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參數(shù)資料
| 型號： | NC12S0A0H20NNFA |
| 廠商： | Delta Electronics, Inc. |
| 英文描述： | Delphi NC20 Series Non-Isolated Point of Load DC/DC Power Modules: 12Vin, 0.9V-5.0Vout, 20A |
| 中文描述： | 德爾福NC20系列非隔離負載點DC / DC電源模塊：12Vin，為0.9V - 5.0Vout，20A條 |
| 文件頁數(shù)： | 8/14頁 |
| 文件大?。?/td> | 803K |
| 代理商： | NC12S0A0H20NNFA |
DS_NC12S20A_02072007
8
The NC15A/20A module has a trim range of 0.9V to
5.0V. The trim resistor equation for the NC6A/NC15A/
NC20A is :
1170
)
(
Vout
Vout is the output voltage setpoint
Rs is the resistance between Trim and Ground
Rs values should not be less than 280
Output Voltage
+0.9 V
+1.2 V
+1.5 V
+1.8 V
+2.5 V
+3.3 V
+5.0 V
FEATURES DESCRIPTIONS
Input Under-Voltage Lockout
The input under-voltage lockout prevents the converter
from being damaged while operating when the input
voltage is too low. The lockout occurs between 7.0V to
8.0V.
Over-Current and Short-Circuit Protection
The NC series modules have non-latching over-current
and short-circuit protection circuitry. When over current
condition occurs, the module goes into the non-latching
hiccup mode. When the over-current condition is
removed, the module will resume normal operation.
An over current condition is detected by measuring the
voltage drop across the high-side MOSFET. The voltage
drop across the MOSFET is also a function of the
MOSFET’s Rds(on). Rds(on) is affected by temperature,
therefore ambient temperature will affect the current limit
inception point. Please see the electrical characteristics
for details of the OCP function.
The detection of the Rds(on) of the high side MOSFET
also acts as an over temperature protection since high
temperature will cause the Rds(on) of the MOSFET to
increase, eventually triggering over-current protection.
Output Voltage Programming
The output voltage of the NC series is trimmable by
connecting an external resistor between the trim pin and
output ground as shown Figure 27 and the typical trim
resistor values are shown in Figure 28. The output can
also be set by an external voltage connected to trim pin
as shown in Figure 29.
9
=
Rs
Rs (
)
OPEN
3.92K
1.96K
1.3K
732
487
287
Figure 28:
Typical trim resistor values
NC6A/15A/20A
Vout
Ground
Trim
Enable
Ground
Vin
1.3K
Rt
Rs
Vt
Figure 29:
Output voltage trim with voltage source
To use voltage trim, the trim equation for the
NC6A/NC15A/ NC20A is (please refer to Fig. 29) :
17
.
3
)
(
Vout
Rs
Vout is the desired output voltage
Vt is the external trim voltage
Rs is the resistance between Trim and Ground (in K
)
Rt is the resistor to be defined with the trim voltage (in K
)
Below is an example about using this voltage trim
equation :
Example
：
If Vt = 1.25V, desired Vout = 2.5V and Rs = 0.715K
=
Vout
Rs
(
17
.
)
(
17
.
)
=
Vt
Rs
k
Rt
=
K
Vt
Rs
K
Rt
51
.
12
)
)
17
.
3
)
(
NC6A/15A/20A
Rs
Vout
Ground
Trim
Enable
Ground
Vin
Figure 27:
Trimming Output Voltage
相關PDF資料 |
PDF描述 |
|---|---|
| NC12S0A0H20NRFA | Delphi NC20 Series Non-Isolated Point of Load DC/DC Power Modules: 12Vin, 0.9V-5.0Vout, 20A |
| NC12S0A0H20PNFA | Delphi NC20 Series Non-Isolated Point of Load DC/DC Power Modules: 12Vin, 0.9V-5.0Vout, 20A |
| NC12S0A0H20PRFA | Delphi NC20 Series Non-Isolated Point of Load DC/DC Power Modules: 12Vin, 0.9V-5.0Vout, 20A |
| NC12S0A0V20NNFA | Delphi NC20 Series Non-Isolated Point of Load DC/DC Power Modules: 12Vin, 0.9V-5.0Vout, 20A |
| NC12S0A0V20NRFA | Delphi NC20 Series Non-Isolated Point of Load DC/DC Power Modules: 12Vin, 0.9V-5.0Vout, 20A |
相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| NC12S0A0H20NRFA | 制造商:DELTA 制造商全稱:Delta Electronics, Inc. 功能描述:Delphi NC20 Series Non-Isolated Point of Load DC/DC Power Modules: 12Vin, 0.9V-5.0Vout, 20A |
| NC12S0A0H20PNFA | 制造商:Delta Electronics Inc 功能描述:DC/DC Power Modules: |
| NC12S0A0H20PRFA | 制造商:DELTA 制造商全稱:Delta Electronics, Inc. 功能描述:Delphi NC20 Series Non-Isolated Point of Load DC/DC Power Modules: 12Vin, 0.9V-5.0Vout, 20A |
| NC12S0A0H30NNFA | 制造商:DELTA 制造商全稱:Delta Electronics, Inc. 功能描述:Delphi NC30 Series Non-Isolated Point of Load DC/DC Power Modules: 12Vin, 0.9V-5Vout, 30A |
| NC12S0A0H30NRFA | 制造商:DELTA 制造商全稱:Delta Electronics, Inc. 功能描述:Delphi NC30 Series Non-Isolated Point of Load DC/DC Power Modules: 12Vin, 0.9V-5Vout, 30A |
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