UTC L2800
100
Maximum duty cycle, t
DUTY
(%)
LINEAR INTEGRATED CIRCUIT
Oscillation Frequency vs.Maximum Duty Cycle
Vcc=2V
C
T
=270pF
Ta=+25℃
80
60
40
20
0
10K
100K
1M
Oscillation frequency ,fosc (Hz)
Output Pin Voltage and Current Waveforms (Reference Data)
(V)
6
4
V
OUT
2V
Vcc=2V
C
T
=270pF
R
T
=1.0kΩ
2
0
(mA)
50
I
OUT
0
-50
10mV
0
0.4
0.8
1.2
200ns
1.6
2.0
t
(μs)
Note:The OFF delay time of VOUT depends on
the characteristics of the external transistor.
Vcc
22μH
(5V)
UTC L2800
5
I
OUT
18kΩ
V
OUT
10μF
2kΩ
4
390Ω
-IN
Measurement Circuit Diagram
UTC
UNISONIC TECHNOLOGIES CO., LTD.
7
QW-R121-010,A