MB39A107 データシートの表示（PDF） - Fujitsu

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MB39A107

DC/DC Converter IC for Charging Li-ion Battery with Synchronous Rectifier

Fujitsu 

MB39A107

s ELECTRICAL CHARACTERISTICS

(VCC = 19 V, VB = 0 mA, VREF = 0 mA, Ta = + 25 °C)

Parameter

Symbol

Pin

No.

Conditions

Value

Unit

Min Typ Max

Reference

Voltage

Block

[Ref]

Output voltage

Input stability

Load stability

Short-circuit output

current

VREF1

VREF2

Line

Load

los

20 Ta = + 25 °C

4.967 5.000 5.041 V

20 Ta = − 10 °C to + 85 °C 4.95 5.00 5.05 V

20 VCC = 7 V to 25 V



3

10 mV

20 VREF = 0 mA to − 1 mA 

1

10 mV

20 VREF = 1 V

− 50 − 25 − 12 mA

Under

Voltage

(VCC)

Lockout

Circuit

Block

[UVLO]

Threshold voltage

Hysteresis width

Threshold voltage

Hysteresis width

VTLH

VTHL

VH

VTLH

VTHL

VH

30 VB =

30 VB =

30



20 VREF =

20 VREF =

20



3.80 4.00 4.20 V

3.10 3.30 3.50 V

0.49 0.70 0.91 V

2.6 2.8 3.0 V

2.4 2.6 2.8 V

0.05 0.20 0.35 V

Soft-start

Circuit

Block

Charge current

ICS

18



− 14 − 10 − 6 µA

[SOFT]

Triangular

Wave

Oscillator

Block

[OSC]

Oscillation frequency

Frequency temperature

variation

fOSC

∆fOSC/

fOSC

28 RT = 47 kΩ

28 Ta = − 30 °C to +85 °C

450 500 550 kHz



1*

%

Threshold voltage

VTH1 8, 9 FB1 = 2 V, Ta = +25 °C 4.179 4.200 4.221 V

VTH2

8, 9

FB1 = 2 V,

Ta = − 10 °C to +85 °C

4.169 4.200 4.231

V

Input offset voltage

VIO 7, 8 FB1 = 2 V



1

5 mV

Input bias current

Error

Amp Block Voltage gain

[Error

Amp1]

Frequency bandwidth

IB

7, 8 − INE1 = + INE1 = 0 V − 100 − 30  nA

AV

7, 8,

9

DC

 100*  dB

BW

7, 8,

9

AV = 0 dB

 1.2*  MHz

VFBH

9



4.8 5.0  V

Output voltage

VFBL

9



 0.8 0.9 V

Output source current ISOURCE 9 FB1 = 2 V

 − 120 − 60 µA

Output sink current

ISINK

9 FB1 = 2 V

2.0 4.0  mA

* : Standard design value

(Continued)

8

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