MB39A106 Datasheet, PDF (7/46 Pages) Fujitsu Component Limited. – 2-Channel DC/DC Converter IC with Overcurrent Protection Symmetrical-Phase Type

MB39A106
■ ELECTRICAL CHARACTERISTICS
(VCC = 12 V, VB = 0 mA, VREF = 0 mA, Ta = +25 °C)
Parameter
Pin
Symbol _No.
Conditions
Value
Unit
Min
Typ
Max
Reference
Voltage
Block [REF]
VREF
8 Ta = + 25 °C
3.465
Output voltage _∆VREF/
VREF
8
Ta = 0 °C to + 85 °C
⎯
Input stability Line 8 VCC = 6.5 V to 18 V
⎯
Load stability Load 8 VREF = 0 mA to − 1 mA
⎯
3.500
0.5*
1
3
3.535 V
⎯
%
10 mV
10 mV
Short-circuit
output current
IOS
8 VREF = 0 V
− 40
− 20
− 10 mA
Bias Voltage
Block [VB]
Output voltage
VB
22
⎯
5.88
6.00
6.12 V
Triangular
Waveform
Oscillator
Block [OSC]
Oscillation
frequency
Frequency/
temperature
variation
fOSC 17, 29 RT = 47 kΩ
∆fOSC/
fOSC
17, 29 Ta = 0 °C to + 85 °C
270
300
330 kHz
⎯
1*
⎯
%
Threshold
Undervoltage _voltage
VTH
(VCC)
Lockout Circuit
Block [UVLO]
Hysteresis
width
VH
Reset voltage VRST
8 VREF =
8
⎯
8 VREF =
2.6
2.8
3.0
V
⎯
0.2*
⎯
V
1.7
2.1
2.5
V
Short-circuit
Protection
Threshold
voltage
VTH
11
⎯
Circuit Block _{Input source}
[SCP]
current
ICSCP
11
⎯
0.65
0.70
0.75 V
− 14
− 10
− 6 µA
Overcurrent
Protection
Circuit Block
[OCP]
ILIM terminal
input current
Offset voltage
ILIM 23, 25 RT = 47 kΩ
VIO 23, 25
⎯
106
118
130 µA
⎯
1*
⎯ mV
Overvoltage
Protection
Circuit Block
[OVP]
Threshold
voltage
Input bias
current
VTH 1, 15 −INE =
IB 1, 15 −INE = 0 V
1.35
−730
1.38
−110
1.41 V
⎯ nA
Protection
Status
Output Circuit
Block
[PWRGOOD]
Soft-start
Circuit Block
[CS]
Output leakage
current
ILEAK
Output “L” level
voltage
VOL
Charge current ICS
12 PWRGOOD = 5 V
12 PWRGOOD = 1 mA
3, 13
⎯
⎯
⎯
40 µA
⎯
0.1
0.4
V
− 4.2
− 3.0
− 1.8 µA
(Continued)
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