MB3813 データシートの表示（PDF） - Fujitsu
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MB3813 Datasheet PDF : 22 Pages
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MB3813A/MB3833A/MB3843
s ELECTRICAL CHARACTERISTICS
Parameter
Symbol
Pin
no.
Condition
(VCC = Vin1 = +16 V, VSEL = 0 V, Ta = +25°C)
Min.
Value
Typ.
Unit Remarks
Max.
Reference
voltage block
(Ref)
Output
voltage
Input
stability
Load
stability
VREF
Line
Line
Line
Load
9
—
2.475
9 VCC = 12 V to 18 V
—
9 VCC = 8 V to 18 V
—
9 VCC = 7 V to 18 V
—
9 VREF = –0 µA to –500 µA —
2.500
1.0
1.0
1.0
3.0
2.525
10.0
10.0
10.0
10.0
V
mV MB3813A
mV MB3833A
mV MB3843
mV
Under voltage
lockout circuit
block (UVLO)
Threshold
voltage
VTH
Hysteresis
voltage
VH
VTH
Threshold
voltage
VTH
VTH
Input voltage
detector block
(VLDET)
VH
Hysteresis
voltage
VH
VH
IIH
Input
IIH
current
IIH
IIL
Soft start block Charge
(UVLO)
current
ICS
Triangular wave
oscillator block
(OSC)
Oscillator
frequency
fOSC
VT1
VT1
Error amplifier
(Error Amp.1)
Threshold VT1
voltage
VT1
VT1
VT1
9 VREF = “L” → “H”
9
—
1
1 Vin1 = “L” → “H”
1
1
1
—
1
1
1 Vin1 = 16 V
1
1 Vin1 = 0 V
11
—
1.8
2.0
2.2
V
—
0.2
0.35 V
10.2 11.0 11.8 V MB3813A
6.7
7.3
7.9
V MB3833A
5.8
6.3
6.8
V MB3843
—
1.0
2.0
V MB3813A
—
0.7
1.4
V MB3833A
—
0.57
1.2
V MB3843
—
150
300 µA MB3813A
—
270
540 µA MB3833A
—
310
620 µA MB3843
–1.0
—
1.0 µA
–1.4 –1.0 –0.6 µA
15 CT = 330 pF, RT = 15 kΩ 180
200
220 kHz
3
3 FB = 1.5 V, SEL = 0 V
3
3
3
FB = 1.5 V,
Ta = –30°C to +85°C
3
12.474
8.316
4.158
12.41
8.27
4.13
12.60
8.40
4.20
12.60
8.40
4.20
12.726
8.484
4.242
12.79
8.53
4.26
V MB3813A
V MB3833A
V MB3843
V MB3813A
V MB3833A
V MB3843
(Continued)
7
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