for RPUL and the respective lockout
voltage for input voltage.
20 IMX35
40 I MX35
R PUL [k
]
Vi min [V]
R PUL [k
]
Vi min [V]
∞
≤ 8
∞
≤15.5
39
10
43
22
19
12
16
26
13
14
10
28
9.1
16
0
32
70 IMX35
110 IMX35
R PUL [k
]
Vi min [V]
R PUL [k
]
Vi min [V]
∞
31
∞
42
270
40
270
50
110
50
120
60
80
55
51
75
Table 9: Turn on and turn off voltage
Model
Trigger level
Hysteresis
Unit
20IMX35
7 to 8
<0.5
V
40IMX35
14 to 15.5
<1
70IMX35
31 to 34
<3
110IMX35
42 to 50
<8
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