MB3778 データシートの表示（PDF） - Fujitsu

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MB3778

Switching Regulator Controller

Fujitsu 

MB3778

■ ELECTRICAL CHARACTERISTICS

Parameter

Symbol

Reference Block

Output Voltage

VREF

Output Temp. Stability

VRTC

Input Stability

Line

Load Stability

Load

Short Circuit Output Current

IOS

Under Voltage Lockout Protection Block

VtH

Threshold Voltage

VtL

Hysteresis Width

VHYS

Reset Voltage (VCC)

VR

Protection Circuit Block (S.C.P.)

Input Threshold Voltage

VtPC

Input Stand by Voltage

VSTB

Input Latch Voltage

VIN

Input Source Current

Ibpc

Comparator Threshold Voltage

VtC

Triangular Waveform Oscillator Block

Oscillator Frequency

fOSC

Frequency Deviation

fdev

Frequency Stability (VCC)

fdV

Frequency Stability (Ta)

fdT

Dead-Time Control Block (D.T.C.)

Input Bias Current

Ibdt

Latch Mode Sink Current

Idt

Latch Input Voltage

Vdt

Condition

IOR = −1 mA

Ta = −30 °C to +85 °C

VCC = 3.6 V to 18 V

IOR = −0.1 mA to −1 mA

VREF = 2 V

IOR = −0.1 mA

IOR = −0.1 mA

IOR = −0.1 mA

⎯

⎯

No pull up

No pull up

⎯

Pin 5, Pin 12

CT = 330 pF, RT = 15 kΩ

CT = 330 pF, RT = 15 kΩ

VCC = 3.6 V to 18 V

Ta = −30 °C to +85 °C

⎯

Vdt = 2.5 V

Idt = 100 µA

Min

2.41

−2

⎯

⎯

−30

⎯

⎯

80

1.5

0.60

⎯

⎯

−1.4

⎯

160

⎯

⎯

−4

⎯

150

⎯

(Ta = +25 °C, VCC = 6 V)

Value

Unit

Typ Max

2.46 2.51

V

±0.2

+2

%

2

10

mV

1

7.5 mV

−10

−3

mA

2.72

⎯

V

2.60

⎯

V

120

⎯

mV

1.9

⎯

V

0.65 0.70

V

50

100 mV

50

100 mV

−1.0 −0.6 µA

2.1

⎯

V

200

240 kHz

±5

⎯

%

±1

⎯

%

⎯

+4

%

0.2

1

µA

500

⎯

µA

⎯

0.3

V

(Continued)

7

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