V
CM
= 1.5 to 5.2V
V
IN
= 8 to 35V
PWM COMPARATOR
V
PIN1
– V
PIN2
≥
150mV
V
PIN2
– V
PIN1
≥
150mV
Zero Duty Cycle
Max. Duty Cycle
V
SHUTDOWN
= 0V
V
SHUTDOWN
= 2V
To Outputs
V
SHUTDOWN
= 2.5V
V
SHUTDOWN
= 2.5V
OUTPUT DRIVERS (each output)
4
T
J
= 25°C
I
SINK
= 20mA
I
SINK
= 100mA
I
SOURCE
= 20mA
I
SOURCE
= 100mA
V
COMP
= High
V
C
= 35V
C
L
= 1nF
C
L
= 1nF
TOTAL STANDBY CURRENT
T
J
= 25°C
T
J
= 25°C
V
IN
= 35V
Output Low Level
Output High Level
Common Mode Rejection
Supply Voltage Rejection
Minimum Duty Cycle
Maximum Duty Cycle
Input Threshold
Input Threshold
Input Bias Current
Soft Start Current
Soft Start Low Level
Shutdown Threshold
Shutdown Input Current
Shutdown Delay
Output Low Level
Output High Level
Undervoltage Lockout
Output Leakage
Rise Time
Fall Time
Supply Current
IP1525A
IP1527A
Typ.
IP3525A
IP3527A
Typ.
Parameter
Test Conditions
ERROR AMPLIFIER SECTION (cont.)
3
Min.
Max.
Min.
Max.
Units
0.2
0.5
3.8
5.6
60
75
50
60
0
45
49
0.6
0.9
3.3
3.6
0.05
1.0
25
50
80
0.4
0.6
0.6
1.3
2.0
0.1
1.0
0.2
0.5
0.2
0.4
1.0
2.0
18
19
17
18
5
7
8
200
100
600
50
300
10
20
0.2
0.5
3.8
5.6
60
75
50
60
0
45
49
0.6
0.9
3.3
3.6
0.05
1.0
25
50
80
0.4
0.6
0.6
1.3
2.0
0.1
1.0
0.2
0.5
0.2
0.4
1.0
2.0
18
19
17
18
5
7
8
200
100
600
50
300
10
20
V
dB
%
V
μ
A
μ
A
V
mA
μ
s
V
V
V
μ
A
ns
mA
LAB
SEME
IP1525A SERIES
IP1527A SERIES
Semelab plc.
Telephone (01455) 556565. Telex: 341927. Fax (01455) 552612.
Prelim. 3/95
NOTES
1. Test Conditions unless otherwise stated:
V
IN
= 20V
T
J
= –55 to +125°C for IP1525A / IP1527A
T
J
= 0 to +70°C
for IP3525A / IP3527A
2. Oscillator Section Test Conditions:
f
OSC
= 40kHz
(R
T
= 3.6k
, C
T
= 0.01
μ
F , R
D
= 0)
3. Error Amplifier Section Test Condition:
V
CM
= 5.1V
4. Output Driver Section Test Condition:
V
C
= 20V
ELECTRICAL CHARACTERISTICS
(T
J
= Over Operating Temperature Range unless otherwise stated)
SHUTDOWN SECTION