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MB3875 Datasheet, PDF (12/27 Pages) Fujitsu Component Limited. – DC/DC Converter IC for Charging | |||
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MB3875/MB3877
(Continued)
Triangular wave oscillator frequency vs.
timing resistor
1M
Ta = +25 °C
VCC = 16 V (MB3875)
VCC = 19 V (MB3877)
CTL = 5 V
100 k
10 k
10 k
100 k
1M
Timing resistor RT (â¦)
Triangular wave oscillator frequency vs.
ambient temperature
350
340
330
320
310
300
290
280
270
260
250
â40 â20 0
VCC = 16 V (MB3875)
VCC = 19 V (MB3877)
CTL = 5 V
RT = 47 kâ¦
20 40 60 80 100
Ambient temperature Ta (°C)
Triangular waveoscillator frequency vs.
power supply voltage
350
Ta = +25 °C
340
CTL = 5 V
330
RT = 47 kâ¦
320
310
300
290
280
270
260
250
0
5
10
15
20
25
Power supply voltage VCC (V)
Error amplifier threshold voltage vs.
ambient temperature
5.0
4.0
3.0
2.0
1.0
0.0
â1.0
â2.0
â3.0
â4.0
â5.0
â40 â20 0
VCC = 16 V (MB3875)
VCC = 19 V (MB3877)
CTL = 5 V
20 40 60 80 100
Ambient temperature Ta (°C)
12
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