CC3-4805SR-E Datasheet, PDF (22/25 Pages) TDK Electronics – Insulation type DC-DC converter

CC-E
For ±the 12V output model, output voltage can be set to
24V single output by making the COM terminal and TRM
terminal open. And output voltage can be set to 30V single
output by making the COM terminal open and connecting
the TRM terminal to the -Vout terminal.
NPEFMT
Model name
COM terminal TRM terminal Single output Fig.
Open
Open
Open
Connection to -Vout
* To be replaced with 1R5(1.5W), 3(3W), 6(6W), or 10(10W) for actual model names.
Fig.5
Fig.6
+Vin
+Vout
+Vin
+Vout
24V
30V
TRM
TRM
COM
COM
–Vin
–Vout
–Vin
–Vout
NPEFMT
Model name
COM terminal TRM terminal Single output Fig.
Open
Open
Open
Connection to -Vout
Fig.7
Fig.8
-PBE
24V
-PBE _30V
1-3. O utput voltage adjusting func-
tion (adding external resistance)
(1.5-10W type)
Output voltage can be varied in the range shown in the fig-
ure below by connecting a resistance (Ra, Rb) between the
TRM terminal and the -Vout terminal or between the TRM
terminal and +Vout terminal.
Note that when the output voltage is set high, derating
of output current is necessary according to the maximum
power.
NPEFMT
Model name
Connection between
-Vout and Ra
Fig.
Connection between
+Vout and Rb
Fig.
UP
UP
UP
UP
UP
UP
UP
UP
* To be replaced with 1R5(1.5W), 3(3W), 6(6W), or 10(10W) for actual model names.
Calculating output voltage Vout (V) from connected resis-
tance Ra, Rb (kΩ)
Adding a resistance Ra between TRM terminal and -Vout
terminal, to set the output voltage high
*1 Vout = 3.3 + 9.59/(32+Ra)
*2 Vout = 5.01 + 17.64/(17.8+Ra)
*3 Vout = 12.01 + 50.53/(16.9+Ra)
*4 Vout = 12.02 + 53.55/(18+Ra)
22
Adding a resistance Rb between TRM terminal and
+Vout terminal, to set the output voltage low
*5 Vout = 3.3 - 15.53/(39.6+Rb) [Rb ≧ 62]
*6 Vout = 5.01 - 52.55/(31.8+Rb) [Rb ≧ 160]
*7 Vout = 12.01 - 431.1/(57+Rb) [Rb ≧ 620]
*8 Vout = 12.02 - 968.5/(103+Rb) [Rb ≧ 1500]
Calculating connected resistance Ra, Rb (kΩ) from set out-
put voltage Vout (V)
Adding a resistance Ra between TRM terminal and -Vout
terminal, to set the output voltage high
*1 Ra = 9.59/(Vout-3.3) - 32
*2 Ra = 17.64/(Vout-5.01) - 17.8
*3 Ra = 50.53/(Vout-12.01) - 16.9
*4 Ra = 53.55/(Vout-12.02) - 18
Adding a resistance Rb between TRM terminal and +Vout
terminal, to set the output voltage low
*5 Rb = 15.53/(3.3-Vout) - 39.6
*6 Rb = 52.55/(5.01-Vout) - 31.8
*7 Rb = 431.1/(12.01-Vout) - 57
*8 Rb = 968.5/(12.02-Vout) - 103
Fig.9
+Vout
3.3ʙ3.6V
5ʙ6V
12ʙ15V
Fig.11
TRM
Ra
–Vout
  
+Vout
TRM
COM
Ra
–Vout

+12ʙ+15V
-PBE
-PBE
–12ʙ–15V
Fig.10
  
+Vout
Rb
TRM
3.15ʙ3.3V
4.75ʙ5V
11.4ʙ12V
–Vout
Fig.12
 _{+11.4ʙ+12V}
+Vout
TRM
Rb
-PBE
COM
-PBE
–Vout
–11.4ʙ–12V
NPEFMT
Model name
Connection between
-Vout and Ra
Fig.
UP
UP
UP
UP
Connection between
+Vout and Rb
Fig.
UP
UP
UP
UP
Calculating output voltage Vout (V) from connected resis-
tance Ra, Rb (kΩ)
Adding a resistance Ra between TRM terminal and -Vout
terminal, to set the output voltage high
*1 Vout = 3.3 + 1.04/(2.83+Ra)
* To b_*e₂re_Vpla_oc_ued_t w₌ith₅1R₊5(₁1.5₂W_.7),₅3(_/3₍W₁),₂6_.(₆6W₉)₊, o_Rr _a10₎(10W) for actual model names.
*3 Vout = 12 + 48.4/(16.18+Ra)
*4 Vout = 12 + 54.7/(18+Ra)
Adding a resistance Rb between TRM terminal and
+Vout terminal, to set the output voltage low
*5 Vout = 3.3 - 1.69/(3.66+Rb) [Rb ≧ 7.6]
*6 Vout = 5 - 12.78/(17.79+Rb) [Rb ≧ 33.3]
*7 Vout = 12 - 184.1/(35.54+Rb) [Rb ≧ 271.3]
*8 Vout = 12 -470.3/(61.75+Rb) [Rb ≧ 722.1]
・All specifications are subject to change without notice.