Datasheet

8
UCC15701/2
UCC25701/2
UCC35701/2
VFF
CT
SYNC
Figure 2. Timing diagram for oscillator waveforms showing feedforward action and synchronization.
TYPICAL WAVEFORMS (cont.)
10
100
1000
20 60 100 140 180 220
RT [K ]
FREQUENCY [kHz]
100pF
150pF
220pF
330pF
470pF
Figure 3. Oscillator frequency vs. RT and CT.
TYPICAL CHARACTERISTIC CURVES
0.97
0.98
0.99
1.00
1.01
1.02
1.03
-55 -35 -15 5 25 45 65 85 105 125
TEMPERATURE [°C]
NORMALIZED DUTY CYCLE
VFF=0.8
VFF=3.2
Figure 5. Normalized maximum duty cycle vs.
temperature.
UDG-98208
0.98
0.99
1
1.01
1.02
-55 -35 -15 5 25 45 65 85 105 125
TEMPERATURE [°C]
VFF=3.2
VFF=0.8
CT=330pF
F
OSC = 100kHz
NORMALIZED FREQUENCY
Figure 4. Oscillator frequency vs. temperature.