FA5331P(M)/FA5332P(M)
Current error amplifier section
Item
Symbol Test condition
FA5331P(M)
FA5332P(M)
Unit
Min. Typ. Max. Min. Typ. Max.
Input threshold voltage
VTH IDET VDET=0V
–
–
–
0
30
60
mV
VFB=Vr, Rn=30Ω
Input bias current
Open-loop voltage gain
Output voltage
IBC
IDET=0V
No load
VIFB=0V
–350 –230
80
–350 –250 –150 µA
VC
A
80
dB
V
VOC+
VOC–
IOC+
3.5
3.8
3.5
3.8
50
200
50
200
mV
µA
Output source curent
–900
–900
Reference voltage section
Item
Symbol Test condition
FA5331P(M)
FA5332P(M)
Unit
Min. Typ. Max. Min. Typ. Max.
Output voltage
VREF
4.8
5.0
2
5.2
25
4.8
5.0
2
5.2
25
5
V
Voltage variation 1 (by supply voltage variation)
Voltage variation 2 (by load change)
VRDV
VCC=10 to 30V
mV
mV
RDT
V
OR
I =0.1 to 2mA
Multiplier section
Item
Symbol Test condition FA5331P(M)
FA5332P(M)
Unit
Min. Typ. Max. Min. Typ. Max.
MVDET
VDET terminal input voltage
VFB terminal input voltage
Output current
V
0
2.0
3.5
0
2.4
3.5
V
VMVFB
IM
1.5
1.5
V
VIIN–=0V
–65
–65
µA
–
Output voltage coefficient
K
–1.0
–1.0
Pulse width modulation circuit section
Item
Symbol Test condition
FA5331P(M)
Min. Typ. Max. Min. Typ. Max.
89 92 95 89 92 95
FA5332P(M)
Unit
Maximum duty cycle
DMAX
%
Output circuit section
Item
Symbol Test condition
FA5331P(M)
FA5332P(M)
Unit
Min. Typ. Max. Min. Typ. Max.
Output voltage
VOL
VOH
IO=100mA
IO=–100mA
VCC=18V
No load
1.3
1.8
1.3
1.8
V
V
15.5 16.5
15.5 16.5
Rise time
Fall time
tr
tr
300
200
300
200
ns
ns
No load
Soft-start circuit section
Item
Symbol Test condition
FA5331P(M)
FA5332P(M)
Unit
Min. Typ. Max. Min. Typ. Max.
Input threshold voltage
Charge current
VTHCSO
Duty cycle=0%
Duty cycle=DMAX
CS terminal=0V
0.1
0.1
V
THCSM
V
3.55
–10
3.55
–10
V
ICHG
µA
3
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