Typical Performance Characteristics continued
Output Saturation Voltage vs. Output Current Over
Temperature
5
4
3
TA = 125˚C
2
TA = 25˚C
1
TA = –55˚C
0
0
50
100
150
200
250
OUTPUT COLLECTOR CURRENT (mA)
Open Loop Test Circuit
VCC
2kΩ
1W
2kΩ
1W
IS
VIN
VOUT
A
VOUT
B
SYNC
VREF
CS3524A
EA
EB
100kΩ 100kΩ
SHUTDOWN
2kΩ
10kΩ
2kΩ
0.1
CT
0.1
RT
10kΩ
1kΩ
Note: The CS3524A should be able to be tested in any 3524 test circuit with two possible exceptions:
1. The higher gain-bandwidth of the current limit amplifier in the CS 3524A may cause oscillations in an uncom-
pensated 3524 test circuit.
2. The effect of the shutdown, cannot be seen at the compensation terminal, but must be
observed at the outputs.
5