|
MB3882 Datasheet, PDF (7/30 Pages) Fujitsu Component Limited. – 2-channel DC/DC Converter IC with Synchronous Rectifier | |||
|
◁ |
MB3882
s ELECTRICAL CHARACTERISTICS
(VCC = 12 V, VB = 0 mA, VREF = 0 mA, Ta = +25 °C)
Parameter
Symbol Pin No.
Conditions
Min.
Value
Typ.
Unit
Max.
1.
Reference
Voltage Block
[Ref]
Output voltage
Input stability
Load stability
VREF
âVREF/
VREF
Line
Load
24 Ta = +25 °C
2.475 2.500 2.525 V
24 Ta = 0 °C to +85 °C

0.5*

%
24 VCC = 5.5 V to 18 V

1
10 mV
24 VREF = 0 mA to â1 mA 
3
10 mV
Short output
current
Ios
24 VREF = 2 V
â28
â14
â7 mA
2.
Bias Voltage
Block
Output voltage
VB
13
[VB]

4.95 5.05 5.15 V
3.
Undervoltage
Lockout
Circuit Block
[UVLO]
4.
Soft Start
Block
[CS]
5.
Short
Detection
Comparator
Block
[SCP]
6.
Triangular
Wave
Oscillator
Block
[OSC]
Threshold
voltage
Hysteresis
width
Reset voltage
Charge
current
Threshold
voltage
Input source
current
Short
detection time
Oscillator
frequency
Frequency
temperature
variation rate
VTH
VH
VRST
ICS
VTH
ICSCP
tSCP
fOSC
âfOSC/
fOSC
VTH1
Threshold
7.
voltage
Error Amp
VTH2
Block
[Error Amp.] Input bias
current
IB
Voltage gain
AV
23 VCC =
23

23

4, 21

2.6
2.9
3.2 V

0.2*

V
1.7
2.1
2.5 V
â14
â10
â6 µA
22

0.63 0.68 0.73 V
22

â1.4 â1.0 â0.6 µA
22 CSCP = 0.01 µF
4.5
6.8 12.2 ms
1 RT = 10 kâ¦, CT = 470 pF 170
190
210 kHz
1 Ta = 0 °C to +85 °C
5, 20
5, 20
FB = 1.6 V,
Ta = +25 °C
FB = 1.6 V,
Ta = 0 °C to +85 °C
5, 20 âINE = 0 V
6, 19 DC

1*

%
1.241 1.2500 1.259 V
1.2375 1.2500 1.2625 V
â200 â20
60
100
 nA
 dB
* : Typical setting value
(Continued)
7
|
▷ |