LAB
TOP VIEW
VCC VZ FEEDBACK GAIN
1 8
SEME
IP5661C IP5561C
GND OUTPUT CURRENT SENSE RT/CT
2
7
SWITCHED–MODE POWER SUPPLY CONTROL CIRCUIT
FEATURES
• STABILISED POWER SUPPLY • TEMPERATURE COMPENSATED REFERENCE SOURCE • SAWTOOTH GENERATOR • PULSE WIDTH MODULATOR • CURRENT LIMITING • 8 PIN DIP
VCC
3
6
4
5
J Package – 8 Pin Ceramic DIP N Package – 8 Pin Plastic DIP D Package – 8 Pin Plastic (150) SOIC
BLOCK DIAGRAM
RT CT
5
REFERENCE
VOLTAGE ERROR AMP FEEDBACK GAIN
3
SAWTOOTH GENERATOR
DESCRIPTION
7
S
4
OUTPUT
PWM
LATCH R
0.
5V CURRENT SENSE
6
STABILISED SUPPLY
2
8.
2V
Vz
1
8
VCC
GND
The IP5561 is a control circuit for use in switched mode power supplies.
This single mon...