MB3877 데이터 시트보기 (PDF) - Fujitsu

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MB3877

DC/DC Converter IC for Charging

Fujitsu 

MB3875/3877

(MB3875: Ta = +25°C, VCC = 16 V, VCC (O) = 16 V, VREF = 0 mA)

(MB3877: Ta = +25°C, VCC = 19 V, VCC (O) = 19 V, VREF = 0 mA)

Parameter

Symbol Pin No

Conditions

Value

Unit Remarks

Min Typ Max

Input offset

voltage

VIO 6,7,8,11 FB1 = FB2 = 2 V

—

1

5 mV

Input bias

current

IB 6,7,8,11

—

–100 –30

— nA

Common

mode input

VCM 6,7,8,11

—

voltage range

0

— VCC–1.8 V

Voltage gain

AV

3,9 DC

— 100* — dB

Frequency

bandwidth

BW

3,9 AV = 0 dB

—

2.0*

— MHz

VFBH

3,9

—

3.9

4.1

—

V

Output voltage

VFBL

3,9

—

—

20

200 mV

Output source

current

ISOURCE

3,9 FB1 = FB2 = 2 V

— –2.0 –0.6 mA

Output sink

current

ISINK

3,9 FB1 = FB2 = 2 V

150 300

— µA

Threshold

voltage

FB3 = 2 V,

12.500 12.600 12.700 V MB3875

Ta = +25 °C

VTH

2

FB3 = 2 V,

16.666 16.800 16.934

12.474 12.600 12.726

V MB3877

V MB3875

Ta = –30 °C to +85 °C 16.632 16.800 16.968 V MB3877

Input current

IINE3H

IINE3L

IN3 = 12.6 V

—

2

IN3 = 16.8 V

—

VCC = 0 V, IN3 = 12.6 V —

2

VCC = 0 V, IN3 = 16.8 V —

84

150 µA MB3875

84

150 µA MB3877

0

1

µA MB3875

0

1

µA MB3877

R1

2

Input resistor

70

100

130 kΩ MB3875

—

105 150 195 kΩ MB3877

R2

16

—

35

50

65 kΩ

Voltage gain

AV

15 DC

— 100* — dB

Frequency

bandwidth

BW

15 AV = 0 dB

—

2.0*

— MHz

VFBH

15

Output voltage

VFBL

15

—

3.9

4.1

—

V

—

—

20

200 mV

Output source

current

ISOURCE

15 FB3 = 2 V

— –2.0 –0.6 mA

Output sink

current

ISINK

15 FB3 = 2 V

150 300

— µA

*: Standard design value.

(Continued)

7

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