MB3827 Datasheet, PDF (15/41 Pages) Fujitsu Component Limited. – 6-ch DC/DC Converter IC With Synchronous Rectification for voltage step-up and step-down

MB3827
(Continued)
Parameter
Threshold voltage
Maximum duty cycle
Threshold voltage
Input current
Threshold voltage
Symbol Pin No.
(Ta = +25°C, VCC = 9 V, VSS = 4.4 V, VG = 11 V)
Conditions
Value
Unit
Min. Typ. Max.
VT0
1
Duty cycle = 0 %
0.2
0.3
—
V
VTmax
1
—
Dtr
1
CT=100pF,RT=18kΩ,
RB=24kΩ,RL=390kΩ
VTD0
52,49,48,55,
60,61,62,63
Duty cycle = 0 %
VTD100
52,49,48,55,
60,61,62,63
Duty cycle = 100 %
IDTC
43,42,41,40,
35,22,16,15
DTC = 0.4 V
—
70
1.0
—
–1.0
0.77
80
1.1
1.8
–0.3
0.87 V
90 %
—V
1.9 V
— µA
VTD0
1
Duty cycle = 0 %
0.2
0.3
—
V
VTD100
1
Duty cycle = 100 %
—
0.8 0.9 V
Output source current
Output sink current
Output voltage
Output source current
Output sink current
Output voltage
Output source current
ISOURCE
52,55,60,
61,62,63
Duty ≤ 5 %, OUT= 4.4V
—
ISINK
52,55,60,
61,62,63
Duty ≤ 5 %, OUT= 9V
—
VOH
52,55,60,
61,62,63
IO = −15 mA
3.5
VOL
52,55,60,
61,62,63
IO = 15 mA
—
ISOURCE 50,57 Duty ≤ 5 %, OUT= 0V
—
ISINK
50,57 Duty ≤ 5 %, OUT= 4V —
VOH
50,57 IO = −15 mA
3.5
VOL
50,57 IO = 15 mA
—
–90
80
4.0
100
–100
80
4.0
100
— mA
— mA
—V
300 mV
— mA
— mA
—V
300 mV
ISOURCE
49
RB= 24kΩ, OUT= 0.7V –2.6 –2.0 –1.4 mA
Output sink current
*: Standard design value.
ISINK
49 Duty ≤ 5 %, OUT= 0.7V —
40
— mA
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