SG3525 查看數據表（PDF） - Motorola => Freescale
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SG3525 Datasheet PDF : 8 Pages
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SG3525A SG3527A
ELECTRICAL CHARACTERISTICS (VCC = +20 Vdc, TA = Tlow to Thigh [Note 4], unless otherwise noted.)
Characteristics
Symbol Min
Typ
Max Unit
REFERENCE SECTION
Reference Output Voltage (TJ = +25°C)
Line Regulation (+8.0 V ≤ VCC ≤ +35 V)
Load Regulation (0 mA ≤ IL ≤ 20 mA)
Temperature Stability
Total Output Variation
Includes Line and Load Regulation over Temperature
Vref
5.00
5.10
5.20
Vdc
Regline
–
10
20
mV
Regload
–
20
50
mV
∆Vref/∆T
–
20
–
mV
∆Vref
4.95
–
5.25
Vdc
Short Circuit Current
(Vref = 0 V, TJ = +25°C)
Output Noise Voltage (10 Hz ≤ f ≤ 10 kHz, TJ = +25°C)
Long Term Stability (TJ = +125°C) (Note 5)
OSCILLATOR SECTION (Note 6, unless otherwise noted.)
Initial Accuracy (TJ = +25°C)
Frequency Stability with Voltage
(+8.0 V ≤ VCC ≤ +35 V)
ISC
Vn
S
∆fosc
D VCC
–
80
100
mA
–
40
200 µVrms
–
20
50 mV/khr
–
±2.0
±6.0
%
–
±1.0
±2.0
%
Frequency Stability with Temperature
∆fosc
–
±0.3
–
%
DT
Minimum Frequency (RT = 150 kΩ, CT = 0.2 µF)
Maximum Frequency (RT = 2.0 kΩ, CT = 1.0 nF)
Current Mirror (IRT = 2.0 mA)
Clock Amplitude
Clock Width (TJ = +25°C)
Sync Threshold
fmin
fmax
–
50
–
Hz
400
–
–
kHz
1.7
2.0
2.2
mA
3.0
3.5
–
V
0.3
0.5
1.0
µs
1.2
2.0
2.8
V
Sync Input Current (Sync Voltage = +3.5 V)
–
1.0
2.5
mA
ERROR AMPLIFIER SECTION (VCM = +5.1 V)
Input Offset Voltage
VIO
–
2.0
10
mV
Input Bias Current
IIB
–
1.0
10
µA
Input Offset Current
IIO
–
–
1.0
µA
DC Open Loop Gain (RL ≥ 10 MΩ)
AVOL
60
75
–
dB
Low Level Output Voltage
VOL
–
0.2
0.5
V
High Level Output Voltage
VOH
3.8
5.6
–
V
Common Mode Rejection Ratio (+1.5 V ≤ VCM ≤ +5.2 V)
CMRR
60
75
–
dB
Power Supply Rejection Ratio (+8.0 V ≤ VCC ≤ +35 V)
PSRR
50
60
–
dB
PWM COMPARATOR SECTION
Minimum Duty Cycle
DCmin
–
–
0
%
Maximum Duty Cycle
DCmax
45
49
–
%
Input Threshold, Zero Duty Cycle (Note 6)
Vth
0.6
0.9
–
V
Input Threshold, Maximum Duty Cycle (Note 6)
Vth
–
3.3
3.6
V
Input Bias Current
IIB
–
0.05
1.0
µA
NOTES: 4. Tlow = 0° for SG3525A, 3527A Thigh = +70°C for SG3525A, 3527A
5. Since long term stability cannot be measured on each device before shipment, this specification is an engineering estimate of average stability
from lot to lot.
6. Tested at fosc = 40 kHz (RT = 3.6 kΩ, CT = 0.01 µF, RD = 0Ω).
MOTOROLA ANALOG IC DEVICE DATA
3
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