Philips Semiconductors
Product specification
SMPS control circuit
SG3524
ABSOLUTE MAXIMUM RATINGS
SYMBOL
V
IN
I
OUT
I
REF
P
D
Input voltage
Output current (each output)
Reference output current
Oscillator charging current
Power dissipation
Package limitation
Derate above 25°C
T
A
T
STG
Operating temperature range
Storage temperature range
1000
8
0 to +70
-65 to +150
mW
mW/°C
°C
°C
PARAMETER
RATING
40
100
50
5
UNIT
V
mA
mA
mA
DC ELECTRICAL CHARACTERISTICS
T
A
=0°C to +70°C, V
IN
=20V, and f=20kHz, unless otherwise specified.
SYMBOL
PARAMETER
TEST CONDITIONS
LIMITS
Min
4.6
V
IN
=8 to 40V
I
L
=0 to 20mA
f=120Hz, T
A
=25°C
V
REF
=0, T
A
=25°C
Over operating temperature range
T
A
=25°C
C
T
=0.001
µF,
R
T
=2kΩ
R
T
and C
T
constant
V
IN
=8 to 40V, T
A
=25°C
Over operating temperature range
Pin 3, T
A
=25°C
C
T
=0.01
µF,
T
A
=25°C
V
CM
=2.5V
V
CM
=2.5V
68
T
A
=25°C
T
A
=25°C
A
V
=0dB, T
A
=25°C
T
A
=25°C
% each output “ON”
Zero duty cycle
Maximum duty cycle
0.5
0
1
3.5
1
Pin 9=2V with error amplifier set for maximum out,
T
A
=25°C
180
200
0.2
-1
+1
220
1.8
70
3
3.8
45
3.5
0.5
2
2
80
3.4
10
10
Typ
5.0
10
20
66
100
0.3
20
300
5
1
2
1
Max
5.4
30
50
UNIT
Reference section
V
OUT
Output voltage
Line regulation
Load regulation
Ripple rejection
I
SC
Short circuit current limit
Temperature stability
Long-term stability
V
mV
mV
dB
mA
%
mV/kHz
kHz
%
%
%
V
P
µs
mV
µA
dB
V
dB
MHz
V
%
V
V
µA
mV
mV/°C
V
Oscillator section
f
MAX
Maximum frequency
Initial accuracy
Voltage stability
Temperature stability
Output amplitude
Output pulse width
Error amplifier section
V
OS
I
BIAS
V
CM
CMRR
BW
V
OUT
Input offset voltage
Input bias current
Open-loop voltage gain
Common-mode voltage
Common-mode rejection ratio
Small-signal bandwidth
Output voltage
Duty cycle
Input threshold
Input threshold
I
BIAS
Input bias current
Sense voltage
Sense voltage T.C.
V
CM
Common-mode voltage
Comparator section
Current limiting section
1994 Aug 31
2
PHILIPS [ NXP SEMICONDUCTORS ]
