MB3874 データシートの表示（PDF） - Fujitsu

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MB3874

DC/DC Converter IC for Parallel Charging

Fujitsu 

MB3874/MB3876

(Continued)

(MB3874 : Ta = +25°C, VCC = 16 V, VREF = 0 mA)

(MB3876 : Ta = +25°C, VCC = 19 V, VREF = 0 mA)

Parameter

Symbol Pin No.

Conditions

Value

Unit Remarks

Min. Typ. Max.

Output source

current

ISOURCE

OUT = 11 V,

Duty ≤ 5 %

(t = 1/fosc × Duty )

20

OUT = 14 V,

Duty ≤ 5 %

(t = 1/fosc × Duty )

— –200* — mA MB3874

— –200* — mA MB3876

Output sink current ISINK

OUT = 16 V,

Duty ≤ 5 %

(t = 1/fosc × Duty )

20

OUT = 19 V,

Duty ≤ 5 %

(t = 1/fosc × Duty )

— 200* — mA MB3874

— 200* — mA MB3876

ROH

Output ON resistor

ROL

20 OUT = −45 mA

20 OUT = 45 mA

—

8.0 16.0 Ω

—

6.5 13.0 Ω

Rise time

tr1

20 OUT = 3300 pF

(Equivalent to Si4435DY)

— 70* — ns

Fall time

tf1

20 OUT = 3300 pF

(Equivalent to Si4435DY)

— 60* — ns

CTL input voltage

VON

VOFF

6 Active mode

6 Standby mode

2.0

— 25.0 V

0

—

0.8 V

Input current

ICTLH

ICTLL

6 CTL = 5 V

6 CTL = 0 V

— 100 200 µA

—

0

1 µA

Output voltage

VH

19

VCC = 7 V to 25 V,

VH = 0 to 30 mA

Standby current

ICCS

21 CTL = 0 V

Power supply

current

ICC

21 CTL = 5 V

*: Standard design value

VCC – VCC – VCC –

5.5 5.0 4.5

V

—

0

10 µA

—

6.0 9.0 mA MB3874

—

6.5 9.5 mA MB3876

11

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