MB3878 Fujitsu Media Devices, MB3878 Datasheet - Page 8

• Manufacturer Part Number: MB3878
• Description: DC/DC Converter IC for Charging
• Manufacturer: Fujitsu Media Devices

8
MB3878
(Continued)
* : Standard design value
Current detection
amplifier block
(Current Amp.1,
Current Amp.2)
PWM comparator
block
(PWM Comp.)
Output block
(OUT)
Control block
(CTL)
Bias voltage
block (VH)
General
Parameter
Output voltage
Output source
current
Output sink
current
Threshold voltage
Output source
current
Output sink
current
Output ON
resistor
Rise time
Fall time
CTL input voltage
Input current
Output voltage
Standby current
Power supply
current
Symbol
I
I
V
V
SOURCE
SOURCE
V
I
I
I
I
R
V
OUTCH
V
R
I
V
CTLH
VH
tr1
CTLL
OUTCL
SINK
SINK
tf1
I
CCS
OFF
CC
TH
OH
ON
TL
OL
2, 10
2, 10
2, 10 OUTC1 OUTC2 2 V
2, 10 OUTC1 OUTC2 2 V
5, 7,
5, 7,
Pin
No.
18,
18,
15
15
20
20
20
20
20
20
14
14
14
14
19
19
19
(Ta
Duty cycle
Duty cycle
OUT 11 V, Duty 5
OUT 16 V, Duty 5
OUT
OUT
OUT
(equivalent to Si4435
OUT
(equivalent to Si4435
Active mode
Standby mode
CTL
CTL
VCC
VH
VCC
CTL
VCC
CTL
(t
(t
7 V to 25 V,
1 f
1 f
25 C, VCC
0 to 30 mA
Conditions
5 V
0 V
0 V
5 V
45 mA
3300 pF
3300 pF
VCC (O)
VCC (O) ,
VCC (O) ,
OSC
OSC
45 mA
0
100
Duty)
Duty)
19 V, VCC (O)
1)
1)
V
Min.
150
4.7
1.4
5.5
CC
2
0
Value
V
Typ.
200*
300
100
200*
4.9
1.5
2.5
8.0
6.5
5.0
8.0
70*
60*
20
CC
2.0
19 V, VREF
0
0
V
Max.
12.0
12.0
200
200
2.6
9.7
0.8
4.5
25
10
CC
0.6
1
0 mA)
Unit
mV
mA
mA
mA
mA
ns
ns
V
V
V
V
V
V
A
A
A
A