CS3524A
Electrical Characteristics:
continued
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
s
Error Amplifier Section (Unless otherwise specified, V
CM
= 2.5V): continued
Open Loop Voltage Gain
Gain-Bandwidth*
∆
VOUT
= 1 to 4V, R
L
≥
10 MΩ
T
A
= 25˚C, A
V
= 0dB
60
80
3
dB
MHz
s
Current Limit Amplifier (Unless otherwise specified, V
SENSE
= V
O
)
Input Offset Voltage
Input Offset Voltage
Input Bias Current
Common Mode
Rejection Ratio
Output Swing
Open Loop Voltage Gain
Delay Time*
s
Output Section (Each Output)
Collector Emitter Voltage
Collector Leakage Current
Saturation
Emitter Output Voltage
Rise Time*
Fall Time*
Comparator Delay*
Shutdown Delay*
Shutdown Threshold
Thermal Shutdown*
* These parameters are guaranteed by design but not 100% tested in production.
Typical Performance Characteristics
Error Amplifier Voltage Gain vs. Frequency Over RF
50
80
T
A
= 25˚C, EA Set for Max. Output
Over Operating Temperature Range
180
170
200
-1
220
230
-10
mV
mV
µA
dB
dB
V
SENSE
= 0 to 15V
Minimum Total Range
∆
VOUT
= 1 to 4V, R
L
≥
10MΩ
∆V
IN
= 300mV
50
50
0.5
70
60
60
5.0
80
300
Power Supply Rejection Ratio V
IN
= 10 to 40V
V
dB
ns
I
C
= 100µA
V
CE
= 50V
I
C
= 20mA
I
C
= 200mA
I
E
= 50mA
T
A
= 25˚C, R = 2kΩ
T
A
= 25˚C, R = 2kΩ
T
A
= 25˚C, V
COMP
to V
OUT
T
A
= 25˚C, V
SHUT
to V
OUT
T
A
= 25˚C, R
C
= 2kΩ
60
80
0.1
0.2
1.0
20.0
0.4
2.2
V
µA
V
V
V
ns
ns
ns
ns
1.0
V
˚C
17
18
200
100
300
200
0.5
0.7
165
Duty Cycle vs. Input Voltage
OPEN VOLTAGE GAIN (dB)
R
F
= 1MΩ
60
R
F
= 300kΩ
R
F
= 100kΩ
40
R
F
= 30kΩ
V
IN
= 20V
T
A
= 25˚C
DUTY-CYCLE (ONE OUTPUT) - %
R
F
=
∞
40
V
IN
= 20V
R
T
= 2700Ω
T
A
= 25˚C
CT
F
0
µ
=1
20
Note: Duty-Cycle is
percent of two
clock periods that
one output conducts
0
1
2
3
4
5
20
0
R
F
is impedance to ground.
Values below 30kΩ will begin
to limit the maximum
duty-cycle.
10
0
100
1k
10k
100k
1M
FREQUENCY (Hz)
INPUT VOLTAGE V
IN
3
CT
=
1
µ
F
30
CHERRY [ CHERRY SEMICONDUCTOR CORPORATION ]
