Instructions

INSTRUCTION MANUAL
CCG
TDKLambda
<Page>
10/23
Output Voltage Adjustment by External Resistor or Variable Resistor (Only CCGS)
(1) In case of adjusting output voltage lower
(11) Maximum output current
In case of adjusting output voltage lower, maximum output current is until rated maximum
output current of specification.
ex)In case of CCG30xx12S
When setting 12V Model to 10.8V output, maximum output power = 10.8V×2.5A = 27W.
(12) External resister connecting method
Connect an external resistor or variable resister Ra between TRM and +Vout terminal.
To prevent the effect of noise or other, connect as short as possible because TRM terminal is
relatively high impedance.
Please refer to Table 61 when adjusting output voltage.
Output Voltage：Vout(V), External Resistor Value：Ra(kΩ)
Output voltage could be adjusted within the 10% of nominal output voltage
by external resistor Ra.
Fig.62 Basic Connection for Output Voltage Trim Down
Table 61 Equation of External Resistor and Output Voltage
+Vout
Vout
Load
TRM
+

Ra
CCGS
CCGxxxx03S
CCGxxxx05S
CCGxxxx12S
CCGxxxx15S
Model
Equation
Vout (V) = 3.3 
16.05
22.8+Ra (kΩ)
Vout (V) = 5.01 
53.95
32.3+Ra (kΩ)
Vout (V) = 12.05 
445.7
63.1+Ra (kΩ)
Vout (V) = 15.08 
732.7
74.7+Ra (kΩ)
Ra (kΩ)
= 22.8
16.05
3.3Vout (V)
Ra (kΩ)
= 32.3
53.95
5.01Vout (V)
Ra (kΩ)
= 63.1
445.7
12.05Vout (V)
Ra (kΩ)
= 74.7
732.7
15.08Vout (V)