TEA2018 데이터 시트보기 (PDF) - STMicroelectronics
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TEA2018 Datasheet PDF : 7 Pages
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TEA2018A
ELECTRICAL OPERATING CHARACTERISTICS
Tamb = 25oC, potentials referenced to ground (unless otherwise specified) (see test circuit)
Symbol
∆VCC+
ICC(sb)
Vth(IC)
R(IC)
V7(th)
IS
τmax
AV
II+
VREF
∆VREF
∆T
tOSC
∆fOSC
∆T
∆fOSC
∆VCC
ton(min)
Parameter
Hysteresis on VCC+ Threshold
Stand-by Supply Current before starting (VCC+ < VCC(start))
Current Limitation Threshold Voltage (Pin 3)
Collector Current Sensing Input Resistance
Demagnetization Sensing Threshold
Demagnetization Sensing Input Current (Pin 7 = 0V)
Maximum Duty Cycle
Error Amplifier Gain
Error Amplifier Input Current (non-inverting input)
Internal Reference Voltage
Reference Voltage Temperature Drift
Oscillator Free-running Period ( R = 59kΩ, C = 1.2nF)
Oscillator Frequency Drift with Temperature (VCC+ = +8V)
Oscillator Frequency Drift with VCC+ (+8V < VCC+ < +14V)
Minimum Conducting Time (Ct = 1nF)
Min. Typ. Max. Unit
0.7 1.1 1.6 V
1 1.6 mA
-1100 -1000 -880 mV
1000
Ω
75 100 125 mV
1
µA
60 70
%
50
2
µA
2.3 2.4 2.5 V
10-4
V/oC
44 48 52 µs
0.05
%/oC
0.5
%/V
2
µs
RECOMMENDED OPERATING CONDITIONS
Symbol
VCC+
VCC-
IO
foper
Positive Supply Voltage
Negative Supply Voltage
Output Current
Operating Frequency
Parameter
TEST CIRCUIT
V8
V7
V6
Min. Typ. Max. Unit
8
V
-3
V
0.5 A
30
kHz
22nF
470Ω
10Ω
59kΩ
1%
1.2nF
1%
22nF
8
7
6
TEA2018A
1
2
3
4.7nF
5
4
22nF 470nF
100Ω
V1
V3
V4
3/7
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