APW7077 Ver la hoja de datos (PDF) - Anpec Electronics

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APW7077

PWM Step-Up DC-DC Converter

Anpec Electronics 

APW7077/A

Electrical Characteristics (Cont.)

(for all values TA = 25°C, VOUT = 3.3V, unless otherwise noted)

Symbol

Parameter

Test Condition

APW7077

Min Typ Max

Step-Up Section

VIN

Minimum Operating Input

Voltage

Operating Voltage

0.7

1

5.5

APW7077_33, Io<10mA

0.9

Start-up Voltage

APW7077_33, 10mA<Io<100mA

1.1

APW7077_50, Io<10mA

0.9

APW7077_50, 10mA<Io<100mA

1.1

VHOLD Hold Voltage

fSW Operating Frequency

DMAX Maximum Duty Cycle

Power MOSFET

ILOAD = 10mA

VOUT = 3.3VX96%

VOUT = 3.3VX96%

0.7 0.8

270 300 330

81 88 95

ISOURCE EXT Output Source Current Duty≤5%, EXT = 2.9V

ISINK EXT Output Sink Current Duty≤5%, EXT = 0.4V

Control Section

-70 -110 -150

80 120 160

VOUT

TSS

APW7077-33

IIN = 0mA

APW7077-50

IIN = 0mA

Soft-start Time

Soft-start Threshold Voltage Duty = 50%

3.218 3.3 3.383

4.875 5 5.125

10 25 40

1.65

Soft-start Hysteresis Voltage

150

Iq Operating Current

IOFF Stand-by Current

Switch-off Current

VCE Logic LOW (VIL)

Logic HIGH (VIH)

ICE CE Pin Input Current

VCE = VOUT, VOUT = 0.96VOUT

VCE = VOUT, VOUT = 1.04VOUT

VCE = VOUT, VOUT = 1.3VOUT

VCE = 0V

VCE = 0V

200 300

160 240

35 55

1

2

0.7

1.2

1

2

VCE = 2.0V

0.07 50

Unit

V

V

V

V

V

V

V

KHZ

%

mA

mA

V

V

ms

V

mV

µA

µA

µA

µA

V

V

µA

nA

Copyright © ANPEC Electronics Corp.

5

Rev. A.4 - Sep, 2005

www.anpec.com.tw

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