MB3875/3877
(Continued)
Triangular wave oscillator frequency vs.
power supply voltage
Triangular wave oscillator frequency vs.
timing resistor
1 M
350
340
Ta = +25 °C
Ta = +25 °C
CTL = 5 V
V
V
CC = 16 V (MB3875)
CC = 19 V (MB3877)
RT = 47 kΩ
330
320
310
300
CTL = 5 V
100 k
290
280
270
260
250
10 k
10 k
100 k
1 M
0
5
10
15
20
25
Timing resistor RT (Ω)
Power supply voltage VCC (V)
Triangular wave oscillator frequency vs.
ambient temperature
Error amplifier threshold voltage vs.
ambient temperature
350
340
330
320
310
300
290
280
270
260
250
5.0
VCC = 16 V (MB3875)
VCC = 19 V (MB3877)
CTL = 5 V
V
V
CC = 16 V (MB3875)
CC = 19 V (MB3877)
4.0
3.0
CTL = 5 V
RT = 47 kΩ
2.0
1.0
0.0
−1.0
−2.0
−3.0
−4.0
−5.0
−40
−20
0
20
40
60
80
100
−40
−20
0
20
40
60
80
100
Ambient temperature Ta (°C)
Ambient temperature Ta (°C)
11
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