MB3887 Fujitsu, MB3887 Datasheet - Page 13

• Manufacturer Part Number: MB3887
• Description: DC/DC Converter IC
• Manufacturer: Fujitsu

100 k
10 k
320
315
310
305
300
295
290
285
280
275
270
265
260
1 M
−40
10
Operating ambient temperature Ta ( °C)
Triangular wave oscillation frequency
Triangular wave oscillation frequency
vs. Operating ambient temperature
−20
Timing resistor R
vs. Timing resistor
0
20
100
40
T
(kΩ)
60
VCC
CTL
RT
Ta
VCC
CTL
=
=
=
=
47 kΩ
+25
=
=
80
5 V
19 V
5 V
19 V
°C
1000
100
340
330
320
310
300
290
280
270
260
4.25
2.24
4.23
2.22
4.21
4.20
4.19
4.18
4.17
4.16
4.15
0
−40
Operating ambient temperature Ta ( °C)
vs. Operating ambient temperature
Triangular wave oscillation frequency
Error amplifier threshold voltage
−20
Power supply voltage V
5
vs. Power supply voltage
0
10
20
40
15
MB3887
Ta
CTL
RT
60
CC
VCC = 19 V
CTL = 5 V
=
20
=
(V)
+25
=
(Continued)
47 kΩ
5 V
80
°C
25
100
13