Fujitsu MB3878 manual Absolute Maximum Ragings, Recommended Operating Conditions, Parameter

Page 5

MB3878

ABSOLUTE MAXIMUM RAGINGS

Parameter

Symbol

Conditions

 

Rating

Unit

 

 

 

Min

 

Max

 

 

 

 

 

 

 

 

 

 

 

 

Power supply voltage

VCC

VCC, VCC (O)

 

28

V

 

 

 

 

 

 

 

Output current

IOUT

 

60

mA

 

 

 

 

 

 

 

Peak output current

IOUT

Duty 5 % (t = 1 / fOSC Duty)

 

500

mA

 

 

 

 

 

 

 

Power dissipation

PD

Ta ≤ +25 °C

 

740*

mW

 

 

 

 

 

 

 

Storage temperature

Tstg

55

 

+125

°C

 

 

 

 

 

 

 

* : The package is mounted on the dual-sided epoxy board (10 cm 10 cm).

WARNING: Semiconductor devices can be permanently damaged by application of stress (voltage, current, temperature, etc.) in excess of absolute maximum ratings. Do not exceed these ratings.

RECOMMENDED OPERATING CONDITIONS

Parameter

Symbol

Conditions

 

Value

 

Unit

 

 

 

Min

Typ

Max

 

 

 

 

 

 

 

 

 

 

 

Power supply voltage

VCC

VCC, VCC (O)

7

25

V

 

 

 

 

 

 

 

Reference voltage output

IREF

1

0

mA

current

 

 

 

 

 

 

 

 

 

 

 

 

 

VH pin output current

IVH

0

30

mA

 

 

 

 

 

 

 

Input voltage

VINE

INE1 to INE3, +INE1, +INE2

0

VCC 1.8

V

 

 

 

 

 

 

VINC

+INC1, +INC2, INC1, INC2

0

VCC

V

 

 

 

 

 

 

 

 

OUTD pin output voltage

VOUTD

0

17

V

 

 

 

 

 

 

 

OUTD pin output current

IOUTD

0

2

mA

 

 

 

 

 

 

 

CTL pin input voltage

VCTL

0

25

V

 

 

 

 

 

 

 

output current

IOUT

45

45

mA

 

 

 

 

 

 

 

Peak output current

IOUT

Duty 5 % (t = 1 / fosc Duty)

450

450

mA

 

 

 

 

 

 

 

Oscillator frequency

fOSC

100

290

500

kHz

 

 

 

 

 

 

 

Timing resistor

RT

33

47

130

kΩ

 

 

 

 

 

 

 

Soft-start capacitor

CS

2200

100000

pF

 

 

 

 

 

 

 

VH pin capacitor

CVH

0.1

1.0

F

 

 

 

 

 

 

 

Reference voltage output

CREF

0.1

1.0

F

capacitor

 

 

 

 

 

 

 

 

 

 

 

 

 

Operating ambient temperature

Ta

30

+25

+85

°C

 

 

 

 

 

 

 

WARNING: The recommended operating conditions are required in order to ensure the normal operation of the semiconductor device. All of the device’s electrical characteristics are warranted when the device is operated within these ranges.

Always use semiconductor devices within their recommended operating condition ranges. Operation outside these ranges may adversely affect reliability and could result in device failure.

No warranty is made with respect to uses, operating conditions, or combinations not represented on the data sheet. Users considering application outside the listed conditions are advised to contact their FUJITSU representatives beforehand.

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Contents Package FeaturesDescription TOP View PIN AssignmentPIN Description Pin No Symbol DescriptionsBlock Diagram Absolute Maximum Ragings Parameter Symbol Conditions Rating Unit Min MaxRecommended Operating Conditions ParameterParameter Symbol Pin Conditions Value Unit Min Typ Electrical CharacteristicsOutd = 1 mA 100 On resistor Parameter Symbol Pin Conditions Value Unit Min Typ Max200 Amplifier block Output source Typical Characteristics Triangular wave oscillator Deg Functional Description Output block OUT PWM comparator block PWM CompControl block CTL Bias voltage block VHMethod of Setting the Charging Current Setting the Charging VoltageMethod of Setting the SOFT-START Time Method of Setting the Triangular Wave Oscillator FrequencyAC Adaptor Voltage Detection Operation Timing DiagramVcco OUT VIN Batt Processing Without USE of the CS PINOUTC2 Application ExampleParts No Batt Reference DataVCC Vishay Siliconix Ordering Information Usage PrecautionsPart number Package Remarks MB3878PFVIndex Package DimensionFujitsu Limited