Fujitsu MB3878 Power Supply User Manual


 
MB3878
10
(Continued)
Ta = +25 °C
VCC = 19 V
CTL = 5 V
1 M
100 k
10 k
10 k 100 k 1 M
Ta = +25 °C
CTL = 5 V
RT = 47 k
340
330
320
310
300
290
280
270
260
250
240
0 5 10 15 20 25
VCC = 19 V
CTL = 5 V
RT = 47 k
340
330
320
310
300
290
280
270
260
250
240
40 20 0 20 40 60 80 100
VCC = 19 V
CTL = 5 V
5.0
4.0
3.0
2.0
1.0
0.0
1.0
2.0
3.0
4.0
5.0
40 20 0 20 40 60 80 100
Triangular wave oscillator frequency vs.
timing resistor
Timing resistor R
T ()
Triangular wave oscillator frequency vs.
power supply voltage
Power supply voltage VCC (V)
Triangular wave oscillator frequency
Triangular wave oscillator
frequency f
OSC (kHz)
Ambient temperature Ta ( °C)
Error amplifier threshold voltage vs.
ambient temperature (Error Amp.3)
Error amplifier threshold voltage VTH (%)
Ambient temperature Ta ( °C)
Triangular wave oscillator frequency
f
OSC (Hz)
Triangular wave oscillator frequency
f
OSC (kHz)