
FA7610CP(N)/FA7612CP(N)/FA7617CP(N)
3
I
Absolute maximum ratings
(Ta = 25
°
C)
Item
Symbol
Rating
Unit
FA7610C
FA7612C/17C
Supply voltage
V
CC
I
OR
I
O
P
d
T
opr
T
stg
22
22
V
Reference voltage output current
5
±
50
5
mA
Output current
80
mA
Total power dissipation
400
400
mW
°
C
°
C
Operating temperature
–20 to +85
–20 to +85
Storage temperature
–40 to +150
–40 to +150
I
Recommended operating conditions
Item
Symbol
FA7610C
FA7612/17C
Unit
Min.
Max.
Min.
Max.
Supply voltage
V
CC
R
NF
C
T
R
T
f
OSC
3.6
20
3.6
20
V
k
pF
k
Feedback resistance
100
100
Oscillator timing capacitor
220
22,000
220
22,000
Oscillator timing resistance
10
100
10
100
Oscillation frequency
5
200
5
500
kHz
I
Electrical characteristics
(Ta = 25
°
C, V
CC
= 6V, R
T
= 33k
, C
T
= 1000pF)
Reference voltage section
Common to FA7610C/12C/17C
Item
Symbol
V
REF
L
INE
L
OAD
V
TC1
V
TC2
Test condition
I
OR
= 1mA
V
CC
= 3.6 to 20V,
I
OR
= 1mA
I
OR
= 0.1 to 1mA
Ta = –20 to +25
°
C
Ta = +25 to +85
°
C
Min.
Typ.
Max.
Unit
Output voltage
2.528
2.580
2.632
V
Line regulation
4
12
mV
Load regulation
1
6
mV
Output voltage variation due to temperature change
–1
1
%
–1
1
%
Oscillator section
Common to FA7610C/12C/17C
Item
Symbol
f
OSC
f
dV
f
dT
Test condition
C
T
= 1000pF,
R
T
= 33k
V
CC
= 3.6 to 20V
Ta = –20 to +85
°
C
Min.
Typ.
Max.
Unit
Oscillation frequency
100
111
122
kHz
Frequency variation 1 (due to supply voltage change)
1
%
Frequency variation 2 (due to temperature change)
5
%
Error amplifier section
Common to FA7610C/12C/17C
Item
Symbol
V
B
I
B
A
V
G
B
V
OM+
V
OM–
I
OM+
Test condition
Min.
Typ.
Max.
Unit
Reference voltage
0.515
0.525
0.535
V
Input bias current
5
100
nA
Open-loop voltage gain
70
dB
Unity-gain bandwidth
0.6
MHz
Maximam output voltage (Pin 2)
R
NF
= 100k
R
NF
= 100k
V
OM
= 1V
V
REF
–0.2
V
200
mV
μ
A
Output source current (Pin 2)
40
85
200
PWM comparator section
Item
Symbol Test condition
FA7610C
FA7612C
FA7617C
Unit
Min.
Typ.
Max.
Min.
Typ.
Max.
Min.
Typ.
Max.
Input threshold voltage (pin 2)
V
TH0
V
TH50
α
M
Duty cycle = 0%
0.85
0.95
0.85
0.95
0.85
0.95
V
Input threshold voltage (pin 2)
Duty cycle = 50%
1.1
1.1
1.1
V
Maximum duty cycle
(Pin 2 = 1.2V)
58
64
75
100
63
67
71
%