MB3800PFV-E1 데이터 시트보기 (PDF) - Fujitsu

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MB3800PFV-E1

BIPOLAR Switching Regulator Controller(Low Voltage)

Fujitsu 

MB3800

(Continued)

Parameter

Symbol

Condition

Output section

Output current

setting section/

Control section

Entire device

Output voltage

Output source current

Output sink current

Pull down resistance

Pin voltage

Input off condition

Input on condition

Pin current range

Stand-by current

Average supply

current

VOH1

VOH2

VOL1

VOL2

IO+

IO–

RO

VBR

IOFF

ION

IBR

ICCS

ICC

RB = 390 Ω, IO = –15 mA

RB = 750 Ω, VCC = 1.8 V

IO = –10 mA

RB = 390 Ω, IO = 15 mA

RB = 750 Ω, VCC = 1.8 V

IO = 10 mA

RB = 390 Ω, VO = 0.9 V

RB = 390 Ω, VO = 0.3 V

—

RB = 390 Ω

—

BR/CTL pin open or VCC

RB = 390 Ω

Value

Unit

Min Typ Max

1.0 1.2 — V

0.8 1.0 — V

— 0.1 0.2 V

— 0.1 0.2 V

— –30 –20 mA

30 60 — mA

20 30 40 kΩ

0.2 0.3 0.4 V

–20 — 0 µA

— — –45 µA

–1.8 — –0.1 mA

— — 1 µA

— 5.5 9.3 mA

■ DIAGRAM

FB pin voltage

Reference input for short circuit

detection comparator

Idle period setting voltage

Sawtooth wave output

Soft start setting voltage

OUT pin waveforms

SCP pin waveforms

ON

Power supply control SW

OFF

Soft start

tS

Output

short

circuit

t PE

Output short circuit

Short circuit

detection

6

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