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參數(shù)資料
| 型號： | AFL12005DZ/HBPBF |
| 元件分類： | 電源模塊 |
| 英文描述： | 2-OUTPUT 80 W DC-DC REG PWR SUPPLY MODULE |
| 封裝： | 0.380 INCH, LOW PROFILE, SEAM WELDED PACKAGE-12 |
| 文件頁數(shù)： | 9/10頁 |
| 文件大?。?/td> | 119K |
| 代理商： | AFL12005DZ/HBPBF |
8
www.irf.com
AFL120XXD Series
Figure V. Connection for V
OUT Adjustment
Input Filter
Undervoltage Lockout
The AFL120XXD series converters incorporate a single
stage LC input filter whose elements dominate the input
load impedance characteristic during the turn-on sequence.
The input circuit is as shown in Figure IV.
Figure IV. Input Filter Circuit
A minimum voltage is required at the input of the converter
to initiate operation. This voltage is set to 74
± 4 volts. To
preclude the possibility of noise or other variations at the
input falsely initiating and halting converter operation, a hys-
teresis of approximately 7 volts is incorporated in this cir-
cuit. Thus if the input voltage droops to 67
± 4 volts, the
converter will shut down and remain inoperative until the
input voltage returns to
≈ 74 volts.
Output Voltage Adjust
Connect R
adj
to + to increase, - to decrease
By use of the trim pin (10), the magnitude of output voltages
can be adjusted over a limited range in either a positive or
negative direction. Connecting a resistor between the trim
pin and either the output return or the positive output will
raise or lower the magnitude of output voltages. The span
of output voltage adjustment is restricted to the limits shown
in Table I.
Table 1. Output Voltage Trim Values and Limits
Note that the nominal magnitude of output voltage resides in
the middle of the table and the corresponding resistor value
is set to
∞. To set the magnitude greater than nominal, the
adjust resistor is connected to output return. To set the
magnitude less than nominal, the adjust resistor is con-
nected to the positive output. (Refer to Figure V.)
For output voltage settings that are within the limits, but
between those listed in Table I, it is suggested that the
resistor values be determined empirically by selection or by
use of a variable resistor. The value thus determined can
then be replaced with a good quality fixed resistor for per-
manent installation.
When use of this adjust feature is elected, the user should
be aware that the temperature performance of the con-
verter output voltage will be affected by the temperature
performance of the resistor selected as the adjustment
element and therefore, is advised to employ resistors with a
tight temperature coefficient of resistance.
Enable 2
Share
+ Sense
- Sense
Return
+ V
out
To
Loads
R
ADJ
AFL120xxD
7
12
AFL12005D
AFL12012D
AFL12015D
V
out
R
adj
V
out
R
adj
V
out
R
adj
5.5
0
12.5
0
15.5
0
5.4
12.5K
12.4
47.5K
15.4
62.5K
5.3
33.3K
12.3
127K
15.3
167K
5.2
75K
12.2
285K
15.2
375K
5.1
200K
12.1
760K
15.1
1.0M
5.0
∞
12.0
∞
15.0
∞
4.9
190K
11.7
975K
14.6
1.2M
4.8
65K
11.3
288K
14.0
325K
4.7
23K
10.8
72.9K
13.5
117K
4.6
2.5K
10.6
29.9K
13.0
12.5K
4.583
0
10.417
0
12.917
0
Pin 1
Pin 2
16.8uH
0.78uF
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| AFL5005DY | 2-OUTPUT 66 W DC-DC REG PWR SUPPLY MODULE |
| AFL5005SZ/HB | 1-OUTPUT 66 W DC-DC REG PWR SUPPLY MODULE |
| AFL5012SW | 1-OUTPUT 66 W DC-DC REG PWR SUPPLY MODULE |
| AFL5015DX | 2-OUTPUT 66 W DC-DC REG PWR SUPPLY MODULE |
| AFL5015SW/HB | 1-OUTPUT 66 W DC-DC REG PWR SUPPLY MODULE |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| AFL12005S | 制造商:IRF 制造商全稱:International Rectifier 功能描述:HIGH RELIABILITY HYBRID DC/DC CONVERTERS |
| AFL12005SW | 制造商:International Rectifier 功能描述:DC/DC CONVERTER, MINIMUM SCREENING - Bulk |
| AFL12005SW/CH | 制造商:International Rectifier 功能描述:DC/DC CONVERTER, CLASS H - Bulk |
| AFL12005SW/ES | 制造商:International Rectifier 功能描述:DC/DC CONVERTER, ENVIRONMENTAL SCREENING - Bulk |
| AFL12005SW/HB | 制造商:International Rectifier 功能描述:DC/DC CONVERTER, CLASS H EQUIVALENT, NO ELEM EVAL - Bulk |
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