NE5568 Просмотр технического описания (PDF) - Philips Electronics
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NE5568 Datasheet PDF : 2 Pages
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Philips Semiconductors
Switched-mode power supply controller
Product specification
NE5568
DC ELECTRICAL CHARACTERISTICS
VCC=12V, TA=25°C, unless otherwise specified.
SYMBOL
PARAMETER
Reference section
VREF
Internal reference voltage
VZ
Internal zener ref
Temperature coefficient of VREF
Temperature coefficient of VZ
Oscillator section
f
Frequency range
Initial accuracy
Duty cycle range
Current limiting
IIN
Input current
Single pulse inhibit delay
Current limit trip level
Error amplifier
Open-loop gain
Feedback resistor
BW
Small-signal bandwidth
VOH
Output voltage swing
VOL
Output voltage swing
Output stage
IOUT
VCE
Output current
Saturation
Supply voltage/current
ICC
Supply current
VCC
Supply voltage
Low supply protection
Pin 1 threshold
NOTES:
All curves and applications of NE5561 apply exactly
TEST CONDITIONS
TA=25°C
Over temperature
IL=7mA
Over temperature
RT and CT Constant
fo=20kHz
Pin 6=250mV
Inhibit delay time for
20% overdrive at
TA=25°C
Over temp.
IOUT=20mA
IOUT=40mA
Over temperature
IC=20mA, over temperature
IC=40mA, over temperature
IZ=0, voltage-fed
TA=25°C
Over temp.
IS=10mA, current-fed
ICC=30mA, current-fed
NE5568
Min Typ Max
UNIT
3.69 3.75 3.84
V
3.66
3.87
V
7.8
8.2
8.8
V
± 100
ppm/°C
± 200
ppm/°C
50
100k
Hz
5
%
0
98
%
-2
-10
µA
-20
µA
0.88 1.10
µs
0.7
0.8
µs
0.400 0.500 0.600
V
60
dB
10k
Ω
3
MHz
6.2
V
0.7
V
20
mA
0.4
V
0.5
V
10.0
mA
13.0
mA
19.0 21.0 24.0
V
20.0
30.0
V
8.0
9.0 10.5
V
1994 Aug 31
2
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