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| CS3524A Datasheet, PDF (2/6 Pages) Cherry Semiconductor Corporation – Voltage Mode PWM Control Circuit with 200mA Output Drivers | |||
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Absolute Maximum Ratings
Supply Voltage (VIN) .................................................................................................................................................................40V
Collector Supply Voltage (VCC) ...............................................................................................................................................60V
Output Current (Each Output)...........................................................................................................................................200mA
Reference Output Current.....................................................................................................................................................50mA
Oscillator Charging Current ..................................................................................................................................................5mA
Power Dissipation at TA=25ËC.........................................................................................................................................1000mW
Power Dissipation at TJ=+25ËC........................................................................................................................................2000mW
Derate for Case Temperature above +25ËC........................................................................................................16mW/ËC
Storage Temperature Range ................................................................................................................................-65ËC to +150ËC
Lead Temperature Soldering: Wave Solder (through hole styles only)..........................................10 sec. max, 260°C peak
Reflow (SMD styles only) ......................................................................................60 sec. max above 183°C, 230°C peak
Electrical Characteristics: 0ËC ⤠TA ⤠+70ËC for the CS3524A; VIN = VCC = 20V; unless otherwise stated.
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
s Turn-on Characteristics
Input Voltage
Operating range after Turn-on
8
40
Turn-on Threshold
5.5
7.5
8.5
Turn-on Current
Operating Current
Turn-on Hysteresis*
VIN Turn-on - 100mV
VIN = 8 to 40V
2.5
4.0
5
10
0.6
UNIT
V
V
mA
mA
V
s Reference Section
Output Voltage
Line Regulation
Load Regulation
Temperature Stability*
Short Circuit Current
Output Noise Voltage*
Long Term Stability*
TA = 25ËC
VIN = 10 to 40V
IL = 0 to 20mA
Over Operating Range
VREF = 0, TA = 25ËC
10Hz ⤠f ⤠10kHz, TA = 25ËC
TA = 125ËC; 1000 Hrs.
4.90
5.00
10
20
20
80
40
20
s Oscillator Section (Unless otherwise specified, RT = 2700â¦, CT = 0.01µF)
Initial Accuracy
TA = 25ËC
39
43
Temperature Stability*
Over Operating Temperature Range
1
Minimum Frequency
Maximum Frequency
Output Amplitude*
Output Pulse Width*
Ramp Peak
RT = 150kâ¦, CT = 0.1µF
RT = 2.0kâ¦, CT = 470pF
TA = 25ËC
TA = 25ËC
500
3.5
0.5
3.3
3.5
Ramp Valley
0.7
0.9
5.20
V
30
mV
50
mA
50
mV
100
mA
µVrms
50
mV
47
kHz
2
%
120
Hz
kHz
V
µs
3.7
V
1.0
V
s Error Amplifier Section (Unless otherwise specified, VCM = 2.5V)
Input Offset Voltage
2
Input Bias Current
1
Input Offset Current
0.5
Common Mode
Rejection Ratio
VCM = 1.5 to 5.5V
Power Supply Rejection Ratio VIN = 10 to 40V
60
75
50
60
Output Swing
Minimum Total Range
0.5
* These parameters are guaranteed by design but not 100% tested in production.
2
10
mV
10
µA
1.0
µA
dB
dB
5.0
V
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