MB39A114 Datasheet, PDF (13/54 Pages) Fuji Electric – DC/DC Converter IC for Charging Li-ion Battery

MB39A114
Triangular Wave Oscillation Frequency vs.
Power Supply Voltage
340
330
320
310
300
290
280
270
260
0
Ta = +25 °C
CTL = 5 V
RT = 47 kΩ
5
10
15
20
25
Power supply voltage VCC (V)
Triangular Wave Oscillation Frequency vs.
Operating Ambient Temperature
340
330
VCC = 19 V
CTL = 5 V
320
RT = 47 kΩ
310
300
290
280
270
260
−40 −20 0
20 40 60 80 100
Operating ambient temperature Ta ( °C)
Triangular Wave Oscillation Frequency vs. Timing Resistor
1000
Ta = +25 °C
VCC = 19 V
CTL = 5 V
100
10
10
100
1000
Timing resistor RT (kΩ)
Error Amplifier Threshold Voltage vs. Ambient Temperature
4.25
4.24
4.23
4.22
4.21
4.20
4.19
4.18
4.17
4.16
4.15
−40
VCC = 19 V
CTL = 5 V
−20 0 20 40 60 80 100
Ambient temperature Ta ( °C)
(Continued)
13