MB39A123 Datasheet, PDF (11/44 Pages) Fujitsu Component Limited. – 6 ch DC/DC Converter IC with Synchronous Rectification

MB39A123
(VCC = VCCO = 4 V, Ta = +25 °C)
Parameter
Symbol Pin No.
Conditions
Value
Unit
Min Typ Max
Error Amp Block
(ch.2 to ch.6)
[Error Amp2 to
Error Amp6]
Output source
current
Output sink
current
ISOURCE
ISINK
15, 22,
25, 42, FB2 to FB6 = 0.65 V
45
15, 22,
25, 42, FB2 to FB6 = 0.65 V
45
⎯ −2 −1 mA
150 200 ⎯ µA
Input offset
voltage
VIO
18 OUTA = 1.23V
−10 0 + 10 mV
Input bias
current
IB
19 − INA = 0V
−120 −30 ⎯ nA
Voltage gain
AV
18 DC*
⎯ 100 ⎯ dB
Inverting Amp
Block (ch.4)
[Inv Amp]
Frequency
bandwidth
Output
voltage
BW
18 AV = 0 dB*
VOH
18
⎯
VOL
18
⎯
⎯ 1.0 ⎯ MHz
1.7 1.9 ⎯ V
⎯ 40 200 mV
Output source
current
ISOURCE
18 OUTA = 1.23V
⎯ −2 −1 mA
Output sink
current
ISINK
18 OUTA = 1.23V
150 200 ⎯ µA
PWM
Comparator
Block
(ch.1)
[PWM Comp.1]
Threshold
voltage
VT0 34, 35 Duty cycle = 0%
VT100 34, 35 Duty cycle = 100%
0.35 0.4 0.45 V
0.85 0.9 0.95 V
PWM
Comparator
Block
Threshold
voltage
(ch.2 to ch.6) _{Maximum duty}
[PWM Comp.2 to _cycle
PWM Comp.6]
VT0
VT100
Dtr
29 to 33 Duty cycle = 0%
29 to 33 Duty cycle = 100%
29 to 33
CT = 100 pF,
RT = 6.8 kΩ
0.35 0.4 0.45 V
0.85 0.9 0.95 V
87 92 97 %
Output source
current
ISOURCE
29 to 35
Duty ≤ 5%
OUT = 0 V
⎯ −130 −75 mA
Output sink
Output Block current
(ch.1 to ch.6)
[Drive1 to Drive6]
Output on
resistor
ISINK
29 to 35
Duty ≤ 5%
OUT = 4 V
ROH 29 to 35 OUT = − 15 mA
ROL 29 to 35 OUT = 15 mA
75 130 ⎯ mA
⎯ 18 27 Ω
⎯ 18 27 Ω
Dead time
tD1
34, 35 OUT2 − OUT1 *
tD2
34, 35 OUT1 − OUT2 *
⎯ 50 ⎯ ns
⎯ 50 ⎯ ns
(Continued)
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