IP3524 Seme LAB, IP3524 Datasheet - Page 2

• Manufacturer Part Number: IP3524
• Description: REGULATING PULSE WIDTH MODULATORS
• Manufacturer: Seme LAB

LAB
DESCRIPTION
ended or push-pull switching regulators. Included are voltage reference, error amplifer, oscillator, PWM comparator,
output drivers, current limiting and shutdown circuitry.
allowing tighter and more complete specification of electrical performance.
BLOCK DIAGRAM
RECOMMENDED OPERATING CONDITIONS
V
R
C
T
Semelab plc.
SEME
AMB
IN
T
T
The IP1524 series of PWM switching regulator control circuits contains all the functions required to implement single-
Although functionally indentical to the SG1524 series, SEMELAB has incorporated several improvements to the IP1524
Input Voltage
Collector Voltage
Error Amp Common Mode Range
Output Current
Reference Load Current
Oscillator Charging Current
Oscillator Frequency Range
Oscillator Timing Resistor
Oscillator Timing Capacitor
Operating Ambient Temperature Range
Telephone [phone]. Telex: 341927. Fax [phone].
(SUBSTRATE)
SHUTDOWN
INPUT
INPUT
GND
INV.
N.I.
V
R
C
IN
T
T
15
10
6
7
1
2
8
ERROR
AMP
OSCILLATOR
REFERENCE
REGULATOR
COMPARATOR
+5V
1k
COMPENSATION
9
OSCILLATOR
OUTPUT
10k
16
3
+5V
(each transistor)
IP1524
IP2524
IP3524
+5V TO ALL
INTERNAL CIRCUITRY
FLOP
FLIP
+5V
C.L.
NOR
NOR
4
5
+SENSE
–SENSE
IP1524 SERIES
12
11
13
14
1.8k to 100k
30 A to 2mA
50Hz to 500kHz
+1.8 to +3.4V
C
E
C
E
1nF to 0.1 F
–55 to +125°C
-25 to +85°C
A
A
B
B
+8 to +40V
0 to +40V
0 to 100mA
0 to 20mA
0 to +70°C
Prelim. 3/95