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参数资料
| 型号： | APTH020A0X3-SRZ |
| 厂商： | LINEAGE POWER LLC |
| 元件分类： | 电源模块 |
| 英文描述： | 1-OUTPUT DC-DC REG PWR SUPPLY MODULE |
| 封装： | ROHS COMPLIANT PACKAGE-10/8 |
| 文件页数： | 6/23页 |
| 文件大小： | 556K |
| 代理商： | APTH020A0X3-SRZ |
Data Sheet
April 7, 2011
TLynxTM: Non-isolated DC-DC Power Modules:
2.4 – 5.5Vdc input; 0.6Vdc to 3.63Vdc output; 20A output current
LINEAGE POWER
14
0
1
2
3
4
5
6
0.5
1
1.5
2
2.5
3
3.5
4
Output Voltage (V)
In
p
u
tV
o
lt
ag
e(
v)
Upper Limit
Lower Limit
Figure 40. Output Voltage vs. Input Voltage Set
Point Area plot showing limits where the output
voltage can be set for different input voltages.
Without an external resistor between Trim+ and GND
pins, the output of the module will be 0.6Vdc. To
calculate the value of the trim resistor, Rtrim for a
desired output voltage, use the following equation:
()
Ω
=
k
Vo
Rtrim
6
.
0
2
.
1
Rtrim is the external resistor in k, and Vo is the desired
output voltage.
Table 1 provides Rtrim values required for some
common output voltages.
Table 1
VO, set (V)
Rtrim (K)
0.6
Open
1.0
3.0
1.2
2.0
1.5
1.333
1.8
1.0
2.5
0.632
3.3
0.444
By using a ±0.5% tolerance trim resistor with a TC of
±25ppm, a set point tolerance of ±1.5% can be achieved
as specified in the electrical specification. The POL
Programming Tool available at www.lineagepower.com
under the Design Tools section, helps determine the
required trim resistor needed for a specific output
voltage.
VO+
TRIM
GND
Rtrim
LOAD
VIN+
ON/OFF
SENSE
Figure 41. Circuit configuration for programming
output voltage using an external resistor.
Remote Sense
The TLynx
TM modules have a Remote Sense feature to
minimize the effects of distribution losses by regulating
the voltage at the SENSE pin. The voltage between the
SENSE pin and VOUT pin must not exceed 0.5V. Note
that the output voltage of the module cannot exceed the
specified maximum value. This includes the voltage
drop between the SENSE and Vout pins. When the
Remote Sense feature is not being used, connect the
SENSE pin to the VOUT pin.
Voltage Margining
Output voltage margining can be implemented in the
TLynx
TM modules by connecting a resistor, Rmargin-up,
from the Trim pin to the ground pin for margining-up the
output voltage and by connecting a resistor, Rmargin-down,
from the Trim pin to output pin for margining-down.
Figure 5 shows the circuit configuration for output
voltage margining. The POL Programming Tool,
available at www.lineagepower.com under the Design
Tools section, also calculates the values of Rmargin-up and
Rmargin-down for a specific output voltage and % margin
Please consult your local Lineage Power technical
representative for additional details.
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