SG3525A
ELECTRICAL CHARACTERISTICS
(continued)
Characteristics
SOFT−START SECTION
Soft−Start Current (V
shutdown
= 0 V)
Soft−Start Voltage (V
shutdown
= 2.0 V)
Shutdown Input Current (V
shutdown
= 2.5 V)
OUTPUT DRIVERS
(Each Output, V
CC
= +20 V)
Output Low Level
(I
sink
= 20 mA)
(I
sink
= 100 mA)
Output High Level
(I
source
= 20 mA)
(I
source
= 100 mA)
Under Voltage Lockout (V8 and V9 = High)
Collector Leakage, V
C
= +35 V (Note 6)
Rise Time (C
L
= 1.0 nF, T
J
= 25°C)
Fall Time (C
L
= 1.0 nF, T
J
= 25°C)
Shutdown Delay (V
DS
= +3.0 V, C
S
= 0, T
J
= +25°C)
Supply Current (V
CC
= +35 V)
6. Applies to SG3525A only, due to polarity of output pulses.
V
OL
−
−
V
OH
18
17
V
UL
I
C(leak)
t
r
t
f
t
ds
I
CC
6.0
−
−
−
−
−
19
18
7.0
−
100
50
0.2
14
−
−
8.0
200
600
300
0.5
20
V
mA
ns
ns
ms
mA
0.2
1.0
0.4
2.0
V
V
25
−
−
50
0.4
0.4
80
0.6
1.0
mA
V
mA
Symbol
Min
Typ
Max
Unit
V
ref
Clock
0.1
16
Reference Regulator
Flip/
Flop
O
s
c
i
l
l
a
t
o
r
15
0.1
V
CC
V
C
0.1
Out A
4
3.0k
PWM
ADJ.
Sync
3
1.0k
RT
6
Deadtime
1.5k
0.009
Ramp
100W
0.1
0.001
Comp
10k
1 = V
IO
2 = 1(+)
3 = 1(−)
1
2
−
V/I Meter
+
3
1
2
3
1
2
3
0.01
9
7
5
13
A
11
1.0k, 1.0W
(2)
B
14
Out B
PWM
50mA
12
GND
Softstart
+
5.0mF
1
2
3
1
2
−
E/A
+
5.0k
5.0k
8
10
2.0k
V
ref
DUT
Shutdown
Figure 2. Lab Test Fixture
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