MB3875 データシートの表示（PDF） - Fujitsu

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MB3875

DC/DC Converter IC for Charging

Fujitsu 

MB3875/3877

(Continued)

Parameter

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

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

Symbol Pin No. Conditions

Value

Unit Remarks

Min Typ Max

Threshold voltage

VTL 3,9,15 Duty cycle = 0 %

1.4

1.5

—V

VTH 3,9,15 Duty cycle = 100 % —

2.5 2.6 V

Output source

current

ISOURCE

Output sink current ISINK

Output ON resistor

Rise time

Fall time

CTL input voltage

Input current

ROH

ROL

tr1

tf2

VON

VOFF

ICTLH

ICTLL

Output voltage

VH

Standby current

ICCS

Power supply current ICC

*: Standard design value.

OUT = 11 V

Duty ≤ 5 %

—

(t = 1/fosc × Duty )

20

OUT = 14 V

Duty ≤ 5 %

—

(t = 1/fosc × Duty )

OUT = 16 V

Duty ≤ 5 %

—

(t = 1/fosc × Duty )

20

OUT = 19 V

Duty ≤ 5 %

—

(t = 1/fosc × Duty )

20 OUT = −45 mA

—

20 OUT = 45 mA

—

20 OUT = 3300 pF

—

(Equivalent to Si4435DY)

20 OUT = 3300 pF

—

(Equivalent to Si4435DY)

14 Active mode

2

14 Standby mode

0

14 CTL = 5 V

—

14 CTL = 0 V

—

–200* — mA MB3875

–200* — mA MB3877

200* — mA MB3875

200* — mA MB3877

8.0

16 Ω

6.5

13 Ω

70*

— ns

60*

— ns

—

25 V

—

0.8 V

100 200 µA

0

1 µA

VCC = VCC(O)

19 = 7 V to 25 V,

VH = 0 to 30 mA

VCC–5.5 VCC–5.0 VCC–4.5 V

18

VCC = VCC(O),

CTL = 0 V

18

VCC = VCC(O),

CTL = 5 V

—

0

10 µA

—

6.0

9.0 mA MB3875

—

6.5

9.5 mA MB3877

9

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