PEDL5501-02
OKI Semiconductor
ML5501
(Note2) By changing the VDD from 10.8V to 13.2V , line regulation can be expressed as :
Δvout=Vout(@Vdd=13.2V) – Vout(@Vdd=10.8V),
LiR%=0.5*100*Δvout/Vout(@Vdd=12V). Load Current is 1mA when LiR% is measured.
(Note3) In each output selection, load regulation can be obtained by changing the output current from
1mA(No Load ) to rated current (Full load) with a low duty cycle current pulse (4ms period,400us
at maximum current with 50us rise and fall times).
Δvout=Vout(No load) – Vout(Full load)
LoR%=100*Δvout/Vout(NoLoad).
Input Voltage (VDD) is 12V when load regulation is measured.
(Note4) Current limit mode of ML5501 is the fold back mode. ML5501 judges over current state when
load current is more than current limit value or output short to ground level.
※
Fold back : フの字特性
Current Limit
Short state
is more than 400mA and
less than 800mA
[V]
Vout[V]
Out
PD
time
time
time
[V]
[V]
0
SD
Iload[A]
Short circuit current
is less than 50mA.
Fig. time chart in Current mode ML5501
Fig. I-V curves in Current mode ML5501
Rev 1.0
6 / 13
OKI [ OKI ELECTRONIC COMPONETS ]
