Delta Electronics IPM- C Series Specification Sheet page 8

8 .2.4 Output Voltage Set-Point Adjustment Range (Trim)
O utput Voltage Set-Point Adjustment can be carried out by using an external resistor or
external voltage source to increase or decrease the output voltag
th e data sheet for the detailed specification). Refer all trim voltage require
7.1-7, 7.1.8, and refer all the design numbers to Evaluation Board Schematic.
(1) Output Voltage Set-Point Adjustment by using an external resistor
For IPM12C se ries
To implement Trim-up by using an external resistor, R
TRIM pin and ground. For IPM12C0A0R04A, Please refer to the IPMR table for the desired
Vout. The value of R
trim-up
also be referred for further information.
To implement Trim-down by using an external resistor, R
the TRIM pin and Vout. For IPM12C0A0R04A, Please refer to the IPMR table for the desired
V out. The value of R
trim-down
can also be referred for further information.
IPMR: Rtrim values versus some commonly used Vout for IPM12C0A0R04A
can be calculated by the following equation and the datasheet can
. 3 752
=
R
−
trim up −
V 0 9 .
out
can be calculated by the following equation and the datasheet
. 1 072
=
R
−
trim down
−
0 9 . V
out
Vout Rtrim (Ω)
0.800
0.900
1.0
1.2
1.5
1.8
2.5
3.3
5.0
e set-point (please refer to
ments to Item 7.1-6,
must be connected
trim-up
− Ω
. 0 261 k
must be connected between
trim-down
− Ω
. 5 621 k
5.09K
Open
37.2K
12.2K
5.98K
3.90K
2.08K
1.30K
653
between the
.
8