mb3883pv Fujitsu Microelectronics, Inc., mb3883pv Datasheet - Page 16

• Manufacturer Part Number: mb3883pv
• Description: 6-ch Dc/dc Converter Ic With Synchronous Rectification For Voltage Step-up And Step-down
• Manufacturer: Fujitsu Microelectronics, Inc.

16
MB3883
10000
0.9
0.8
0.7
0.6
0.5
0.4
0.3
0.2
0.1
1000
560
540
520
500
480
460
440
1
0
100
0
10
Triangular wave oscillator frequency f
Ta
VCC
RT
Triangular wave upper and lower limit voltage
40
10
vs. triangular wave oscillator frequency
Triangular wave oscillator frequency
Triangular wave oscillator frequency
18 k
25 C
200
5 V
20
Ambient temperature Ta ( C)
VCC
CTL
RT
CT
vs. ambient temperature
Timing capacitor C
vs. timing capacitor
400
0
RT
18 k
100 pF
100
CTL1, 2
5 V
100 k
20
600
CTL3
40
1000
800
RT
T
CTL4
RT
(pF)
60
18 k
Ta
VCC
1000
4.3 k
Upper
Lower
CTL5
OSC
25 C
80
5 V
(kHz)
10000
1200
5 V
100
10000
0.9
0.8
0.7
0.6
0.5
0.4
0.3
0.2
0.1
1000
100
1
0
10
40
Triangular wave upper and lower limit voltage
VCC
RT
CT
1 k
CT
Triangular wave oscillator frequency
18 k
100 pF
20
5 V
1000 pF
Ambient temperature Ta ( C)
vs. ambient temperature
Timing resistor R
CT
0
vs. timing resistor
10 k
470 pF CT
20
40
100 k
220 pF
T
CT
( )
CT
60
Ta
VCC
47 pF
100 pF
Lower
Upper
(Continued)
80
25 C
5 V
1 M
100