MB39A106 Datasheet, PDF (8/46 Pages) Fujitsu Component Limited. – 2-Channel DC/DC Converter IC with Overcurrent Protection Symmetrical-Phase Type

MB39A106
Parameter
Error Amp
Block
[Error Amp]
Threshold
voltage
Input bias
current
Voltage gain
Frequency
bandwidth
Output voltage
Output source
current
Output sink
current
Symbol
VTH1
VTH2
IB
AV
BW
VFBH
VFBL
ISOURCE
ISINK
Pin
No.
1, 15
1, 15
1, 15
2, 14
2, 14
2, 14
2, 14
2, 14
2, 14
(VCC = 12 V, VB = 0 mA, VREF = 0 mA, Ta = +25 °C)
Conditions
Value
Unit
Min
Typ
Max
FB = 2.4 V,
Ta = + 25 °C
1.221 1.230 1.239 V
FB = 2.4 V,
Ta = 0 °C to + 85 °C
1.218 1.230 1.242 V
−INE = 0 V
− 730 − 110
⎯ nA
DC
60
100
⎯ dB
AV = 0 dB
⎯
1.5*
⎯ MHz
⎯
3.2
3.4
⎯
V
⎯
⎯
40
200 mV
FB = 2.4 V
⎯
−2
− 1 mA
FB = 2.4 V
150
250
⎯ µA
PWM
Comparator
Block
[PWM Comp.]
Threshold
voltage
VTL 2, 14 Duty cycle = 0 %
VTH 2, 14 Duty cycle = Dtr
1.7
1.8
⎯
V
⎯
2.86
3.00 V
Dead Time
Control Block
[DTC]
Output Block
[Drive]
Maximum duty
cycle
Dtr 17, 29 RT = 47 kΩ
Output
current
(main side)
Output voltage
(main side)
Output current
(synchronous
rectification
side)
OUT1 = 12 V, CB = 17 V,
ISOURCE1
17, 29
VS = 12 V,
Duty ≤ 5 %
(t = 1/ fOSC × Duty)
ISINK1
OUT1 = 17 V, CB = 17 V,
17, 29
VS = 12 V,
Duty ≤ 5 %
(t = 1/ fOSC × Duty)
VOH1
17, 29
OUT1 = − 100 mA,
CB = 17 V, VS = 12 V
VOL1
17, 29
OUT1 = 100 mA,
CB = 17 V, VS = 12 V
OUT2 = 0 V,
ISOURCE2 19, 27 Duty ≤ 5 %
(t = 1/ fOSC × Duty)
ISINK2
OUT2 = 6 V,
19, 27 Duty ≤ 5 %
(t = 1/ fOSC × Duty)
75
⎯
⎯
VCB
− 2.5
⎯
⎯
⎯
81
− 700*
900*
VCB
− 0.9
VS
+ 0.9
− 750*
900*
87
%
⎯ mA
⎯ mA
⎯
V
VS
+ 1.4
V
⎯ mA
⎯ mA
(Continued)
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